AZ-400 Study Guide 2026
Everything you need to pass the AZ-400 exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 AZ-400 Exam Format at a Glance
📚 AZ-400 Topics to Study (92)
✍️ Sample AZ-400 Questions & Answers
1. What role does peer review play in the AZ-400 design process?
Peer review is a valuable quality control mechanism that provides independent verification of design work, catches errors that the original designer might overlook, and enhances overall quality through diverse perspectives and expertise.
2. What is the key benefit of using release variables scoped to a specific stage in Azure Pipelines?
Stage-scoped variables let you define environment-specific values (e.g., connection strings, URLs) that override pipeline-level variables only within that stage.
3. Which Azure DevOps concept tracks deployment records, approvals, and health checks for a group of resources such as a Kubernetes namespace?
An Azure DevOps environment represents a deployment target (like a K8s namespace or VM group) and records all deployments, approvals, and checks against it.
4. In Azure Pipelines, which variable scope takes the highest precedence when the same variable is defined at multiple levels?
Queue-time (run-time) variables set when manually triggering a pipeline override all other variable scopes including stage and job definitions.
5. A container in your AKS pod fails its readiness probe repeatedly. What is the immediate effect on traffic routing?
A failing readiness probe causes Kubernetes to remove the pod from the Service's endpoint slice, stopping traffic from reaching it without restarting the container.
6. What is the effect of setting 'trigger: none' in an Azure Pipelines YAML file?
Setting 'trigger: none' disables all automatic CI triggers, requiring the pipeline to be run manually, via the API, or through a pipeline resource trigger.