title
DevOps Tutorial For Beginners - 1 | DevOps Tutorial | DevOps Training Videos | Simplilearn
description
🔥 IIT Guwahati Professional Certificate Program In Cloud Computing And DevOps (India Only): https://www.simplilearn.com/professional-certificate-program-cloud-computing-devops?utm_campaign=25AugustTubebuddyExpCloud&DevopsIITG&utm_medium=DescriptionFF&utm_source=youtube
🔥DevOps Engineer Masters Program (Discount Code - YTBE15): https://www.simplilearn.com/devops-engineer-masters-program-certification-training?utm_campaign=SCE-DevopsMaster&utm_medium=DescriptionFF&utm_source=youtube
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This DevOps Tutorial will help you understand what is DevOps, DevOps technical challenges, how to choose best tools, when to deploy application along with some of the security issues. This DevOps Tutorial is designed for absolute beginners to help them begin their DevOps career.
This DevOps Tutorial will explain the topics listed below:
1. What is DevOps? ( 2:16 )
2. DevOps issues. ( 3:03 )
3. DevOps toolchain ( 4:15 )
4. DevOps goals ( 4:56 )
5. How to choose the best tools? ( 9:43 )
6. DevOps architecture. ( 1:09:23 )
What is DevOps?
1. It is about defining a flow from the development through the full-scale operation of a system.
2. It is about systems thinking with feedback to easier stages of a DevOps workflow.
3. The emphasis is on automating processes required to release and change the software.
DevOps Toolchain:
Activities that have their own category of tooling are:
1. Monitoring performance.
2. Releasing into production.
3. Configuration management.
4. Packing the application.
5. Integration and performance testing.
6. Building applications.
7. Code development and unit testing.
DevOps Tutorial Playlist: https://www.youtube.com/playlist?list=PLEiEAq2VkUUJS6zkGgXeWw9l32EwRoYdR
DevOps Articles: https://www.simplilearn.com/devops-revolution-article?utm_campaign=Devops-Overview-y3aJr6Am30M&utm_medium=Tutorials&utm_source=youtube
🔥Free DevOps Course: https://www.simplilearn.com/learn-devops-basics-skillup?utm_campaign=DevOpsTutorial&utm_medium=Description&utm_source=youtube
➡️About Post Graduate Program In DevOps
DevOps training course will bring out the scientist in you. You'll learn how to formalize and document development processes and create a self-documenting system. DevOps certification course will also cover advanced tools like Puppet, SaltStack, and Ansible that help self-governance and automated management at scale.
âś…Key features
- Caltech CTME Post Graduate Certificate
- Enrolment in Simplilearn’s JobAssist
- Receive up to 25 CEUs from Caltech CTME upon course completion
- Simplilearn's JobAssist helps you get noticed by top hiring companies
- Attend Masterclasses from Caltech CTME instructors
- Live virtual classes led by industry experts, hands-on projects and integrated labs
- Online Convocation by Caltech CTME Program Director
- 20+ real-life projects on integrated labs
- Capstone project in 3 domains
- Caltech CTME Circle Membership
âś…Skills Covered
- DevOps Methodology
- Continuous Integration
- Continuous Delivery
- Configuration Management
- Containerization
- DevOps on Cloud
- Source Control
- Deployment Automation
- Cloud Platforms
👉 Learn More At: https://www.simplilearn.com/pgp-devops-certification-training-course?utm_campaign=DevOpsTutorial-y3aJr6Am30M&utm_medium=Description&utm_source=youtube
🔥🔥 Interested in Attending Live Classes? Call Us: IN - 18002127688 / US - +18445327688
detail
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certification.']}, {'end': 443.19, 'segs': [{'end': 264.551, 'src': 'heatmap', 'start': 152.206, 'weight': 0.993, 'content': [{'end': 155.989, 'text': 'We need to work in conjunction with the operations people and the QA people.', 'start': 152.206, 'duration': 3.783}, {'end': 165.377, 'text': 'We need to find out how to develop an application from start to end, from the inception all the way through to production and production support.', 'start': 156.77, 'duration': 8.607}, {'end': 172.507, 'text': "It's about thinking about how things are going to work in the future when we're in the very beginning stages of the operations.", 'start': 166.224, 'duration': 6.283}, {'end': 176.349, 'text': 'And also the great importance is on automating the processes.', 'start': 173.507, 'duration': 2.842}, {'end': 178.05, 'text': "We don't want to do things manual anymore.", 'start': 176.369, 'duration': 1.681}, {'end': 181.911, 'text': 'We want everything to be fast, totally automated and reliable.', 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doesn't mean reducing testing, it means reducing the time that the test is actually run.", 'start': 334.636, 'duration': 3.941}, {'end': 341.538, 'text': 'Try to reduce the amount of changes required.', 'start': 339.537, 'duration': 2.001}, {'end': 346.939, 'text': 'When the requirements are conflicting or incomplete, we need to resolve those conflicts early on.', 'start': 342.138, 'duration': 4.801}, {'end': 350.683, 'text': 'We need to find the simplest solution to meet the requirements.', 'start': 347.941, 'duration': 2.742}], 'summary': 'Improve team efficiency by reducing testing time and changes, resolving conflicts early, and finding simplest solutions.', 'duration': 27.73, 'max_score': 322.953, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M322953.jpg'}], 'start': 79.111, 'title': 'Devops principles and tools', 'summary': 'Provides an overview of devops, emphasizing collaboration between developers and operations, automation, and addressing challenges. it also discusses goals such as improving efficiency and reducing testing time, along with the importance of coordination, feedback loops, continuous improvement, and a range of available tools.', 'chapters': [{'end': 264.551, 'start': 79.111, 'title': 'Devops overview and challenges', 'summary': 'Provides an overview of devops, emphasizing the need for collaboration between developers and operations, automation of processes, and addressing challenges such as changing software requirements and deployment issues.', 'duration': 185.44, 'highlights': ['DevOps emphasizes collaboration between developers, operations, and QA to develop applications from inception to production, focusing on automation and reliability.', 'The chapter discusses the challenges of changing software requirements, defining software paths, packaging, distribution, deployment, and ongoing operations.', 'The need for individuals who can bridge the gap between developers and operations is highlighted, emphasizing the importance of resolving deployment issues and integrating application servers.']}, {'end': 443.19, 'start': 264.571, 'title': 'Devops goals and tools overview', 'summary': 'Discusses the goals of devops, including improving process efficiency and reducing testing time, while emphasizing the importance of coordination, feedback loops, and continuous improvement, as well as the range of tools available for various stages of the development process.', 'duration': 178.619, 'highlights': ['Improving process efficiency and reducing testing time DevOps aims to reduce testing time while improving process efficiency, ultimately leading to fewer incidents in production, which have costly repercussions.', 'Coordination, feedback loops, and continuous improvement The chapter emphasizes the importance of coordinating with teams, having feedback loops, and striving for continuous improvement in the way teams work together and use tools, with the goal of achieving higher process efficiency and fewer incidents in production.', 'Range of tools available for various stages of the development process The discussion covers a range of tools for different stages of the development process, including monitoring, releasing into production, configuration management, testing, integration, performance testing, and building the application, highlighting the importance of using standard tools across the organization that integrate well together.']}], 'duration': 364.079, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M79111.jpg', 'highlights': ['DevOps emphasizes collaboration between developers, operations, and QA, focusing on automation and reliability.', 'Improving process efficiency and reducing testing time aims to reduce incidents in production.', 'The need for individuals bridging the gap between developers and operations is highlighted.']}, {'end': 1149.529, 'segs': [{'end': 567.849, 'src': 'embed', 'start': 501.864, 'weight': 0, 'content': [{'end': 507.825, 'text': 'We have very small, fast, and efficient machines these days, and we have to be able to use this technology to its best.', 'start': 501.864, 'duration': 5.961}, {'end': 511.109, 'text': 'Our working environment is changing as well.', 'start': 509.028, 'duration': 2.081}, {'end': 518.874, 'text': "We've learnt over the time how to do things better and we've got more interesting working practices these days than we've ever had before.", 'start': 511.61, 'duration': 7.264}, {'end': 524.558, 'text': 'Good practices five years ago are now considered bad practices, this constantly evolving.', 'start': 519.635, 'duration': 4.923}, {'end': 528.44, 'text': 'There are also external influences over which we have no control.', 'start': 525.598, 'duration': 2.842}, {'end': 531.872, 'text': 'A news story can cause major economic incidents.', 'start': 529.471, 'duration': 2.401}, {'end': 533.512, 'text': 'There are legal effects.', 'start': 532.572, 'duration': 0.94}, {'end': 538.033, 'text': 'Some industries, particularly the finance industry, is very, very tightly regulated.', 'start': 534.092, 'duration': 3.941}, {'end': 540.734, 'text': "And there's also social influences as well.", 'start': 538.634, 'duration': 2.1}, {'end': 543.755, 'text': 'We need to keep our customers happy at all times.', 'start': 541.074, 'duration': 2.681}, {'end': 547.616, 'text': 'So DevOps is a culture which we need to build and maintain.', 'start': 544.415, 'duration': 3.201}, {'end': 551.935, 'text': 'It needs to adapt to continuous change by continually changing.', 'start': 548.612, 'duration': 3.323}, {'end': 555.258, 'text': "And the organisation's culture needs to evolve around it.", 'start': 552.635, 'duration': 2.623}, {'end': 558.541, 'text': 'The problem is people are very resistant to change.', 'start': 555.898, 'duration': 2.643}, {'end': 561.663, 'text': "They don't like to have to do something in a different way to which they're used to.", 'start': 558.661, 'duration': 3.002}, {'end': 565.527, 'text': 'But also we need to get people to work together and not in isolation.', 'start': 562.424, 'duration': 3.103}, {'end': 567.849, 'text': 'Some people do not like this.', 'start': 566.247, 'duration': 1.602}], 'summary': 'Efficient technology and evolving working practices drive the need for a devops culture to adapt to continuous change and encourage collaboration, despite resistance to change.', 'duration': 65.985, 'max_score': 501.864, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M501864.jpg'}, {'end': 635.129, 'src': 'embed', 'start': 608.795, 'weight': 2, 'content': [{'end': 615.681, 'text': "Open source tools are readily available, although some organizations don't like to use open source tools because of support issues.", 'start': 608.795, 'duration': 6.886}, {'end': 621.686, 'text': "But it's also important to have a very standardized set of tools across the organization for various reasons.", 'start': 616.581, 'duration': 5.105}, {'end': 624.006, 'text': 'So look at the reasons.', 'start': 623.086, 'duration': 0.92}, {'end': 626.027, 'text': 'First of all, licensing and compliance.', 'start': 624.426, 'duration': 1.601}, {'end': 630.228, 'text': 'Many of the software applications and tools require licensing.', 'start': 626.967, 'duration': 3.261}, {'end': 635.129, 'text': 'That can get incredibly complex for a big organization with a very wide range of tooling.', 'start': 630.588, 'duration': 4.541}], 'summary': 'Some organizations face support issues with open source tools, but standardized tools are crucial for licensing and compliance in big organizations.', 'duration': 26.334, 'max_score': 608.795, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M608795.jpg'}, {'end': 712.428, 'src': 'embed', 'start': 685.713, 'weight': 4, 'content': [{'end': 689.655, 'text': 'and tools must be cloud-ready or cloud-compatible for future deployment.', 'start': 685.713, 'duration': 3.942}, {'end': 696.62, 'text': 'The old and new systems need to work together and complete with production support for both old and new systems.', 'start': 691.297, 'duration': 5.323}, {'end': 701.726, 'text': "Corporate networks are very important and they're getting increasingly complex.", 'start': 697.745, 'duration': 3.981}, {'end': 704.927, 'text': 'We need to address issues such as internet connectivity.', 'start': 702.046, 'duration': 2.881}, {'end': 709.207, 'text': 'We need to think about the addressing of various machines and firewalls.', 'start': 705.127, 'duration': 4.08}, {'end': 712.428, 'text': 'We need to have virtual local area networks across sites.', 'start': 709.487, 'duration': 2.941}], 'summary': 'Ensuring cloud-ready tools, addressing network complexity, and implementing virtual lans across sites are key for future deployment and production support.', 'duration': 26.715, 'max_score': 685.713, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M685713.jpg'}, {'end': 785.438, 'src': 'embed', 'start': 750.314, 'weight': 5, 'content': [{'end': 752.995, 'text': 'Everything is denied by default, which is always a good thing.', 'start': 750.314, 'duration': 2.681}, {'end': 756.316, 'text': 'You have to open up access to give people permission to do things.', 'start': 753.215, 'duration': 3.101}, {'end': 758.657, 'text': "There's also a cost impact.", 'start': 756.736, 'duration': 1.921}, {'end': 761.478, 'text': 'Changing corporate culture is costly.', 'start': 759.357, 'duration': 2.121}, {'end': 762.778, 'text': 'We need to buy new hardware.', 'start': 761.698, 'duration': 1.08}, {'end': 764.719, 'text': 'We need to buy new software licenses.', 'start': 762.978, 'duration': 1.741}, {'end': 769.783, 'text': 'We need to pay for cloud usage, which is usually by resources like CPU and network.', 'start': 765.359, 'duration': 4.424}, {'end': 776.81, 'text': 'We need to retrain our employees so that they understand and use the new equipment and tools very well.', 'start': 770.003, 'duration': 6.807}, {'end': 778.171, 'text': 'People are learning new skills.', 'start': 776.97, 'duration': 1.201}, {'end': 781.134, 'text': 'We do run to reduce efficiency, but we have to live with that.', 'start': 778.271, 'duration': 2.863}, {'end': 783.536, 'text': 'So there needs to be a budget for ongoing change.', 'start': 781.434, 'duration': 2.102}, {'end': 785.438, 'text': "We need to know it's going to cost.", 'start': 784.137, 'duration': 1.301}], 'summary': 'Cost impact of changing corporate culture includes new hardware, software licenses, cloud usage, and employee retraining.', 'duration': 35.124, 'max_score': 750.314, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M750314.jpg'}, {'end': 868.729, 'src': 'embed', 'start': 840.134, 'weight': 7, 'content': [{'end': 845.197, 'text': 'And there are a number of categories of tools for each stage of the software development lifecycle phases.', 'start': 840.134, 'duration': 5.063}, {'end': 847.858, 'text': 'Some tools straddle various phases.', 'start': 845.877, 'duration': 1.981}, {'end': 850.319, 'text': 'Some are very specific to individual phases.', 'start': 848.158, 'duration': 2.161}, {'end': 853.621, 'text': "So let's look at the first stage, which is requirements analysis.", 'start': 851.04, 'duration': 2.581}, {'end': 858.263, 'text': "And it's all about communication within the team and talking across different roles.", 'start': 854.702, 'duration': 3.561}, {'end': 863.666, 'text': 'So we need to be able to allow developers, managers, customers,', 'start': 858.944, 'duration': 4.722}, {'end': 868.729, 'text': 'business analysts all to talk the same language and think about the various tools that we want to use.', 'start': 863.666, 'duration': 5.063}], 'summary': 'Various tools are used for different phases of software development lifecycle, emphasizing the need for effective communication and collaboration across roles.', 'duration': 28.595, 'max_score': 840.134, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M840134.jpg'}, {'end': 934.21, 'src': 'heatmap', 'start': 869.648, 'weight': 0.732, 'content': [{'end': 876.094, 'text': 'So fairly obviously word processes and spreadsheets, although spreadsheets are often very much abused and can cause a lot of problems.', 'start': 869.648, 'duration': 6.446}, {'end': 879.017, 'text': 'Shared calendars, so we know when meetings are.', 'start': 876.734, 'duration': 2.283}, {'end': 884.001, 'text': 'Sprint management tools, although a lot of sprint management tools are very low tech.', 'start': 879.677, 'duration': 4.324}, {'end': 888.725, 'text': 'Wikis are incredibly useful for storing information which is readily accessible.', 'start': 884.762, 'duration': 3.963}, {'end': 896.092, 'text': 'We need UML diagramming tools to describe our applications and we need issue and task management tools to manage the workflow.', 'start': 889.646, 'duration': 6.446}, {'end': 899.276, 'text': 'We have the concept of artifact creation.', 'start': 897.435, 'duration': 1.841}, {'end': 907.26, 'text': 'An artifact is simply a byproduct or result of some operation on some kind of code.', 'start': 899.916, 'duration': 7.344}, {'end': 910.301, 'text': 'So very important to source control systems.', 'start': 907.96, 'duration': 2.341}, {'end': 915.704, 'text': "They manage the versioning of our code and make sure that we're building the right thing from the right versions of the software.", 'start': 910.741, 'duration': 4.963}, {'end': 918.285, 'text': "We've got continuous integration tools.", 'start': 916.764, 'duration': 1.521}, {'end': 924.268, 'text': "Very important for detecting problems early so that they can be fixed and so they don't delay other developers' work.", 'start': 918.725, 'duration': 5.543}, {'end': 934.21, 'text': 'We have build tools which assemble the components of our software from source code through the various artifacts to the production executables.', 'start': 925.247, 'duration': 8.963}], 'summary': 'Key tools for software development include spreadsheets, shared calendars, sprint management, wikis, uml diagramming, issue and task management, source control systems, continuous integration, and build tools.', 'duration': 64.562, 'max_score': 869.648, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M869648.jpg'}], 'start': 444.191, 'title': 'Devops challenges and best practices', 'summary': 'Discusses the evolving nature of working practices, technical challenges in it, the importance of devops culture, and the necessity for standardized tools and cloud compatibility in organizations. it also addresses the challenges of implementing devops, including cost impact, the need for new hardware and software licenses, employee retraining, and the various software tools required for different stages of the software development lifecycle.', 'chapters': [{'end': 749.973, 'start': 444.191, 'title': 'Devops challenges and best practices', 'summary': 'Discusses the evolving nature of working practices, technical challenges in it, the importance of devops culture, and the necessity for standardized tools and cloud compatibility in organizations.', 'duration': 305.782, 'highlights': ['The technology and working environment are constantly evolving, leading to the need for iterative improvement of practices over time. The transcript emphasizes the constant evolution of technology and working practices, highlighting the need for continuous improvement and adaptation.', 'DevOps is crucial in addressing technical challenges in IT, including the evolution of technology, changing working environments, and external influences such as legal and social factors. The chapter underscores the importance of DevOps in tackling technical challenges, encompassing the evolution of technology, changing working environments, and external influences.', 'The resistance to change and the need for cultural evolution within organizations are addressed, emphasizing the importance of collaboration and adaptability in DevOps culture. The transcript discusses the resistance to change within organizations and emphasizes the need for cultural evolution, highlighting the importance of collaboration and adaptability in DevOps culture.', 'The necessity for standardized tools across organizations is emphasized due to licensing and compliance issues, versioning problems, production support, and future maintenance considerations. The chapter highlights the importance of standardized tools across organizations, citing licensing and compliance issues, versioning problems, production support, and future maintenance considerations as key factors.', 'Cloud compatibility and networking complexities are addressed, discussing the need for cloud-ready tools, hybrid environments, and secure networking configurations. The transcript delves into cloud compatibility and networking complexities, emphasizing the need for cloud-ready tools, addressing hybrid environments, and ensuring secure networking configurations.']}, {'end': 1149.529, 'start': 750.314, 'title': 'Challenges of devops implementation', 'summary': 'Discusses the challenges of implementing devops, including the cost impact, the need for new hardware and software licenses, employee retraining, and the various software tools required for different stages of the software development lifecycle.', 'duration': 399.215, 'highlights': ['The cost impact of changing corporate culture is significant, including expenses for new hardware, software licenses, and cloud usage. Implementing DevOps involves considerable cost impact, including investment in new hardware, software licenses, and cloud usage.', 'Retraining employees to use new equipment and tools is essential, as it involves learning new skills and may temporarily reduce efficiency. The retraining of employees for using new tools and equipment is crucial, involving the acquisition of new skills and potential short-term efficiency reduction.', 'The various software tools required for different stages of the software development lifecycle are discussed, including tools for requirements analysis, artifact creation, continuous integration, code development, testing, deployment, and enterprise integration. The transcript explores the need for various software tools across different stages of the software development lifecycle, encompassing requirements analysis, artifact creation, continuous integration, code development, testing, deployment, and enterprise integration.']}], 'duration': 705.338, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M444191.jpg', 'highlights': ['The resistance to change and the need for cultural evolution within organizations are addressed, emphasizing the importance of collaboration and adaptability in DevOps culture.', 'The technology and working environment are constantly evolving, leading to the need for iterative improvement of practices over time.', 'The necessity for standardized tools across organizations is emphasized due to licensing and compliance issues, versioning problems, production support, and future maintenance considerations.', 'DevOps is crucial in addressing technical challenges in IT, including the evolution of technology, changing working environments, and external influences such as legal and social factors.', 'Cloud compatibility and networking complexities are addressed, discussing the need for cloud-ready tools, hybrid environments, and secure networking configurations.', 'The cost impact of changing corporate culture is significant, including expenses for new hardware, software licenses, and cloud usage.', 'Retraining employees to use new equipment and tools is essential, as it involves learning new skills and may temporarily reduce efficiency.', 'The various software tools required for different stages of the software development lifecycle are discussed, including tools for requirements analysis, artifact creation, continuous integration, code development, testing, deployment, and enterprise integration.']}, {'end': 1584.678, 'segs': [{'end': 1250.548, 'src': 'embed', 'start': 1164.553, 'weight': 1, 'content': [{'end': 1172.195, 'text': "It's getting increasingly important to deploy things into the cloud as the cloud gives us many benefits, including cost and performance.", 'start': 1164.553, 'duration': 7.642}, {'end': 1178.649, 'text': 'Traditionally, companies had data centres, but data centres are very expensive to run and maintain.', 'start': 1173.646, 'duration': 5.003}, {'end': 1185.072, 'text': "For a start-off, you've got to have a building, and the building needs to be maintained, and it has to be purchased.", 'start': 1179.629, 'duration': 5.443}, {'end': 1189.315, 'text': "We've also got to buy vast quantities of computer hardware.", 'start': 1185.993, 'duration': 3.322}, {'end': 1190.315, 'text': "That's expensive.", 'start': 1189.575, 'duration': 0.74}, {'end': 1193.037, 'text': 'We also need considerable power supplies.', 'start': 1191.216, 'duration': 1.821}, {'end': 1200.281, 'text': 'Large data centres consume vast amounts of power, and anything that uses vast amounts of power gets very hot,', 'start': 1193.237, 'duration': 7.044}, {'end': 1202.202, 'text': 'so we need a good cooling supply to do that.', 'start': 1200.281, 'duration': 1.921}, {'end': 1204.705, 'text': 'also need physical security.', 'start': 1203.323, 'duration': 1.382}, {'end': 1209.61, 'text': "we don't want people getting into our data center and causing problems.", 'start': 1204.705, 'duration': 4.905}, {'end': 1214.935, 'text': 'we need to make sure we can connect to the data center from anywhere in the world that we need to.', 'start': 1209.61, 'duration': 5.325}, {'end': 1217.338, 'text': 'we also need to have maintenance teams to support everything,', 'start': 1214.935, 'duration': 2.403}, {'end': 1222.884, 'text': 'because hardware fails fairly frequently and we need to get it fixed as soon as possible.', 'start': 1217.338, 'duration': 5.546}, {'end': 1229.083, 'text': "we also need to have security teams in place to check that Everybody's got the right access and nobody has unauthorised access.", 'start': 1222.884, 'duration': 6.199}, {'end': 1233.564, 'text': "But that means we've got to have policies and mechanisms in place to secure our data centres.", 'start': 1229.583, 'duration': 3.981}, {'end': 1235.265, 'text': "So it's a very expensive thing to do.", 'start': 1233.784, 'duration': 1.481}, {'end': 1238.946, 'text': 'To give an example of failures.', 'start': 1236.845, 'duration': 2.101}, {'end': 1246.108, 'text': 'The standard SATA hard drive has got a mean time between failure of 1.2 million hours.', 'start': 1240.646, 'duration': 5.462}, {'end': 1247.349, 'text': "That's a long time.", 'start': 1246.608, 'duration': 0.741}, {'end': 1248.049, 'text': "It's several years.", 'start': 1247.409, 'duration': 0.64}, {'end': 1250.548, 'text': 'But if you think about it,', 'start': 1249.087, 'duration': 1.461}], 'summary': 'Deploying in the cloud offers cost and performance benefits compared to maintaining data centers.', 'duration': 85.995, 'max_score': 1164.553, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1164553.jpg'}, {'end': 1340.937, 'src': 'embed', 'start': 1310.012, 'weight': 0, 'content': [{'end': 1314.716, 'text': 'What happens is cloud platform providers have invested very, very heavily in infrastructure.', 'start': 1310.012, 'duration': 4.704}, {'end': 1322.342, 'text': "So what they've got are very, very large data centers, very highly saleable environments, very secure and very reliable.", 'start': 1315.517, 'duration': 6.825}, {'end': 1324.564, 'text': 'And they provide a number of services.', 'start': 1323.083, 'duration': 1.481}, {'end': 1329.367, 'text': 'So on a cost basis, you can choose how much disk storage you want.', 'start': 1325.404, 'duration': 3.963}, {'end': 1334.832, 'text': 'You can decide how many CPUs, how much computer power you want, what services you require.', 'start': 1330.028, 'duration': 4.804}, {'end': 1340.937, 'text': 'what platforms you want, particular operating systems, and also what applications you require.', 'start': 1336.252, 'duration': 4.685}], 'summary': 'Cloud platform providers offer scalable, secure, and reliable services with customizable options for storage, computing power, platforms, operating systems, and applications.', 'duration': 30.925, 'max_score': 1310.012, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1310012.jpg'}, {'end': 1425.775, 'src': 'embed', 'start': 1400.539, 'weight': 2, 'content': [{'end': 1409.061, 'text': 'They also have edge caching, where information is stored at the boundary, where the users interface to the cloud, rather than deep inside the cloud,', 'start': 1400.539, 'duration': 8.522}, {'end': 1410.862, 'text': 'where the actual data is stored.', 'start': 1409.061, 'duration': 1.801}, {'end': 1415.203, 'text': "So there's a concept of infrastructure as a service or IaaS.", 'start': 1412.242, 'duration': 2.961}, {'end': 1419.732, 'text': 'This is the basic power that is provided by the cloud providers.', 'start': 1416.411, 'duration': 3.321}, {'end': 1421.913, 'text': "So you've got raw computing power.", 'start': 1420.393, 'duration': 1.52}, {'end': 1425.775, 'text': "Choose how many CPUs you've got and what power CPUs you've got.", 'start': 1422.634, 'duration': 3.141}], 'summary': 'Edge caching enhances user experience. iaas provides raw computing power with customizable cpu options.', 'duration': 25.236, 'max_score': 1400.539, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1400539.jpg'}, {'end': 1477.363, 'src': 'embed', 'start': 1447.597, 'weight': 6, 'content': [{'end': 1449.877, 'text': 'So obviously the cloud providers want payment.', 'start': 1447.597, 'duration': 2.28}, {'end': 1454.278, 'text': 'And how does this work? Well, typically payment is by resource.', 'start': 1451.058, 'duration': 3.22}, {'end': 1458.279, 'text': 'So when you use a component, nobody else can use it.', 'start': 1455.279, 'duration': 3}, {'end': 1459.799, 'text': "So you're tying up that resource.", 'start': 1458.319, 'duration': 1.48}, {'end': 1466.261, 'text': "So basically it's fair to pay for components when you're using them or when your resource is held.", 'start': 1460.52, 'duration': 5.741}, {'end': 1469.641, 'text': "Because if you're not using them, nobody else can use them.", 'start': 1467.001, 'duration': 2.64}, {'end': 1473.902, 'text': "But the one thing is it's very easy for the virtual components to be returned to the cloud vendor.", 'start': 1469.961, 'duration': 3.941}, {'end': 1477.363, 'text': 'Basically you choose to have a component and then you release it.', 'start': 1474.122, 'duration': 3.241}], 'summary': 'Cloud providers charge for resources used, ensuring fair payment and easy return of virtual components.', 'duration': 29.766, 'max_score': 1447.597, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1447597.jpg'}], 'start': 1149.969, 'title': 'Cloud computing benefits, challenges, and data centers', 'summary': 'Discusses the benefits of cloud computing, such as cost and performance advantages, challenges of maintaining traditional data centers with high expenses, security concerns, and the need for maintenance and support teams. it also covers challenges of managing data centers, including the high failure rate of hard drives, the need for rapid replacement and maintenance, and the security measures required. additionally, it highlights the advantages of cloud data centers, such as scalability, reliability, and the different service models offered, including iaas, paas, and saas.', 'chapters': [{'end': 1229.083, 'start': 1149.969, 'title': 'Cloud computing benefits and challenges', 'summary': 'Discusses the benefits of cloud computing, including cost and performance advantages, and the challenges of maintaining traditional data centers with high expenses, security concerns, and the need for maintenance and support teams.', 'duration': 79.114, 'highlights': ['The cost and performance benefits of deploying things into the cloud are increasingly important, as traditional data centers are expensive to run and maintain.', 'Traditional data centers require a building, vast quantities of computer hardware, considerable power supplies, and physical security, leading to high expenses.', 'Large data centers consume vast amounts of power and require a good cooling supply, adding to the challenges of maintaining them.', 'Maintenance teams are needed to support everything, as hardware fails fairly frequently and needs to be fixed as soon as possible.', 'Security teams are necessary to check that everybody has the right access and to prevent unauthorized access.']}, {'end': 1584.678, 'start': 1229.583, 'title': 'Challenges and advantages of cloud data centers', 'summary': 'Discusses the challenges of managing data centers, including the high failure rate of hard drives, the need for rapid replacement and maintenance, and the security measures required, while also highlighting the advantages of cloud data centers, such as scalability, reliability, and the different service models offered, including infrastructure as a service (iaas), platform as a service (paas), and software as a service (saas).', 'duration': 355.095, 'highlights': ['The standard SATA hard drive has a mean time between failure of 1.2 million hours, but in a data center with 100,000 hard drives, the statistics suggest an average of two drives failing every day, highlighting the challenge of managing a large number of hard drives.', 'Cloud providers offer highly scalable, secure, and reliable data centers distributed globally, with high-speed networks and edge caching, ensuring high performance and availability, addressing the challenges faced by organizations with geographical data requirements.', 'Cloud providers offer Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) models, providing users with customizable computing power, storage, and networking resources, as well as pre-configured runtime environments and full-blown applications, offering flexibility and cost-effective solutions for various needs.', 'Cloud providers utilize a payment model based on resource usage, allowing users to easily allocate and release components, ensuring fair payment and efficient resource utilization, demonstrating the advantages of cloud-based virtual environments over traditional data centers.']}], 'duration': 434.709, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1149969.jpg', 'highlights': ['Cloud providers offer highly scalable, secure, and reliable data centers distributed globally, with high-speed networks and edge caching, ensuring high performance and availability, addressing the challenges faced by organizations with geographical data requirements.', 'The cost and performance benefits of deploying things into the cloud are increasingly important, as traditional data centers are expensive to run and maintain.', 'Cloud providers offer Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) models, providing users with customizable computing power, storage, and networking resources, as well as pre-configured runtime environments and full-blown applications, offering flexibility and cost-effective solutions for various needs.', 'Traditional data centers require a building, vast quantities of computer hardware, considerable power supplies, and physical security, leading to high expenses.', 'Maintenance teams are needed to support everything, as hardware fails fairly frequently and needs to be fixed as soon as possible.', 'Security teams are necessary to check that everybody has the right access and to prevent unauthorized access.', 'Cloud providers utilize a payment model based on resource usage, allowing users to easily allocate and release components, ensuring fair payment and efficient resource utilization, demonstrating the advantages of cloud-based virtual environments over traditional data centers.', 'The standard SATA hard drive has a mean time between failure of 1.2 million hours, but in a data center with 100,000 hard drives, the statistics suggest an average of two drives failing every day, highlighting the challenge of managing a large number of hard drives.', 'Large data centers consume vast amounts of power and require a good cooling supply, adding to the challenges of maintaining them.']}, {'end': 2634.101, 'segs': [{'end': 1672.825, 'src': 'embed', 'start': 1611.864, 'weight': 0, 'content': [{'end': 1613.766, 'text': "I'll explain why when we get to that point.", 'start': 1611.864, 'duration': 1.902}, {'end': 1619.711, 'text': "So you're going to need a credit card, a debit card, and that's for identification.", 'start': 1614.907, 'duration': 4.804}, {'end': 1621.512, 'text': "Google doesn't want to charge you anything.", 'start': 1619.911, 'duration': 1.601}, {'end': 1626.816, 'text': "In fact, once you set things up, they'll turn around and give you a $300 credit on your account.", 'start': 1622.032, 'duration': 4.784}, {'end': 1628.057, 'text': "That's good for 60 days.", 'start': 1627.397, 'duration': 0.66}, {'end': 1632.019, 'text': "All right, so let's start up Firefox.", 'start': 1629.775, 'duration': 2.244}, {'end': 1638.71, 'text': 'And I find it really important to have a private window.', 'start': 1634.223, 'duration': 4.487}, {'end': 1640.373, 'text': "So let's use that.", 'start': 1639.512, 'duration': 0.861}, {'end': 1652.929, 'text': 'And the reason is that eliminates all sorts of historical cookies or any kind of state that may indicate a previous connection or relationship with Google.', 'start': 1641.38, 'duration': 11.549}, {'end': 1655.811, 'text': 'And it can get things confused.', 'start': 1653.689, 'duration': 2.122}, {'end': 1659.774, 'text': 'So I do strongly recommend that you use this approach.', 'start': 1655.871, 'duration': 3.903}, {'end': 1666.259, 'text': 'console.cloud.google.com slash free trial.', 'start': 1660.435, 'duration': 5.824}, {'end': 1670.002, 'text': 'And that will bring up this screen.', 'start': 1668.18, 'duration': 1.822}, {'end': 1672.825, 'text': 'It says one account, all of Google.', 'start': 1671.124, 'duration': 1.701}], 'summary': 'Setting up google cloud gives $300 credit for 60 days; use private window for setup.', 'duration': 60.961, 'max_score': 1611.864, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1611864.jpg'}, {'end': 1808.666, 'src': 'heatmap', 'start': 1699.313, 'weight': 2, 'content': [{'end': 1702.015, 'text': "You're not going to actually see this being filled out.", 'start': 1699.313, 'duration': 2.702}, {'end': 1703.737, 'text': 'But I will show you here.', 'start': 1702.476, 'duration': 1.261}, {'end': 1706.579, 'text': 'You can say I would like a new Gmail address.', 'start': 1704.397, 'duration': 2.182}, {'end': 1709.341, 'text': 'Follow that link if you want to.', 'start': 1707.86, 'duration': 1.481}, {'end': 1712.404, 'text': 'Otherwise, put in your existing Gmail address.', 'start': 1709.461, 'duration': 2.943}, {'end': 1715.306, 'text': "Okay, so I'll see you in a few minutes.", 'start': 1713.104, 'duration': 2.202}, {'end': 1746.264, 'text': "I have entered that information and I've said next step.", 'start': 1743.18, 'duration': 3.084}, {'end': 1748.927, 'text': 'And now you see a privacy and terms.', 'start': 1746.564, 'duration': 2.363}, {'end': 1752.451, 'text': "You'll want to scroll down and then click I agree.", 'start': 1749.568, 'duration': 2.883}, {'end': 1756.516, 'text': 'And then it says welcome.', 'start': 1755.115, 'duration': 1.401}, {'end': 1760.281, 'text': "Now we're going to continue on to the developer console.", 'start': 1757.718, 'duration': 2.563}, {'end': 1766.852, 'text': 'And it says, try the cloud platform for free.', 'start': 1764.17, 'duration': 2.682}, {'end': 1773.117, 'text': 'Access to all the products, $300 credit, no auto charge after free trial ends.', 'start': 1767.112, 'duration': 6.005}, {'end': 1780.363, 'text': "In fact, what we're going to do is accept this free trial, but we're also going to upgrade, which does put us in the situation where,", 'start': 1773.838, 'duration': 6.525}, {'end': 1783.145, 'text': 'after the trial is over, you will get charged.', 'start': 1780.363, 'duration': 2.782}, {'end': 1793.333, 'text': 'And the reason we do that is that gives us some additional capabilities and increased quote on the cloud, which is important for the class.', 'start': 1784.106, 'duration': 9.227}, {'end': 1797.578, 'text': 'and say agree and continue.', 'start': 1795.777, 'duration': 1.801}, {'end': 1806.224, 'text': "Now it gets to the point where you're going to type in your credit card information.", 'start': 1802.642, 'duration': 3.582}, {'end': 1808.666, 'text': "So I'm going to also have this blank.", 'start': 1806.324, 'duration': 2.342}], 'summary': 'Setting up a new gmail address and accessing developer console with $300 credit, but upgrading may result in charges.', 'duration': 83.832, 'max_score': 1699.313, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1699313.jpg'}, {'end': 1960.793, 'src': 'embed', 'start': 1934.458, 'weight': 4, 'content': [{'end': 1939.665, 'text': "So the way you do that is you go up to the blue bar and you'll see there's My First Project.", 'start': 1934.458, 'duration': 5.207}, {'end': 1942.209, 'text': "We'll go down here and say Create Project.", 'start': 1939.705, 'duration': 2.504}, {'end': 1943.947, 'text': "and you'll get a dialog.", 'start': 1942.947, 'duration': 1}, {'end': 1953.69, 'text': "You're going to use, actually you can use whatever name you'd like, but we suggest that for this work you say devops, D-E-V-O-P-S.", 'start': 1944.608, 'duration': 9.082}, {'end': 1957.832, 'text': "And then you'll notice at the bottom you're given an identifier.", 'start': 1954.291, 'duration': 3.541}, {'end': 1960.793, 'text': 'This is the project name and this is the project ID.', 'start': 1957.892, 'duration': 2.901}], 'summary': "Create a project named 'devops' with an identifier", 'duration': 26.335, 'max_score': 1934.458, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1934458.jpg'}, {'end': 2009.856, 'src': 'embed', 'start': 1983.568, 'weight': 5, 'content': [{'end': 1989.152, 'text': "There's a lot of machinery that Google has to set up, billing, quotas, and that sort of thing.", 'start': 1983.568, 'duration': 5.584}, {'end': 1993.12, 'text': "We're done.", 'start': 1992.779, 'duration': 0.341}, {'end': 1999.979, 'text': 'The next step is optional but strongly recommended, and that is to go in and delete this first project.', 'start': 1993.14, 'duration': 6.839}, {'end': 2009.856, 'text': 'And the reason I recommend that is if you create more than three projects, you risk having your account locked by Google.', 'start': 2000.788, 'duration': 9.068}], 'summary': 'Google recommends deleting the first project to avoid account lock after creating more than three projects.', 'duration': 26.288, 'max_score': 1983.568, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1983568.jpg'}, {'end': 2141.145, 'src': 'embed', 'start': 2106.944, 'weight': 6, 'content': [{'end': 2110.086, 'text': "that's going to be your lab instance.", 'start': 2106.944, 'duration': 3.142}, {'end': 2114.608, 'text': "to create the lab instance, we're going to go over to the compute engine area.", 'start': 2110.086, 'duration': 4.522}, {'end': 2119.536, 'text': "so go down here, say compute engine And notice it says it's getting ready.", 'start': 2114.608, 'duration': 4.928}, {'end': 2121.016, 'text': 'This is going to take a few minutes.', 'start': 2119.596, 'duration': 1.42}, {'end': 2123.077, 'text': "It's setting up networking.", 'start': 2121.136, 'duration': 1.941}, {'end': 2124.158, 'text': "It's setting up billing.", 'start': 2123.137, 'duration': 1.021}, {'end': 2125.338, 'text': "It's setting up quotas.", 'start': 2124.238, 'duration': 1.1}, {'end': 2128.9, 'text': "There's all sorts of background setup that Google needs to make.", 'start': 2125.378, 'duration': 3.522}, {'end': 2132.661, 'text': "It doesn't do this by default because it is a lot of work.", 'start': 2129.62, 'duration': 3.041}, {'end': 2141.145, 'text': "And if a person creates a project for maybe doing big data work or running BigQuery, they're not going to need Compute Engine.", 'start': 2132.882, 'duration': 8.263}], 'summary': 'Creating a lab instance in compute engine takes a few minutes with background setup for networking, billing, and quotas.', 'duration': 34.201, 'max_score': 2106.944, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2106944.jpg'}, {'end': 2247.905, 'src': 'embed', 'start': 2210.637, 'weight': 7, 'content': [{'end': 2213.718, 'text': 'Every bucket has to have a unique name across the whole cloud.', 'start': 2210.637, 'duration': 3.081}, {'end': 2215.679, 'text': "So we'll create that.", 'start': 2214.758, 'duration': 0.921}, {'end': 2217.941, 'text': "It'll come back and say it's fine.", 'start': 2216.099, 'duration': 1.842}, {'end': 2220.383, 'text': "So great, we're in good shape.", 'start': 2218.982, 'duration': 1.401}, {'end': 2226.729, 'text': 'So next what we want to do is copy over an image that exists in another project.', 'start': 2221.304, 'duration': 5.425}, {'end': 2233.875, 'text': "So what we're going to need to do is say gsutil copy from gs colon.", 'start': 2227.369, 'duration': 6.506}, {'end': 2236.317, 'text': 'Now this you must get exactly as I type it.', 'start': 2233.895, 'duration': 2.422}, {'end': 2247.905, 'text': 'It is simply learn hyphen devops hyphen image and we want to copy everything over to our bucket.', 'start': 2236.777, 'duration': 11.128}], 'summary': 'Ensuring unique bucket name, copying image to bucket using gsutil.', 'duration': 37.268, 'max_score': 2210.637, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2210637.jpg'}], 'start': 1584.858, 'title': 'Setting up google cloud platform for devops', 'summary': 'Covers setting up google cloud platform with a $300 credit for 60 days, emphasizing the use of a private window, creating a new gmail address, and outlines the process of creating a compute engine instance for devops with unique configurations and settings.', 'chapters': [{'end': 1752.451, 'start': 1584.858, 'title': 'Setting up google cloud platform', 'summary': 'Covers setting up google cloud platform using a supported browser, private window, and credit card for verification, with a $300 credit for 60 days, emphasizing the importance of using a private window to avoid confusion and recommending creating a new gmail address.', 'duration': 167.593, 'highlights': ['Using a supported browser, private window, and credit card for verification is essential for setting up Google Cloud Platform, with a $300 credit for 60 days.', 'Emphasizing the importance of using a private window to avoid confusion and any historical cookies or state that may indicate a previous connection or relationship with Google.', 'Recommendation to create a new Gmail address and agreement to privacy and terms during the setup process.']}, {'end': 2080.792, 'start': 1755.115, 'title': 'Setting up google cloud platform for devops', 'summary': "Outlines the process of setting up google cloud platform, including activating a 60-day free trial with $300 credit, upgrading the account for additional capabilities, creating a new project called 'devops', and scheduling the deletion of the initial project to avoid account locking after creating more than three projects.", 'duration': 325.677, 'highlights': ['Activating a 60-day free trial with $300 credit and the option to upgrade for additional capabilities. The chapter outlines the process of activating a 60-day free trial with $300 credit and the option to upgrade for additional capabilities.', "Creating a new project called 'devops' with a unique project ID. The process of creating a new project called 'devops' with a unique project ID is explained.", 'Scheduling the deletion of the initial project to avoid account locking after creating more than three projects. The chapter advises scheduling the deletion of the initial project to avoid account locking after creating more than three projects.']}, {'end': 2634.101, 'start': 2081.492, 'title': 'Creating compute engine instance for devops', 'summary': 'Outlines the process of creating a compute engine instance for devops, including setting up networking, billing, and quotas, creating a unique bucket store, copying over an image, and customizing the instance details like location, cpu, memory, and disk type.', 'duration': 552.609, 'highlights': ["Setting up compute engine instance including networking, billing, and quotas The process involves setting up networking, billing, and quotas which takes a few minutes, and it doesn't happen by default as it involves a lot of background setup.", "Creating a unique bucket store and copying over an image The creation of a unique bucket store involves using 'gsutil' program to make a bucket with a unique name and copying over an image, which took a little while to transfer.", "Customizing the compute instance details like location, CPU, memory, and disk type The customization includes selecting the instance's location, specifying the CPU, memory, and disk type, with options to change these settings later if needed."]}], 'duration': 1049.243, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M1584858.jpg', 'highlights': ['Setting up Google Cloud Platform with a $300 credit for 60 days is essential, using a supported browser, private window, and credit card for verification.', 'Emphasizing the importance of using a private window to avoid confusion and any historical cookies or state that may indicate a previous connection or relationship with Google.', 'Creating a new Gmail address and agreeing to privacy and terms during the setup process is recommended.', 'Activating a 60-day free trial with $300 credit and the option to upgrade for additional capabilities is outlined.', "Creating a new project called 'devops' with a unique project ID is explained.", 'Scheduling the deletion of the initial project to avoid account locking after creating more than three projects is advised.', "Setting up compute engine instance involves setting up networking, billing, and quotas, which takes a few minutes and doesn't happen by default.", "Creating a unique bucket store involves using 'gsutil' program to make a bucket with a unique name and copying over an image.", "Customizing the compute instance details like location, CPU, memory, and disk type includes selecting the instance's location, specifying the CPU, memory, and disk type, with options to change these settings later if needed."]}, {'end': 3212.569, 'segs': [{'end': 2706.529, 'src': 'embed', 'start': 2680.598, 'weight': 1, 'content': [{'end': 2686.24, 'text': 'Can people get control of your systems physically? Social engineering, the impact of people.', 'start': 2680.598, 'duration': 5.642}, {'end': 2688.301, 'text': 'External influences such as crackers.', 'start': 2686.82, 'duration': 1.481}, {'end': 2692.485, 'text': 'Also external influences such as eavesdroppers and man-in-the-middle attacks.', 'start': 2689.284, 'duration': 3.201}, {'end': 2694.826, 'text': 'The all familiar viruses and Trojan horses.', 'start': 2692.845, 'duration': 1.981}, {'end': 2700.567, 'text': 'Buffer overflow attacks are particularly nasty and have caused many, many problems over the years.', 'start': 2695.426, 'duration': 5.141}, {'end': 2706.529, 'text': "As of denial of service attacks, they've taken down entire systems and entire organisations.", 'start': 2700.967, 'duration': 5.562}], 'summary': 'Various threats like social engineering, viruses, and denial of service attacks pose risks to systems.', 'duration': 25.931, 'max_score': 2680.598, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2680598.jpg'}, {'end': 2798.671, 'src': 'embed', 'start': 2770.949, 'weight': 0, 'content': [{'end': 2775.13, 'text': 'You need to engage the information security teams enduring development.', 'start': 2770.949, 'duration': 4.181}, {'end': 2783.487, 'text': "They're often seen as people to be avoided, but actually, They're very keen to be talked to because they can solve problems very quickly.", 'start': 2775.77, 'duration': 7.717}, {'end': 2784.507, 'text': 'They know the issues.', 'start': 2783.527, 'duration': 0.98}, {'end': 2792.109, 'text': 'If you go and talk to them early, you can solve problems which will save them headaches later on in the program and make their life easier.', 'start': 2784.587, 'duration': 7.522}, {'end': 2793.93, 'text': "So they're very happy to talk to you early on.", 'start': 2792.169, 'duration': 1.761}, {'end': 2796.131, 'text': 'Security always comes at a cost.', 'start': 2794.51, 'duration': 1.621}, {'end': 2798.671, 'text': 'Whenever you secure a system, you make it harder to use.', 'start': 2796.391, 'duration': 2.28}], 'summary': 'Engage infosec teams early to solve problems quickly, saving time and headaches later.', 'duration': 27.722, 'max_score': 2770.949, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2770949.jpg'}, {'end': 2831.872, 'src': 'embed', 'start': 2805.728, 'weight': 2, 'content': [{'end': 2810.49, 'text': "So there are a number of security principles which help reduce the risks, and we're going to look at these over the next few minutes.", 'start': 2805.728, 'duration': 4.762}, {'end': 2813.512, 'text': 'The first one is called defense in depth.', 'start': 2811.451, 'duration': 2.061}, {'end': 2816.773, 'text': "The idea of this is you've got various layers of defense.", 'start': 2814.352, 'duration': 2.421}, {'end': 2822.836, 'text': 'So the idea is that if somebody compromises the first layer, the second layer and subsequent layers are still holding.', 'start': 2817.273, 'duration': 5.563}, {'end': 2826.326, 'text': 'So an example here shown of a web server.', 'start': 2823.703, 'duration': 2.623}, {'end': 2831.872, 'text': "You've got the internet, which is a place where people are likely to have malicious intent.", 'start': 2827.107, 'duration': 4.765}], 'summary': 'Implementing defense in depth reduces security risks by employing multiple layers of defense to protect against potential compromises.', 'duration': 26.144, 'max_score': 2805.728, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2805728.jpg'}, {'end': 2939.333, 'src': 'embed', 'start': 2913.22, 'weight': 3, 'content': [{'end': 2918.002, 'text': 'The idea is that the fewer entry points into the system there are, the fewer vulnerabilities there are too.', 'start': 2913.22, 'duration': 4.782}, {'end': 2925.485, 'text': "So the analogy here is the armadillo that wraps itself up in its shell so that there's a minimum amount of places where a predator could attack it.", 'start': 2918.382, 'duration': 7.103}, {'end': 2927.486, 'text': 'So, in the case of IT,', 'start': 2925.845, 'duration': 1.641}, {'end': 2935.471, 'text': "we've got things like most organisations do not permit the use of USB memory devices because you can introduce viruses through these things.", 'start': 2927.486, 'duration': 7.985}, {'end': 2939.333, 'text': 'You can also take confidential information out of the site via these devices.', 'start': 2935.671, 'duration': 3.662}], 'summary': 'Minimizing entry points reduces vulnerabilities in it systems, such as usb devices introducing viruses and allowing data leaks.', 'duration': 26.113, 'max_score': 2913.22, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2913220.jpg'}, {'end': 2981.553, 'src': 'embed', 'start': 2952.671, 'weight': 4, 'content': [{'end': 2954.52, 'text': 'We have the concept of fail secure.', 'start': 2952.671, 'duration': 1.849}, {'end': 2956.772, 'text': 'This is the complete opposite of fail safe.', 'start': 2955.023, 'duration': 1.749}, {'end': 2964.682, 'text': "If you have a locked door in, say, a theatre, if there's a fire, the doors will automatically unlock so that people can escape.", 'start': 2957.617, 'duration': 7.065}, {'end': 2966.003, 'text': "So that's a fail safe.", 'start': 2965.002, 'duration': 1.001}, {'end': 2971.707, 'text': 'A fail secure door would actually lock in the case of emergency to prevent people getting in.', 'start': 2966.723, 'duration': 4.984}, {'end': 2974.789, 'text': 'So systems should fail secure.', 'start': 2972.227, 'duration': 2.562}, {'end': 2976.43, 'text': "That's the important thing there.", 'start': 2975.269, 'duration': 1.161}, {'end': 2981.553, 'text': "Think about what happens if you've got a store which is doing online transactions.", 'start': 2976.97, 'duration': 4.583}], 'summary': 'Fail secure locks in emergency, fail safe unlocks. critical for online transactions.', 'duration': 28.882, 'max_score': 2952.671, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2952671.jpg'}, {'end': 3023.52, 'src': 'embed', 'start': 2998.51, 'weight': 5, 'content': [{'end': 3004.793, 'text': 'The idea is you give programs and users the bare minimum amount of access they need to perform their job.', 'start': 2998.51, 'duration': 6.283}, {'end': 3006.013, 'text': 'It greatly improves.', 'start': 3005.073, 'duration': 0.94}, {'end': 3008.014, 'text': 'Least privilege is very important.', 'start': 3006.573, 'duration': 1.441}, {'end': 3012.956, 'text': 'The idea is to give programs and users the minimum amount of access they need to perform their job.', 'start': 3008.574, 'duration': 4.382}, {'end': 3015.217, 'text': 'This greatly improves security and stability.', 'start': 3013.156, 'duration': 2.061}, {'end': 3016.837, 'text': 'It requires less testing.', 'start': 3015.777, 'duration': 1.06}, {'end': 3018.358, 'text': 'It makes deployment easier.', 'start': 3017.277, 'duration': 1.081}, {'end': 3023.52, 'text': "So for example, if you've got a backup system, it needs to be able to read the data it's backing up.", 'start': 3018.698, 'duration': 4.822}], 'summary': 'Implementing least privilege access improves security and stability, requiring less testing and making deployment easier.', 'duration': 25.01, 'max_score': 2998.51, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2998510.jpg'}, {'end': 3143.287, 'src': 'embed', 'start': 3075.318, 'weight': 7, 'content': [{'end': 3078.12, 'text': "They're well published, well known, and everybody can look at them.", 'start': 3075.318, 'duration': 2.802}, {'end': 3082.351, 'text': 'So now the security is not about the secret algorithm.', 'start': 3079.065, 'duration': 3.286}, {'end': 3088.822, 'text': "It's about making sure the encryption keys themselves are very secure, not the algorithms in place.", 'start': 3082.731, 'duration': 6.091}, {'end': 3090.753, 'text': 'The use of modern languages.', 'start': 3089.653, 'duration': 1.1}, {'end': 3096.195, 'text': 'We understand the root cause of many security breaches and language design has changed to make improvements.', 'start': 3091.514, 'duration': 4.681}, {'end': 3098.896, 'text': 'Modern languages make it hard to make mistakes.', 'start': 3096.936, 'duration': 1.96}, {'end': 3105.419, 'text': 'The Rust language aims to eliminate memory allocation failures that allow hacks easily created with C and C++.', 'start': 3099.417, 'duration': 6.002}, {'end': 3108.14, 'text': 'C and C++ were particularly bad for memory leaks.', 'start': 3105.779, 'duration': 2.361}, {'end': 3111.741, 'text': 'The Kotlin language aims to eliminate null pointer errors that can crash systems.', 'start': 3108.44, 'duration': 3.301}, {'end': 3117.283, 'text': "REST-based systems de-emphasize the use for any programming because it's all very much decoupled.", 'start': 3112.301, 'duration': 4.982}, {'end': 3120.997, 'text': 'This is probably one of the most important ones.', 'start': 3119.056, 'duration': 1.941}, {'end': 3121.937, 'text': 'Keep it simple.', 'start': 3121.217, 'duration': 0.72}, {'end': 3124.518, 'text': 'A simple solution has fewer vulnerabilities.', 'start': 3122.157, 'duration': 2.361}, {'end': 3128.719, 'text': 'Once you have a complex solution, you get more complex failure paths.', 'start': 3125.378, 'duration': 3.341}, {'end': 3132.9, 'text': 'A good example is the mail program SendMail.', 'start': 3129.599, 'duration': 3.301}, {'end': 3135.201, 'text': 'In 1996, it ran about 80% of all mail servers.', 'start': 3133.461, 'duration': 1.74}, {'end': 3141.905, 'text': 'But SendMail has a very, very cryptic configuration file.', 'start': 3137.901, 'duration': 4.004}, {'end': 3143.287, 'text': "It's highly symbolic.", 'start': 3142.205, 'duration': 1.082}], 'summary': 'Modern languages like rust and kotlin aim to improve security by eliminating vulnerabilities such as memory allocation failures and null pointer errors, emphasizing the importance of encryption key security and simplicity.', 'duration': 67.969, 'max_score': 3075.318, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3075318.jpg'}, {'end': 3195.796, 'src': 'embed', 'start': 3166.949, 'weight': 6, 'content': [{'end': 3168.55, 'text': "It's just it's very very hard to configure.", 'start': 3166.949, 'duration': 1.601}, {'end': 3172.592, 'text': 'Another important aspect of security is segregation of duty.', 'start': 3169.61, 'duration': 2.982}, {'end': 3179.157, 'text': "If you've got a very critical function make sure that one person can't execute the complete function from end to end.", 'start': 3173.293, 'duration': 5.864}, {'end': 3186.001, 'text': 'What you need to do is divide the function into individual steps and give each step to a separate person or entity.', 'start': 3179.437, 'duration': 6.564}, {'end': 3191.245, 'text': 'So it requires the collaboration of all of the individuals to complete the operation.', 'start': 3186.302, 'duration': 4.943}, {'end': 3195.796, 'text': 'A good example of segregation of duty are the three fates of Greek mythology.', 'start': 3192.253, 'duration': 3.543}], 'summary': 'Segregation of duty enhances security by dividing critical functions among multiple individuals.', 'duration': 28.847, 'max_score': 3166.949, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3166949.jpg'}], 'start': 2635.236, 'title': 'Information security principles and least privilege', 'summary': 'Discusses vital principles of information security, including engaging the information security team early, security threats, and key principles. it also emphasizes least privilege, segregation of duty, and other security best practices, highlighting modern languages and the shift to trust and complete mediation.', 'chapters': [{'end': 2976.43, 'start': 2635.236, 'title': 'Information security principles', 'summary': 'Discusses the vital principles of information security, including the importance of engaging the information security team early, the various security threats to the system, and key security principles such as defense in depth, minimizing attack surfaces, and fail secure.', 'duration': 341.194, 'highlights': ['The importance of engaging the information security team early Engaging the information security team early in the project can solve problems quickly and save headaches later on.', 'Various security threats to the system Security threats include physical access, social engineering, external influences like crackers and eavesdroppers, viruses, denial of service attacks, human error, configuration errors, and malicious employees.', 'Key security principles such as defense in depth Defense in depth involves having various layers of defense to prevent system compromise, with an example given of a web server protected by multiple layers including firewalls.', 'Minimizing attack surfaces The concept emphasizes reducing entry points into the system to minimize vulnerabilities, similar to an armadillo wrapping itself up in its shell to limit attack points.', 'The concept of fail secure Systems should fail secure, meaning they should lock in the case of emergency to prevent unauthorized access.']}, {'end': 3212.569, 'start': 2976.97, 'title': 'Least privilege and security best practices', 'summary': 'Emphasizes the importance of least privilege, segregation of duty, and other security best practices, highlighting the benefits of modern languages, simple solutions, and the shift from security through obscurity to trust and complete mediation.', 'duration': 235.599, 'highlights': ['Least privilege reduces security risks and improves stability, requiring less testing and making deployment easier. Least privilege involves giving programs and users the minimum amount of access they need to perform their job, enhancing security and stability while simplifying testing and deployment.', 'Segregation of duty ensures collaboration and limits individual power, exemplified by the three fates of Greek mythology. Segregation of duty involves dividing critical functions into individual steps distributed among separate entities, requiring collaboration for completion, similar to the roles of the three fates in Greek mythology.', 'Modern languages like Rust and Kotlin aim to enhance security by eliminating vulnerabilities such as memory allocation failures and null pointer errors. Modern languages such as Rust and Kotlin focus on reducing security vulnerabilities by addressing issues like memory allocation failures and null pointer errors, improving overall system security.', 'Emphasis on simple solutions to reduce vulnerabilities and failure paths, demonstrated by the shift from complex mail servers like SendMail to simpler alternatives. The importance of simple solutions is highlighted by the decline of complex systems like SendMail in favor of simpler, more user-friendly alternatives, reducing vulnerabilities and failure paths.', 'Shift from security through obscurity to trust and complete mediation, emphasizing the importance of transparent and secure encryption key management. The shift from relying on security through obscurity to emphasizing transparent and secure encryption key management demonstrates the evolving focus on trust and complete mediation for enhanced security.']}], 'duration': 577.333, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M2635236.jpg', 'highlights': ['Engaging the information security team early can solve problems quickly and save headaches later on.', 'Various security threats include physical access, social engineering, external influences, viruses, denial of service attacks, human error, and configuration errors.', 'Defense in depth involves having various layers of defense to prevent system compromise.', 'Minimizing attack surfaces emphasizes reducing entry points into the system to minimize vulnerabilities.', 'Systems should fail secure, meaning they should lock in the case of emergency to prevent unauthorized access.', 'Least privilege involves giving programs and users the minimum amount of access they need to perform their job, enhancing security and stability while simplifying testing and deployment.', 'Segregation of duty involves dividing critical functions into individual steps distributed among separate entities, requiring collaboration for completion.', 'Modern languages such as Rust and Kotlin focus on reducing security vulnerabilities by addressing issues like memory allocation failures and null pointer errors.', 'The importance of simple solutions is highlighted by the decline of complex systems like SendMail in favor of simpler, more user-friendly alternatives, reducing vulnerabilities and failure paths.', 'The shift from relying on security through obscurity to emphasizing transparent and secure encryption key management demonstrates the evolving focus on trust and complete mediation for enhanced security.']}, {'end': 3563.677, 'segs': [{'end': 3240.753, 'src': 'embed', 'start': 3212.589, 'weight': 1, 'content': [{'end': 3214.651, 'text': "It's important to know the difference.", 'start': 3212.589, 'duration': 2.062}, {'end': 3224.044, 'text': 'Trust is basically where two people have exchanged some information and they know that each person is who they think they are.', 'start': 3216.721, 'duration': 7.323}, {'end': 3226.945, 'text': 'And so no further checking is required.', 'start': 3225.105, 'duration': 1.84}, {'end': 3233.008, 'text': 'Complete mediation is where credentials are checked on every access of the system.', 'start': 3228.146, 'duration': 4.862}, {'end': 3236.051, 'text': 'often on a time basis.', 'start': 3234.85, 'duration': 1.201}, {'end': 3240.753, 'text': 'Typically what happens is a token is generated on initial authentication,', 'start': 3236.211, 'duration': 4.542}], 'summary': 'Trust requires exchanged information, while complete mediation checks credentials on every access.', 'duration': 28.164, 'max_score': 3212.589, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3212589.jpg'}, {'end': 3306.756, 'src': 'embed', 'start': 3259.168, 'weight': 0, 'content': [{'end': 3262.331, 'text': 'This means that the system administrators are constantly resetting passwords.', 'start': 3259.168, 'duration': 3.163}, {'end': 3265.914, 'text': 'So a single sign-on system is an accepted compromise.', 'start': 3262.671, 'duration': 3.243}, {'end': 3270.718, 'text': 'You sign on once and the single sign-on system will authenticate you to any other system.', 'start': 3265.934, 'duration': 4.784}, {'end': 3274.301, 'text': "It's a known security loophole, if you like,", 'start': 3271.418, 'duration': 2.883}, {'end': 3280.145, 'text': "but it's an accepted one because the system isn't completely understood and there are good solutions out there,", 'start': 3274.301, 'duration': 5.844}, {'end': 3284.461, 'text': "and it's considered worthwhile to avoid the complexities of password management.", 'start': 3280.145, 'duration': 4.316}, {'end': 3287.324, 'text': "Don't reinvent the wheel.", 'start': 3286.263, 'duration': 1.061}, {'end': 3289.567, 'text': "If there's an existing solution, use it.", 'start': 3287.765, 'duration': 1.802}, {'end': 3294.973, 'text': 'Writing good, secure software is actually quite difficult,', 'start': 3290.628, 'duration': 4.345}, {'end': 3300.62, 'text': 'and rebuilding software from scratch will almost certainly reinvent previous discovered issues.', 'start': 3294.973, 'duration': 5.647}, {'end': 3304.295, 'text': 'To give an example, The TCP IP stack.', 'start': 3301.621, 'duration': 2.674}, {'end': 3306.756, 'text': 'The Unix stack has been a long..', 'start': 3304.915, 'duration': 1.841}], 'summary': 'Single sign-on system reduces password resets, but introduces security loophole. use existing solutions to avoid software reinvention.', 'duration': 47.588, 'max_score': 3259.168, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3259168.jpg'}, {'end': 3362.094, 'src': 'embed', 'start': 3330.745, 'weight': 4, 'content': [{'end': 3333.146, 'text': 'they tend to choose things which they can easily remember.', 'start': 3330.745, 'duration': 2.401}, {'end': 3342.852, 'text': "So memorable dates, birthdays, people's names, car registration numbers, favourite words, all sorts of things like that,", 'start': 3333.927, 'duration': 8.925}, {'end': 3346.834, 'text': "which are very insecure because they're fairly easily guessed.", 'start': 3342.852, 'duration': 3.982}, {'end': 3351.737, 'text': 'Now, also, passwords are stored as a one-way hash.', 'start': 3347.514, 'duration': 4.223}, {'end': 3362.094, 'text': 'You take the plain text password, apply an algorithm to it, which produces a fixed length number, which is statistically fairly unique for the text.', 'start': 3352.437, 'duration': 9.657}], 'summary': 'People tend to choose easily remembered and insecure passwords, stored as one-way hash.', 'duration': 31.349, 'max_score': 3330.745, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3330745.jpg'}, {'end': 3393.606, 'src': 'embed', 'start': 3371.992, 'weight': 5, 'content': [{'end': 3380.498, 'text': "So there's software such as Crack, which will try a whole bunch of different words based on dictionaries and combinations of words and numbers.", 'start': 3371.992, 'duration': 8.506}, {'end': 3383.88, 'text': 'And they find most common passwords fairly easily.', 'start': 3381.238, 'duration': 2.642}, {'end': 3385.881, 'text': "There's also Rainbow Tables,", 'start': 3384.24, 'duration': 1.641}, {'end': 3393.606, 'text': "which is where you have typically websites where they've pre-calculated hashes of lots of different passwords up to a certain length.", 'start': 3385.881, 'duration': 7.725}], 'summary': 'Software like crack and rainbow tables easily find common passwords.', 'duration': 21.614, 'max_score': 3371.992, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3371992.jpg'}, {'end': 3464.024, 'src': 'embed', 'start': 3436.046, 'weight': 6, 'content': [{'end': 3443.668, 'text': 'This defends against rainbow table attacks because effectively every password needs to be multiplied by the number of possible values of the salt.', 'start': 3436.046, 'duration': 7.622}, {'end': 3445.796, 'text': 'to generate a complete rainbow table.', 'start': 3444.215, 'duration': 1.581}, {'end': 3450.138, 'text': 'There are also very good ways of making secure but memorable passwords.', 'start': 3446.076, 'duration': 4.062}, {'end': 3458.142, 'text': 'One quite easy one is you take two short but unrelated words and put between them numbers and punctuation symbols.', 'start': 3450.478, 'duration': 7.664}, {'end': 3464.024, 'text': 'So like bond 42 exclamation mark frogs is an example of such a password.', 'start': 3458.622, 'duration': 5.402}], 'summary': 'Defending against rainbow table attacks by multiplying passwords with the number of salt values. creating secure, memorable passwords by combining unrelated words with numbers and punctuation.', 'duration': 27.978, 'max_score': 3436.046, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3436046.jpg'}, {'end': 3508.53, 'src': 'embed', 'start': 3481.555, 'weight': 8, 'content': [{'end': 3487.919, 'text': "It's a small electronic device which contains a clock and a random number generator based on a seed.", 'start': 3481.555, 'duration': 6.364}, {'end': 3492.322, 'text': 'So what happens is every minute the device displays a new number.', 'start': 3488.159, 'duration': 4.163}, {'end': 3496.285, 'text': 'The number is actually predictable if you know the algorithm and know the time.', 'start': 3492.462, 'duration': 3.823}, {'end': 3501.092, 'text': 'The server has a clock and the database for the seeds for each of the devices.', 'start': 3496.605, 'duration': 4.487}, {'end': 3508.53, 'text': 'So the server is able to calculate what value is being displayed on any particular device it supports at any one time.', 'start': 3501.513, 'duration': 7.017}], 'summary': 'A small electronic device generates predictable numbers every minute using a seed-based random number generator, with the server able to calculate the displayed value for each device.', 'duration': 26.975, 'max_score': 3481.555, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3481555.jpg'}, {'end': 3572.414, 'src': 'embed', 'start': 3543.84, 'weight': 9, 'content': [{'end': 3546.242, 'text': 'So fingerprints have been commonly used.', 'start': 3543.84, 'duration': 2.402}, {'end': 3547.944, 'text': "They're used at airports a lot these days.", 'start': 3546.282, 'duration': 1.662}, {'end': 3555.91, 'text': 'Retinal scans have also been used at airports, although Heathrow Airport used to have a retinal scan machine, but unfortunately they discontinued it.', 'start': 3548.504, 'duration': 7.406}, {'end': 3560.054, 'text': 'Now face recognition is getting more common and a lot of airports are starting to use that now.', 'start': 3556.131, 'duration': 3.923}, {'end': 3563.677, 'text': "There's voice prints are also used to identify people.", 'start': 3560.314, 'duration': 3.363}, {'end': 3566.969, 'text': 'And also, each individual types in a different way.', 'start': 3564.147, 'duration': 2.822}, {'end': 3572.414, 'text': 'The speed of typing and the timing between the keystrokes is unique to each individual.', 'start': 3567.21, 'duration': 5.204}], 'summary': 'Biometric technologies like fingerprints, retinal scans, face recognition, voice prints, and typing patterns are commonly used at airports for identification.', 'duration': 28.574, 'max_score': 3543.84, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3543840.jpg'}], 'start': 3212.589, 'title': 'Password security and single sign-on', 'summary': 'Covers the difference between trust and complete mediation, the importance of single sign-on systems, the pitfalls of reinventing existing solutions, and the challenges associated with password management. it also discusses securing passwords using one-way hashes, salts, and biometrics such as fingerprints, retinal scans, and voice prints.', 'chapters': [{'end': 3330.147, 'start': 3212.589, 'title': 'Trust vs. complete mediation', 'summary': 'Discusses the difference between trust and complete mediation, the importance of single sign-on systems, and the pitfalls of reinventing existing solutions, emphasizing the significance of secure and efficient software development and the challenges associated with password management.', 'duration': 117.558, 'highlights': ['Single sign-on systems are an accepted compromise, reducing the complexities of password management by authenticating users to multiple systems after a single sign-on operation.', 'Complete mediation involves checking credentials on every access, often on a time basis, whereas trust relies on exchanged information for authentication, eliminating the need for further checking.', 'Reinventing existing solutions can lead to rediscovering previously solved problems, highlighting the difficulty in writing secure software and the importance of leveraging established solutions.', 'The Unix TCP IP stack serves as an example of the stability and reliability of existing solutions, illustrating the pitfalls of re-implementing software from scratch and the rediscovery of past issues.', 'The challenge of password management is evident, with many users having insecure passwords, leading to constant password resets by system administrators.']}, {'end': 3563.677, 'start': 3330.745, 'title': 'Securing and creating memorable passwords', 'summary': 'Discusses the insecurity of easily remembered passwords and the methods of securing passwords, including the use of one-way hashes, salts, and the implementation of secureid for remote access, as well as the use of biometrics such as fingerprints, retinal scans, and voice prints.', 'duration': 232.932, 'highlights': ["The use of easily remembered passwords is insecure, as they can be easily guessed, including memorable dates, birthdays, people's names, car registration numbers, and favorite words. These easily remembered passwords are insecure and easily guessed, including birthdays, names, car registration numbers, and favorite words.", 'Passwords are stored as one-way hashes, generated by applying an algorithm to the plain text password, producing a statistically fairly unique fixed length number, but vulnerable to software like Crack and Rainbow Tables. Passwords are stored as one-way hashes, generated by applying an algorithm to the plain text password, producing a statistically fairly unique fixed length number, but vulnerable to software like Crack and Rainbow Tables.', 'The use of salts in password security involves adding a random number of fixed bits to the password before creating the hash, and then storing the salt with the resulting hash to defend against rainbow table attacks. The use of salts in password security involves adding a random number of fixed bits to the password before creating the hash, and then storing the salt with the resulting hash to defend against rainbow table attacks.', 'Creating secure but memorable passwords can be achieved by combining two short but unrelated words with numbers and punctuation symbols, making it difficult to predict or generate using software. Creating secure but memorable passwords can be achieved by combining two short but unrelated words with numbers and punctuation symbols, making it difficult to predict or generate using software.', 'SecureID is commonly used by many organizations for giving remote access to internal systems. It involves issuing a device with a clock and a random number generator, which displays a new number every minute for user authentication. SecureID is commonly used by many organizations for giving remote access to internal systems, involving a device with a clock and a random number generator for user authentication.', 'Biometrics, such as fingerprints, retinal scans, and voice prints, are used for identification, with increasing use of face recognition at airports. Biometrics, such as fingerprints, retinal scans, and voice prints, are used for identification, with increasing use of face recognition at airports.']}], 'duration': 351.088, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3212589.jpg', 'highlights': ['Single sign-on systems simplify password management by authenticating users to multiple systems after a single sign-on operation.', 'Complete mediation involves checking credentials on every access, while trust relies on exchanged information for authentication.', 'Reinventing existing solutions can lead to rediscovering previously solved problems, highlighting the importance of leveraging established solutions.', 'The challenge of password management is evident, with many users having insecure passwords, leading to constant password resets by system administrators.', 'Easily remembered passwords are insecure and vulnerable to guessing, including birthdays, names, car registration numbers, and favorite words.', 'Passwords are stored as one-way hashes, vulnerable to software like Crack and Rainbow Tables.', 'The use of salts in password security involves adding a random number of fixed bits to the password before creating the hash, defending against rainbow table attacks.', 'Creating secure but memorable passwords can be achieved by combining two short but unrelated words with numbers and punctuation symbols.', 'SecureID involves issuing a device with a clock and a random number generator for user authentication.', 'Biometrics, such as fingerprints, retinal scans, and voice prints, are used for identification, with increasing use of face recognition at airports.']}, {'end': 3984.622, 'segs': [{'end': 3627.259, 'src': 'embed', 'start': 3600.763, 'weight': 0, 'content': [{'end': 3605.286, 'text': 'Engage them early, they can detect potential problems and fix them before it becomes an issue.', 'start': 3600.763, 'duration': 4.523}, {'end': 3607.747, 'text': "Now, as a developer, you're on the front line.", 'start': 3605.446, 'duration': 2.301}, {'end': 3612.07, 'text': 'When it comes to information security, you have to have more access to systems than anybody else.', 'start': 3607.827, 'duration': 4.243}, {'end': 3615.772, 'text': 'You are also writing the code which needs to be secure.', 'start': 3612.93, 'duration': 2.842}, {'end': 3619.794, 'text': 'If you code insecurely, you are going to be the cause of a vulnerability.', 'start': 3615.932, 'duration': 3.862}, {'end': 3627.259, 'text': 'So you need to understand the implications of security and make sure that you think about it at every stage during the development cycle.', 'start': 3619.934, 'duration': 7.325}], 'summary': 'Engage developers early to detect and fix potential security problems, ensuring secure code at every stage.', 'duration': 26.496, 'max_score': 3600.763, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3600763.jpg'}, {'end': 3704.219, 'src': 'embed', 'start': 3663.936, 'weight': 2, 'content': [{'end': 3664.957, 'text': "It's an iterative process.", 'start': 3663.936, 'duration': 1.021}, {'end': 3667.358, 'text': 'First of all, we need to decide what the problem is.', 'start': 3665.357, 'duration': 2.001}, {'end': 3669.68, 'text': 'Now, problem definition is quite difficult.', 'start': 3667.699, 'duration': 1.981}, {'end': 3673.663, 'text': 'We then need to be able to turn the problem into a series of requirements.', 'start': 3670.12, 'duration': 3.543}, {'end': 3679.067, 'text': "And it's important to note that defining requirements is not the same as designing the system.", 'start': 3674.424, 'duration': 4.643}, {'end': 3681.289, 'text': 'Designing the system is really how it works.', 'start': 3679.327, 'duration': 1.962}, {'end': 3684.211, 'text': 'The requirements is purely what it does.', 'start': 3681.729, 'duration': 2.482}, {'end': 3688.795, 'text': 'The main requirements of interest to developers, in particular, are function requirements.', 'start': 3684.932, 'duration': 3.863}, {'end': 3691.816, 'text': 'These are the ones that say what the system actually does.', 'start': 3689.315, 'duration': 2.501}, {'end': 3693.776, 'text': 'Basically, the condition is this.', 'start': 3692.396, 'duration': 1.38}, {'end': 3696.297, 'text': 'We have a process, which at the moment is a black box.', 'start': 3693.936, 'duration': 2.361}, {'end': 3699.598, 'text': "We don't know what's inside the process, and we actually don't care at this stage.", 'start': 3696.317, 'duration': 3.281}, {'end': 3704.219, 'text': "It'll have an initial state, and we apply some kind of input or inputs.", 'start': 3700.258, 'duration': 3.961}], 'summary': 'Iterative process of defining and designing requirements for system development.', 'duration': 40.283, 'max_score': 3663.936, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3663936.jpg'}, {'end': 3806.106, 'src': 'embed', 'start': 3764.131, 'weight': 6, 'content': [{'end': 3766.875, 'text': 'This does not happen at this stage, it happens later in the process.', 'start': 3764.131, 'duration': 2.744}, {'end': 3773.804, 'text': 'But what we need to do is give the association between a functional requirement and what the screen content is going to be.', 'start': 3767.416, 'duration': 6.388}, {'end': 3780.281, 'text': 'So quite commonly, The UI requirements will be in the form of some form of wireframe diagram.', 'start': 3774.545, 'duration': 5.736}, {'end': 3784.085, 'text': 'These are not confused with the final appearance of the screen.', 'start': 3780.882, 'duration': 3.203}, {'end': 3791.353, 'text': 'They just simply show you what information needs to be captured on the user interface in order to execute the functional requirement.', 'start': 3784.405, 'duration': 6.948}, {'end': 3793.162, 'text': 'Integration requirements.', 'start': 3792.102, 'duration': 1.06}, {'end': 3797.564, 'text': 'These identify all the sources of inputs and all the destinations of outputs.', 'start': 3793.442, 'duration': 4.122}, {'end': 3802.965, 'text': 'So every single source or destination needs to have its input and outputs defined.', 'start': 3798.364, 'duration': 4.601}, {'end': 3806.106, 'text': 'We need to know what type of data is flowing across the connection.', 'start': 3803.345, 'duration': 2.761}], 'summary': 'Association between functional requirements and ui shown through wireframe diagrams, integration requirements define data flow.', 'duration': 41.975, 'max_score': 3764.131, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3764131.jpg'}, {'end': 3872.881, 'src': 'embed', 'start': 3844.801, 'weight': 8, 'content': [{'end': 3852.266, 'text': "How many concurrent operations can happen at once? What is the data capacity of the system database? We've got availability.", 'start': 3844.801, 'duration': 7.465}, {'end': 3854.728, 'text': 'Certain metrics are available for availability.', 'start': 3852.587, 'duration': 2.141}, {'end': 3856.489, 'text': 'We have the mean time between failure.', 'start': 3854.888, 'duration': 1.601}, {'end': 3859.211, 'text': 'What is the average time between two things going wrong??', 'start': 3856.749, 'duration': 2.462}, {'end': 3860.992, 'text': "What's the mean time to restore??", 'start': 3859.571, 'duration': 1.421}, {'end': 3862.954, 'text': 'How quickly can we get the system back and running??', 'start': 3861.152, 'duration': 1.802}, {'end': 3865.836, 'text': 'And availability is that fraction, that equation?', 'start': 3863.414, 'duration': 2.422}, {'end': 3872.881, 'text': 'We also have response time, so what is the time difference between an input arriving and the output being delivered.', 'start': 3866.636, 'duration': 6.245}], 'summary': 'System metrics include availability, mean time between failure, mean time to restore, and response time.', 'duration': 28.08, 'max_score': 3844.801, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3844801.jpg'}, {'end': 3944.249, 'src': 'embed', 'start': 3904.927, 'weight': 4, 'content': [{'end': 3911.251, 'text': "So one important thing is when we're looking at requirements is to find the assumptions, even if they're not explicitly stated.", 'start': 3904.927, 'duration': 6.324}, {'end': 3913.453, 'text': 'State them and justify them.', 'start': 3911.812, 'duration': 1.641}, {'end': 3915.918, 'text': 'Assumptions are absolutely everywhere.', 'start': 3914.173, 'duration': 1.745}, {'end': 3919.346, 'text': "We must make sure they're all well documented and justified.", 'start': 3916.439, 'duration': 2.907}, {'end': 3922.334, 'text': 'Jargon is an interesting concept.', 'start': 3920.509, 'duration': 1.825}, {'end': 3931.56, 'text': "The idea of jargon is it's a language or a subset of a language which enables people within a particular domain to communicate accurately together.", 'start': 3923.134, 'duration': 8.426}, {'end': 3935.443, 'text': 'Natural languages such as English are notoriously ambiguous.', 'start': 3932.341, 'duration': 3.102}, {'end': 3939.586, 'text': 'If you insert a comma into a sentence you can completely change its meaning.', 'start': 3936.263, 'duration': 3.323}, {'end': 3944.249, 'text': 'This is why in the legal profession they do not use commas within legal documents.', 'start': 3939.946, 'duration': 4.303}], 'summary': 'Emphasize documenting and justifying assumptions, and the importance of jargon and clarity in communication.', 'duration': 39.322, 'max_score': 3904.927, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3904927.jpg'}], 'start': 3564.147, 'title': 'Engaging information security teams and defining interface and performance requirements', 'summary': 'Emphasizes the importance of engaging information security teams early in the project to prevent vulnerabilities, the iterative process of requirement analysis, and the distinction between defining requirements and designing the system. it also covers interface requirements, including integration and user interface requirements, and performance requirements such as capacity, availability, response time, throughput, and assumptions, emphasizing the need for well-documented and justified assumptions and the importance of unambiguous communication in a domain.', 'chapters': [{'end': 3725.305, 'start': 3564.147, 'title': 'Information security and requirement analysis', 'summary': 'Discusses the importance of engaging information security teams early in the project to prevent vulnerabilities, and emphasizes the iterative process of requirement analysis and the distinction between defining requirements and designing the system.', 'duration': 161.158, 'highlights': ['Engage information security teams early to prevent vulnerabilities by detecting potential problems and fixing them before they become an issue.', 'Developers play a crucial role in information security and need to understand the implications of security at every stage of the development cycle.', 'Requirement analysis is an iterative process involving problem definition and turning it into a series of requirements, distinct from designing the system.', 'Function requirements are of particular interest to developers as they specify what the system actually does.', 'Typing patterns can be used to identify individuals with a great deal of reliability for information security purposes.']}, {'end': 3984.622, 'start': 3726.125, 'title': 'Interface and performance requirements', 'summary': 'Covers interface requirements, including integration and user interface requirements, and performance requirements such as capacity, availability, response time, throughput, and assumptions, emphasizing the need for well-documented and justified assumptions and the importance of unambiguous communication in a domain.', 'duration': 258.497, 'highlights': ['The chapter emphasizes the importance of well-documented and justified assumptions, as assumptions, even if not explicitly stated, can lead to problems if not shared and justified.', 'It discusses the significance of jargon in enabling accurate communication within a domain, highlighting the potential ambiguity in natural languages like English and providing the example of the distinction between jealousy and envy.', 'It explains integration requirements, including the identification of sources and destinations of inputs and outputs, the definition of data flow, protocols, transmission rates, and network requirements, and the need for unambiguous documentation of interfaces when integrating with third-party systems.', "The chapter delineates user interface requirements, emphasizing the definition of content on each screen without specifying the screen's appearance, which is a design issue to be addressed later in the process, and the common use of wireframe diagrams to illustrate the information needed on the user interface to execute functional requirements.", 'It details performance requirements, encompassing capacity (concurrent operations and data capacity), availability (mean time between failure, mean time to restore, and fraction equation), response time, throughput, and the necessity for error-free, timely data passage.']}], 'duration': 420.475, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3564147.jpg', 'highlights': ['Engage information security teams early to prevent vulnerabilities by detecting potential problems and fixing them before they become an issue.', 'Developers play a crucial role in information security and need to understand the implications of security at every stage of the development cycle.', 'Requirement analysis is an iterative process involving problem definition and turning it into a series of requirements, distinct from designing the system.', 'Function requirements are of particular interest to developers as they specify what the system actually does.', 'The chapter emphasizes the importance of well-documented and justified assumptions, as assumptions, even if not explicitly stated, can lead to problems if not shared and justified.', 'It discusses the significance of jargon in enabling accurate communication within a domain, highlighting the potential ambiguity in natural languages like English and providing the example of the distinction between jealousy and envy.', 'It explains integration requirements, including the identification of sources and destinations of inputs and outputs, the definition of data flow, protocols, transmission rates, and network requirements, and the need for unambiguous documentation of interfaces when integrating with third-party systems.', "The chapter delineates user interface requirements, emphasizing the definition of content on each screen without specifying the screen's appearance, which is a design issue to be addressed later in the process, and the common use of wireframe diagrams to illustrate the information needed on the user interface to execute functional requirements.", 'It details performance requirements, encompassing capacity (concurrent operations and data capacity), availability (mean time between failure, mean time to restore, and fraction equation), response time, throughput, and the necessity for error-free, timely data passage.']}, {'end': 5142.8, 'segs': [{'end': 4016.352, 'src': 'embed', 'start': 3985.242, 'weight': 4, 'content': [{'end': 3988.684, 'text': 'Now another issue is slang, which is quite the reverse of jargon.', 'start': 3985.242, 'duration': 3.442}, {'end': 3996.508, 'text': 'Slang is a language between peers which enable them to communicate with each other in public without anybody else outside their peer group understanding.', 'start': 3989.284, 'duration': 7.224}, {'end': 4000.477, 'text': "So it's important that jargon is used correctly.", 'start': 3997.392, 'duration': 3.085}, {'end': 4007.349, 'text': 'Developers must think in the domain to communicate with others, but only use the jargon within the audience that understands it,', 'start': 4001.279, 'duration': 6.07}, {'end': 4009.894, 'text': "and not people who don't work within the same domain as you.", 'start': 4007.349, 'duration': 2.545}, {'end': 4016.352, 'text': "How do you measure the quality of requirements? Well, there's a number of metrics and it's getting the balance right.", 'start': 4010.888, 'duration': 5.464}], 'summary': 'Jargon should be used correctly in domain-specific communication, balancing metrics and audience understanding.', 'duration': 31.11, 'max_score': 3985.242, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3985242.jpg'}, {'end': 4100.238, 'src': 'embed', 'start': 4068.844, 'weight': 0, 'content': [{'end': 4069.885, 'text': "It's very important.", 'start': 4068.844, 'duration': 1.041}, {'end': 4071.366, 'text': 'when you conduct an interview,', 'start': 4069.885, 'duration': 1.481}, {'end': 4078.672, 'text': "you have a very good understanding exactly what you need to know and what information you need to extract from the subject matter expert you're going to interview.", 'start': 4071.366, 'duration': 7.306}, {'end': 4081.698, 'text': 'There are several different ways you can conduct an interview.', 'start': 4079.517, 'duration': 2.181}, {'end': 4083.619, 'text': 'You can have a structured interview.', 'start': 4082.118, 'duration': 1.501}, {'end': 4087.64, 'text': 'You can actually write the questions in advance and maybe share it with the SME in advance.', 'start': 4083.859, 'duration': 3.781}, {'end': 4089.881, 'text': "If you do that, it's like a script.", 'start': 4088.201, 'duration': 1.68}, {'end': 4090.922, 'text': 'You need to stick to it.', 'start': 4090.061, 'duration': 0.861}, {'end': 4096.224, 'text': "It's good for surveys, not so good if you're not really sure what you're trying to find out.", 'start': 4091.702, 'duration': 4.522}, {'end': 4100.238, 'text': 'The unstructured interview is for that second scenario,', 'start': 4096.957, 'duration': 3.281}], 'summary': 'Understanding the need for structured vs unstructured interviews is crucial for effective information extraction.', 'duration': 31.394, 'max_score': 4068.844, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M4068844.jpg'}, {'end': 4336.3, 'src': 'embed', 'start': 4306.879, 'weight': 1, 'content': [{'end': 4315.564, 'text': 'And in UML, the diagramming language, we have certain diagrams which are more associated with architecture than those that are used for design.', 'start': 4306.879, 'duration': 8.685}, {'end': 4318.026, 'text': "So let's look at some architectural patterns.", 'start': 4316.225, 'duration': 1.801}, {'end': 4321.448, 'text': 'The client-server architectural pattern has been around for some time.', 'start': 4318.706, 'duration': 2.742}, {'end': 4327.853, 'text': 'The idea is we have a thick client which communicates across a network with some external data storage.', 'start': 4322.029, 'duration': 5.824}, {'end': 4336.3, 'text': 'The thick client has the user interface, the business logic and the data access layer all in the same unit of functionality.', 'start': 4328.294, 'duration': 8.006}], 'summary': 'Uml diagrams have specific architectural patterns, like the client-server pattern with a thick client handling ui, business logic, and data access.', 'duration': 29.421, 'max_score': 4306.879, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M4306879.jpg'}, {'end': 4649.165, 'src': 'embed', 'start': 4619.434, 'weight': 2, 'content': [{'end': 4624.175, 'text': 'Another architectural model is the 4 plus 1 view, which is quite an interesting concept.', 'start': 4619.434, 'duration': 4.741}, {'end': 4629.877, 'text': 'The idea is that different people and teams have different views of systems.', 'start': 4624.675, 'duration': 5.202}, {'end': 4638.041, 'text': "So, for example, you've got the logical view is how the end user sees a system, which is in terms of its actual functionality.", 'start': 4630.618, 'duration': 7.423}, {'end': 4641.082, 'text': "You've got the development view, which is how developers see it.", 'start': 4638.581, 'duration': 2.501}, {'end': 4644.144, 'text': 'What are the actual software components and how do they interact?', 'start': 4641.483, 'duration': 2.661}, {'end': 4649.165, 'text': "You've got the process view, which is what the actual process is and how they communicate with each other.", 'start': 4644.864, 'duration': 4.301}], 'summary': 'The 4 plus 1 view model presents different perspectives of a system: logical, development, and process views.', 'duration': 29.731, 'max_score': 4619.434, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M4619434.jpg'}, {'end': 4766.367, 'src': 'embed', 'start': 4737.559, 'weight': 3, 'content': [{'end': 4741.621, 'text': 'So how do we do user acceptance testing? Well, first of all, we need a test bed.', 'start': 4737.559, 'duration': 4.062}, {'end': 4744.381, 'text': 'Ideally, this should be a clone of the production environment.', 'start': 4741.981, 'duration': 2.4}, {'end': 4747.562, 'text': 'Any changes in the production environment get mirrored in the test bed.', 'start': 4744.861, 'duration': 2.701}, {'end': 4750.463, 'text': 'This minimizes the risks of compatibility issues.', 'start': 4747.962, 'duration': 2.501}, {'end': 4756.204, 'text': 'If we have a system which passes the acceptance tests and then moves into a production environment which has changed,', 'start': 4750.923, 'duration': 5.281}, {'end': 4757.625, 'text': "then it's not going to work in production.", 'start': 4756.204, 'duration': 1.421}, {'end': 4761.686, 'text': 'We may need to make compromises to satisfy various constraints.', 'start': 4757.925, 'duration': 3.761}, {'end': 4766.367, 'text': "We probably can't simulate the large number of remote users our system may have.", 'start': 4762.086, 'duration': 4.281}], 'summary': 'User acceptance testing requires a mirrored test bed to minimize compatibility risks and accommodate potential constraints.', 'duration': 28.808, 'max_score': 4737.559, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M4737559.jpg'}], 'start': 3985.242, 'title': 'Effective requirements and architecture', 'summary': 'Discusses the importance of using jargon correctly, measuring the quality of requirements, conducting effective interviews with subject matter experts, understanding architecture goals and patterns, and comparing different architectural patterns including client-server, n-tier, and service-oriented architectures.', 'chapters': [{'end': 4523.395, 'start': 3985.242, 'title': 'Effective requirements and architecture', 'summary': 'Discusses the importance of using jargon correctly, measuring the quality of requirements, conducting effective interviews with subject matter experts, understanding architecture goals and patterns, and comparing different architectural patterns including client-server, n-tier, and service-oriented architectures.', 'duration': 538.153, 'highlights': ["Jargon should be used correctly and only within the audience that understands it. It's important to use jargon correctly and only within the audience that understands it to ensure effective communication.", 'Requirements must be testable, complete, clear, consistent, and traceable. Requirements need to be testable, complete, clear, consistent, and traceable to ensure quality and effectiveness.', 'Conducting effective interviews with subject matter experts involves structured and unstructured approaches, open and closed questions, and probing for information. Conducting effective interviews with subject matter experts involves structured and unstructured approaches, open and closed questions, and probing for information to gather accurate and valuable insights.', 'Architecture involves various stakeholders, business goals, IT infrastructure, and the distinction between architecture and design. Architecture involves various stakeholders, business goals, IT infrastructure, and a distinction between architecture and design, with architecture being more strategic and focused on how things fit together.', 'Comparison of different architectural patterns including client-server, n-tier, and service-oriented architectures outlining their advantages and disadvantages. Comparison of different architectural patterns including client-server, n-tier, and service-oriented architectures outlining their advantages and disadvantages for effective decision-making.']}, {'end': 5142.8, 'start': 4523.925, 'title': 'Understanding rest microservices and user acceptance testing', 'summary': 'Details the advantages of rest microservices, the 4 plus 1 architectural view, and the importance of user acceptance testing, emphasizing the need for complete and consistent requirements.', 'duration': 618.875, 'highlights': ['The advantages of REST microservices REST microservices offer scalability, reduced development costs, and separate evolution of components, making it a good foundation for API designs.', 'The 4 plus 1 architectural view The 4 plus 1 view encompasses logical, development, process, and physical views, as well as the use cases, providing a comprehensive understanding of systems from different perspectives.', 'User acceptance testing importance User acceptance tests are essential to ensure correct implementation of functional requirements and should be performed in a test bed mirroring the production environment with sanitized data.']}], 'duration': 1157.558, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/y3aJr6Am30M/pics/y3aJr6Am30M3985242.jpg', 'highlights': ['Conducting effective interviews with subject matter experts involves structured and unstructured approaches, open and closed questions, and probing for information to gather accurate and valuable insights.', 'Comparison of different architectural patterns including client-server, n-tier, and service-oriented architectures outlining their advantages and disadvantages for effective decision-making.', 'The 4 plus 1 view encompasses logical, development, process, and physical views, as well as the use cases, providing a comprehensive understanding of systems from different perspectives.', 'User acceptance tests are essential to ensure correct implementation of functional requirements and should be performed in a test bed mirroring the production environment with sanitized data.', "Jargon should be used correctly and only within the audience that understands it. It's important to use jargon correctly and only within the audience that understands it to ensure effective communication."]}], 'highlights': ['Randolph Cagale has over 40 years of experience in the IT industry, with roles including architect, designer, developer, team mentor, trainer, and consultant. 0.9', 'Phil Edwards emphasizes the importance of building software to the highest possible quality and has extensive experience as a developer and trainer. 0.85', 'DevOps emphasizes collaboration between developers, operations, and QA, focusing on automation and reliability. 0.8', 'The resistance to change and the need for cultural evolution within organizations are addressed, emphasizing the importance of collaboration and adaptability in DevOps culture. 0.75', 'Cloud providers offer highly scalable, secure, and reliable data centers distributed globally, with high-speed networks and edge caching, ensuring high performance and availability, addressing the challenges faced by organizations with geographical data requirements. 0.7', 'Setting up Google Cloud Platform with a $300 credit for 60 days is essential, using a supported browser, private window, and credit card for verification. 0.65', 'Engaging the information security team early can solve problems quickly and save headaches later on. 0.6', 'Single sign-on systems simplify password management by authenticating users to multiple systems after a single sign-on operation. 0.55', 'Engage information security teams early to prevent vulnerabilities by detecting potential problems and fixing them before they become an issue. 0.5', 'Conducting effective interviews with subject matter experts involves structured and unstructured approaches, open and closed questions, and probing for information to gather accurate and valuable insights. 0.45']}