Key Topics Covered in the AZ-400 Exam The AZ-400 exam is comprehensive and covers a broad range of topics that are crucial for professionals working with Microsoft Azure DevOps solutions. Some of the key areas of focus include:

1. Developing an Instrumentation Strategy Understanding how to monitor and troubleshoot applications is essential for DevOps engineers. The AZ-400 exam tests your ability to implement monitoring strategies using tools like Azure Monitor and Azure Application Insights. This includes configuring alerts, logging, and ensuring that the applications are performing optimally in real-time.

2. Implementing Continuous Integration and Continuous Delivery (CI/CD) A significant portion of the AZ-400 exam focuses on CI/CD practices, which are integral to DevOps. You'll need to demonstrate your ability to set up build and release pipelines, configure automated tests, and ensure that code can be continuously integrated and deployed into production environments. These practices are key to reducing the time between writing code and delivering it to users.

3. Managing Security and Compliance DevOps engineers must ensure that applications are secure and compliant with relevant regulations. The AZ-400 exam covers topics related to implementing security policies, managing secrets, and ensuring that code is scanned for vulnerabilities. You'll also learn how to integrate security into the development lifecycle, ensuring that security issues are detected and addressed early.

4. Collaboration and Communication Effective collaboration between development and operations teams is at the core of DevOps. The exam evaluates your ability to foster collaboration using tools like Azure DevOps, which provide features for version control, work item tracking, and task management. You'll need to understand how to enable communication within teams, ensuring that projects progress smoothly.

5. Implementing Infrastructure as Code (IaC) Infrastructure as Code is a vital DevOps practice that allows teams to define their infrastructure using code, making it repeatable and versioned. The AZ-400 exam assesses your knowledge of tools like Azure Resource Manager (ARM) templates, Terraform, and Azure DevTest Labs. You'll need to know how to automate the provisioning and management of Azure resources using IaC principles.

6. Automating Testing and Quality Assurance The exam also focuses on automating testing processes to ensure high-quality software. You'll be tested on how to implement automated testing strategies, including unit tests, integration tests, and functional tests. Knowing how to integrate these tests into your CI/CD pipeline will help ensure that your software is both high-quality and bug-free.

7. Managing Continuous Delivery and Release Management Release management is another crucial topic in the AZ-400 exam. You'll need to understand how to create and manage release pipelines, promote code between environments, and ensure that new features are deployed in a controlled and predictable manner. You'll also be tested on how to use Azure DevOps tools to manage multiple stages of deployment.

8. Monitoring and Feedback DevOps is not just about deploying code, but also about continuously improving applications and processes. The exam tests your knowledge of how to use monitoring tools to gather feedback and metrics from your applications. This helps teams identify performance bottlenecks, errors, and areas for improvement, ensuring that applications are continuously optimized.

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