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Design and implement build and release pipelines →hardMultiple ChoiceObjective-mapped

AZ-400 Practice Question: Design and implement build and release pipelines

This AZ-400 practice question tests your understanding of design and implement build and release pipelines. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.

Exhibit

Refer to the exhibit.
```yaml
# azure-pipelines.yml
trigger:
  branches:
    include:
      - main
      - develop

stages:
- stage: Build
  jobs:
  - job: BuildJob
    pool:
      vmImage: ubuntu-latest
    steps:
    - script: echo "Building..."

- stage: Test
  dependsOn: Build
  condition: eq(variables['Build.SourceBranch'], 'refs/heads/develop')
  jobs:
  - job: TestJob
    pool:
      vmImage: ubuntu-latest
    steps:
    - script: echo "Testing..."
```

Refer to the exhibit. A developer pushes a commit to the main branch. Which stages will run?

Question 1hardmultiple choice
Full question →

Exhibit

Refer to the exhibit.
```yaml
# azure-pipelines.yml
trigger:
  branches:
    include:
      - main
      - develop

stages:
- stage: Build
  jobs:
  - job: BuildJob
    pool:
      vmImage: ubuntu-latest
    steps:
    - script: echo "Building..."

- stage: Test
  dependsOn: Build
  condition: eq(variables['Build.SourceBranch'], 'refs/heads/develop')
  jobs:
  - job: TestJob
    pool:
      vmImage: ubuntu-latest
    steps:
    - script: echo "Testing..."
```

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

✓

Only the Build stage.

The exhibit shows a pipeline with a trigger condition set to 'main' for the Build stage only. The Test stage has no trigger condition defined, meaning it will only run if explicitly triggered by a preceding stage or a separate trigger. When a developer pushes a commit to the main branch, only the Build stage is triggered because it is the only stage with a branch filter matching 'main'. The Test stage does not have a trigger, so it will not run automatically.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Only the Test stage.

    Why it's wrong here

    Build runs first; Test does not run.

  • ✓

    Only the Build stage.

    Why this is correct

    Correct: Build runs, Test is skipped due to condition.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    Neither stage.

    Why it's wrong here

    Build stage runs because main is in trigger include.

  • ✗

    Both Build and Test stages.

    Why it's wrong here

    Test stage condition fails because branch is main.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates assume all stages in a pipeline run automatically when a commit is pushed, but Azure Pipelines allows stage-level triggers that can prevent stages from running unless their specific conditions are met.

Detailed technical explanation

How to think about this question

In Azure Pipelines, stage triggers are evaluated independently; a stage without a trigger condition will not run unless it is explicitly invoked by a preceding stage or a pipeline resource trigger. The trigger condition for a stage is defined using the 'trigger' keyword with a branch filter, which only applies to that specific stage. This behavior is distinct from the pipeline-level trigger, which controls when the entire pipeline is queued.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-400 question test?

Design and implement build and release pipelines — This question tests Design and implement build and release pipelines — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Only the Build stage. — The exhibit shows a pipeline with a trigger condition set to 'main' for the Build stage only. The Test stage has no trigger condition defined, meaning it will only run if explicitly triggered by a preceding stage or a separate trigger. When a developer pushes a commit to the main branch, only the Build stage is triggered because it is the only stage with a branch filter matching 'main'. The Test stage does not have a trigger, so it will not run automatically.

What should I do if I get this AZ-400 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 25, 2026

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