Stopping a Multi-Region Deployment as Soon as One Region Fails
You have a multi-stage pipeline that deploys to multiple regions. You want to ensure that if the deployment to one region fails, the pipeline does not proceed to the next region. What is the best way to implement this?
Quick Answer
Chaining stages with dependsOn and a condition: succeeded() on each region's stage is what stops a multi-region rollout the instant one region fails — each stage only proceeds if the region before it deployed successfully, so a failure anywhere in the chain naturally halts progression to every remaining region.
⚠ Common exam trap
Many exam-takers confuse manual approvals (Option B) with automatic failure handling, not realizing that approvals only pause for human input and do not inherently stop the pipeline on a deployment failure.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Define stage dependencies with 'dependsOn' and set 'condition' to 'succeeded()'.
Azure Pipelines allows you to define stage dependencies using 'dependsOn' and control execution flow with 'condition'. By setting each region deployment as a separate stage that depends on the previous region's stage succeeding (condition: 'succeeded()'), the pipeline will automatically halt if any region deployment fails, preventing progression to subsequent regions.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use pipeline decorators to inject error handling steps.
Why it's wrong here
Decorators add steps but do not manage stage dependencies.
- ✗
Add a manual approval between regions.
Why it's wrong here
Manual approvals require human intervention, not automatic stop on failure.
- ✗
Configure each region deployment as a separate stage with no dependencies.
Why it's wrong here
Without dependencies, stages run in parallel and failures are independent.
- ✓
Define stage dependencies with 'dependsOn' and set 'condition' to 'succeeded()'.
Why this is correct
Stage dependencies with conditions ensure that subsequent stages only run if previous stages succeeded.
Go deeper
Related to this question
Learn chapter
Introduction to DevOps and Azure DevOps
Key term
Azure Pipelines
Azure Pipelines is a cloud-based CI/CD service from Microsoft that automatically builds, tests, and deploys code to any platform or cloud.
Key term
Pipeline
A pipeline is an automated series of steps that takes code from development to production, ensuring quality and speed.
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Same concept, more angles
1 more way this is tested on AZ-400
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your release pipeline deploys to multiple Azure regions. You need to ensure that if a deployment to one region fails, the pipeline continues deploying to other regions. Which deployment strategy should you use?
medium- A.Immutable deployment
- ✓ B.Rolling deployment
- C.Blue-green deployment
- D.Canary deployment
Why B: Rolling deployment updates instances gradually across regions. If a deployment to one region fails, the pipeline can continue deploying to other regions because each region is updated independently. Option A (immutable deployment) replaces all instances at once, so a failure would halt the entire deployment. Option C (blue-green) switches all traffic to a new environment; if that environment fails, the whole deployment fails. Option D (canary) routes a small percentage of traffic to a new version and rolls back if issues occur, but it does not ensure continued deployment to other regions upon failure.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AZ-400 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-400 exam.