Your team notices that a specific test fails intermittently in the CI pipeline, causing frequent pipeline failures. You need to identify the root cause and improve pipeline reliability. What should you do first?

Analyze the test results and logs from recent runs to identify patterns.

Increase the test timeout to reduce flakiness.

Run the test in a separate pipeline to isolate it.

Disable the flaky test to keep the pipeline green.

Which action is required to enforce a retention policy on pipeline artifacts in Azure Pipelines?

Configuring the retention policy in the pipeline settings or YAML

Creating a service hook to delete artifacts

Manually deleting artifacts after each run

Using a custom script in every pipeline

A development team reports that their CI pipeline frequently fails because the unit test job times out at 60 minutes. The tests are independent and run on a single agent. The team wants to improve pipeline reliability and performance without reducing test coverage. What should you configure?

Move the test job to a larger agent with more memory.

Disable the flaky tests that are causing the timeout.

Increase the pipeline timeout to 120 minutes so the tests have more time to complete.

Run the unit tests in parallel across multiple agents by splitting the test suite into shards.

In Azure Pipelines, which option helps reduce cost by allowing jobs to run on machines that are not always on, such as spot instances or self-hosted agents that are deallocated when idle?

Using Microsoft-hosted agents with pay-as-you-go billing

Using self-hosted agents with elastic scaling

Increasing the pipeline timeout

Which technique is commonly used to reduce pipeline execution time by running independent jobs in parallel?

Using a single job with many steps

Using multiple jobs that run concurrently

Using multiple stages with dependencies

Using a single stage with sequential jobs

Microsoft Certified:DevOps Engineer Expert

Domain 3Objective 6

Maintain Pipelines AZ-400 Practice Questions (Page 6)

Part of the Design and implement build and release pipelines domain, which makes up ~41% of our current practice bank. Microsoft does not publish an official question count, but from its 140-minute exam (~55–95 total, ~23–39 in this domain), expect 4–7 from this objective — we provide 41 practice questions to prepare you well beyond it. (estimate)

41questions here

9free pages

9concepts

Questions 26–30

26application · medium
Your team notices that a specific test fails intermittently in the CI pipeline, causing frequent pipeline failures. You need to identify the root cause and improve pipeline reliability. What should you do first?
Select an answer first
27foundation · easy
Which action is required to enforce a retention policy on pipeline artifacts in Azure Pipelines?
Select an answer first
28application · medium
A development team reports that their CI pipeline frequently fails because the unit test job times out at 60 minutes. The tests are independent and run on a single agent. The team wants to improve pipeline reliability and performance without reducing test coverage. What should you configure?
Select an answer first
29foundation · easy
In Azure Pipelines, which option helps reduce cost by allowing jobs to run on machines that are not always on, such as spot instances or self-hosted agents that are deallocated when idle?
Select an answer first
30foundation · easy
Which technique is commonly used to reduce pipeline execution time by running independent jobs in parallel?
Select an answer first

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