Sample Questions from Microsoft DevOps Engineer Expert (AZ-400)

Preview a few questions below — answers are revealed when you take the exam.

1. A team needs to implement a CI/CD pipeline for a microservices architecture. The pipeline must support automated testing, deployment, and rollback capabilities. What approach should they take to ensure the pipeline is efficient and reliable?

   • Implement a monolithic CI/CD pipeline that handles all microservices together, using a single deployment strategy for all services.
   • Create separate CI/CD pipelines for each microservice, ensuring each pipeline is tailored to the specific needs and dependencies of the service.
   • Use a hybrid approach where critical microservices have dedicated pipelines, while less critical services share a common pipeline.
   • Adopt a serverless CI/CD approach where pipeline stages are triggered by events, allowing for dynamic scaling and cost efficiency.

2. Identify the command used in Azure DevOps to trigger a pipeline manually.

   • az pipelines run
   • az pipelines trigger
   • az pipelines start
   • az pipelines manual-trigger

3. Consider the situation where a DevOps team is experiencing frequent merge conflicts in their Git repository. Which method solves it best by minimizing conflicts and ensuring code quality?

   • Implement a feature branching strategy where each feature is developed in a separate branch and merged into the main branch after thorough testing.
   • Use a trunk-based development approach with continuous integration, ensuring all changes are merged into the main branch frequently.
   • Adopt a Git flow strategy where features are developed in feature branches and merged into a develop branch before final integration into the main branch.
   • Enforce strict code review policies and use automated testing to catch issues early in the development cycle.

4. What service in Azure DevOps can be used to store and manage container images?

   • Azure Container Registry
   • Azure Kubernetes Service
   • Azure Container Instances
   • Azure App Service

5. A DevOps engineer needs to configure Azure Pipelines to deploy an application to multiple environments (Dev, Test, Prod). What configuration is most appropriate for ensuring consistency and minimizing errors across environments?

   • Use separate pipelines for each environment with environment-specific variables and stages.
   • Create a single pipeline with environment-specific stages and use variables to manage differences between environments.
   • Manually configure deployment settings for each environment within the pipeline.
   • Use Azure Resource Manager templates to define infrastructure and deploy applications consistently across environments.