Why This Cheat Sheet Matters for AZ-400
This cheat sheet covers the most important Docker, Kubernetes & Bicep concepts tested on the AZ-400 (Azure DevOps Engineer Expert) certification exam. It contains 2 sections with 8 key points that you should memorize before exam day. Use this as a quick-reference guide during your final review sessions.
2Sections
8Key Points
Containers
- Multi-stage Docker builds: build stage compiles; runtime stage has minimal image.
- ACR Tasks: automated image builds triggered by code commits or base image updates.
- Helm charts: templated Kubernetes manifests with values.yaml overrides.
- Image scanning: integrate Trivy or Defender for Containers in CI pipelines.
Infrastructure as Code
- Bicep: DSL for ARM templates with modules, parameters, and what-if preview.
- Terraform: multi-cloud IaC with state management and plan/apply workflow.
- Desired State Configuration (DSC): enforce VM configuration compliance.
- IaC in pipelines: validate → plan → apply with manual approval gates.
Practice Docker, Kubernetes & Bicep Questions
Put your knowledge to the test with practice questions.
Azure Quick Reference Tips
Azure services follow consistent naming patterns that help with exam recall. Resource Manager (ARM) templates use JSON, while Bicep provides a cleaner DSL for infrastructure as code. Remember that Azure resources are organised in a hierarchy: Management Groups → Subscriptions → Resource Groups → Resources.