“AZ-400 Designing and Implementing Microsoft DevOps Solutions” is a Microsoft certification exam and corresponding training course that focuses on testing and validating the skills required to design and implement DevOps practices using Microsoft Azure technologies. This certification is part of Microsoft’s Azure certifications track and is targeted towards professionals who work with Azure DevOps and want to enhance their expertise in designing and implementing DevOps solutions.

The AZ-400 exam covers a wide range of topics related to DevOps practices, including:

1. Designing a DevOps Strategy: This includes understanding the concepts of continuous integration, continuous delivery, and continuous deployment. It also involves designing and implementing strategies for application monitoring, feedback loops, and stakeholder engagement.

2. Implementing DevOps Development Processes: This section focuses on setting up version control, implementing branching strategies, and integrating source control repositories with Azure DevOps pipelines.

3. Implementing Continuous Integration: Candidates are tested on creating build pipelines, configuring automated build and deployment triggers, and managing the build process.

4. Implementing Continuous Delivery: This involves creating release pipelines, deploying to different environments, and configuring release approvals and gates.

5. Implementing Dependency Management: Candidates need to demonstrate their ability to manage and version dependencies, such as NuGet packages and npm packages.

6. Implementing Application Infrastructure: This section covers concepts like Infrastructure as Code (IaC) using tools like ARM templates and Azure Resource Manager.

7. Implementing Continuous Feedback: Candidates are tested on setting up monitoring and telemetry systems, implementing feedback loops, and analyzing telemetry to drive application improvements.

8. Implementing Security and Compliance: This includes integrating security and compliance measures into the DevOps practices, such as configuring security policies, performing vulnerability assessments, and implementing role-based access control.

9. Implementing DevOps for Containerized Applications: Candidates need to demonstrate their understanding of containerization technologies like Docker and Kubernetes and their integration with DevOps pipelines.

10. Implementing Azure Kubernetes Service Infrastructure: This section focuses on deploying and managing applications on Azure Kubernetes Service (AKS) using DevOps practices.

The AZ-400 certification is suitable for professionals who are involved in software development, IT operations, and application lifecycle management. It’s designed to validate the skills required to implement modern DevOps practices using Microsoft Azure technologies.