Azure / Expert / AZ-400
DevOps Engineer Expert
Design delivery that is repeatable, observable and safe to roll back. Connect work items, source, artifacts, tests and releases.
The Expert credential also requires a qualifying prerequisite certification. Azure Administrator Associate is a current route; check Microsoft’s credential page for the applicable prerequisite rules.
THE REVISION PATH
Your topics, in order.
Read. Recall. Explain the alternative.
Git, Work Tracking and Feedback
Trace a business change from work item to commit, test, artifact and release.
YAML Pipelines, Packages and Test Gates
An artifact should carry its identity and evidence from build to deployment.
Progressive Delivery and Database Changes
Control exposure separately from deployment, and make rollback compatible with state.
Pipeline Identity and Supply-Chain Security
A pipeline is a privileged workload; give it a narrow identity and inspect what it consumes.
ARM Templates and Bicep
Declare the desired resources, inspect the proposed change and preserve clear ownership.
Azure Monitor, Logs and Alerts
Metrics quantify, logs explain, traces connect and alerts start a response.
How this guide is organised
Original revision notes arranged around practical decisions. The linked official objectives define the mapped scope; primary documentation supports the explanations. Read each topic, answer without looking, then explain why another option would fail.
- Official exam guide ↗ Scope authority
Revision material supports preparation; it does not guarantee every possible exam question. Check the exam version and official objectives before booking.