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In this section of the course,

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we're going to discuss orchestration and automation.

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Now, due to the increasing complexity

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and scale of our modern networks,

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orchestration and automation are not just

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a nice thing to have anymore,

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but they really have become a necessity

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in our modern workplaces.

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Automation is used to reduce the risk of human error,

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it speeds up repetitive tasks,

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and it frees up your network administrators

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so they can focus on more strategic tasks and projects.

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Orchestration, on the other hand,

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will bring together this higher level of stuff

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by coordinating many automated tasks

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across various interconnected systems

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to ensure that complex workflows are being executed smoothly

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and in the correct order.

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Both of these practices allow organizations

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to respond swiftly to new business requirements

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and market changes,

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so you can maintain competitive in the marketplace

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and ensure that you are providing

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a consistent level of service delivery.

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Now, in this section, we're going to be focused on domain one,

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networking concepts, and specifically on Objective 1.8.

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Objective 1.8 states that you must be able

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to summarize evolving use cases

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for modern network environments.

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Now, first, we're going to look at infrastructure as code.

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Infrastructure as code, or IaC,

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is a key practice of DevOps that involves managing

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and provisioning computing infrastructure

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through machine readable definition files

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rather than physical hardware configurations

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or interactive configuration tools.

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Then we're going to discuss when you should automate

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and orchestrate your functions within your network.

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The decision to automate and orchestrate

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really should be made when tasks become repetitive, complex,

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or critical enough to require consistent accuracy

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and efficiency that a manual process simply can't guarantee.

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Next, you're going to learn about the benefits

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of using automation and orchestration.

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Automation and orchestration provides significant benefits

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by streamlining our processes,

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and this helps reduce human error,

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improve your response times,

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and enable higher levels of scalability

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in the management of your network.

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After that, we're going to explore playbooks

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and their use in our networks.

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Playbooks are essentially automated sets of instructions

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that carry out specific processes such as deployment,

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scaling, and self-healing of our applications and systems

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within a given network.

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Then we'll cover upgrades and compliance

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and how automation and orchestration can help us with that.

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Automation and orchestration will facilitate

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upgrades and compliance by ensuring that our changes

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are being implemented consistently

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across all of our systems

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to ensure that we're adhering to any regulatory standards

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without the need for additional manual oversight.

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Next, we're going to look at how we can

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automate our network inventories.

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Automating network inventories

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allows for the real-time visibility

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and tracking of our network resources

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to minimize the risk of discrepancies and outdated records.

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After that, we're going to explore integrations and APIs

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and how they're used in our networks.

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Integrations and APIs allow for disparate systems

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to better communicate and work together

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through the exchange of data

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and being able to execute cross-system workflows or tasks.

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Then we'll discuss source control.

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Now, source control, also known as version control,

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is the practice of tracking

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and managing changes to your code,

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and this allows multiple users

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to work on a project simultaneously,

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and this helps prevent conflicts when you're doing that.

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Because source control is such an important function

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in automation and orchestration,

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I'm also going to provide you with a brief demonstration

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of how you can get started using something like Git,

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which is a source control software

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to oversee any changes to your source code, your scripts,

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and your orchestration files.

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Finally, we'll take a short quiz to see what you learned

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during this section of the course,

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and review your answers to ensure

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you know why the right answers were right

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and the wrong answers were wrong.

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So if you're ready, let's get started with our coverage

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of orchestration and automation

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in this section of the course.