The correct answer is to configure the CodeBuild project to automatically retry the build on failure. This built-in feature directly addresses the need for a codebuild automatic retry on failure solution for flaky tests by re-running the entire build when it fails, without requiring additional infrastructure or custom logic. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this concept tests your ability to distinguish between native retry mechanisms and over-engineered alternatives; a common trap is assuming you need a separate pipeline or CloudWatch Events trigger, but CodeBuild’s own retry configuration is the simplest and most reliable approach. Remember the memory tip: “Built-in beats built-out”—when AWS offers a native retry toggle, use it instead of building custom retry logic.
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
An organization uses AWS CodePipeline to deploy a web application. The pipeline includes a test stage that runs integration tests using AWS CodeBuild. The tests are flaky and sometimes fail due to external dependencies. The team wants to automatically retry failed tests before marking the stage as failed. How should this be achieved?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the CodeBuild project to automatically retry the build on failure.
Option B is correct because the CodeBuild retry feature can automatically retry the build on failure. Option A is wrong because a separate pipeline adds complexity. Option C is wrong because a manual approval doesn't retry tests. Option D is wrong because CloudWatch Events can trigger a retry, but it requires custom logic; the built-in retry is simpler.
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.
✗
Add a manual approval step after the test stage.
Why it's wrong here
Manual approval does not automatically retry tests.
✗
Use Amazon CloudWatch Events to listen for test failures and trigger a new pipeline execution.
Why it's wrong here
This is possible but more complex than using built-in retry.
✓
Configure the CodeBuild project to automatically retry the build on failure.
Why this is correct
CodeBuild supports automatic retries for failed builds.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create a second pipeline that triggers only on test failures.
Why it's wrong here
This adds unnecessary complexity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
SDLC Automation — This question tests SDLC Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure the CodeBuild project to automatically retry the build on failure. — Option B is correct because the CodeBuild retry feature can automatically retry the build on failure. Option A is wrong because a separate pipeline adds complexity. Option C is wrong because a manual approval doesn't retry tests. Option D is wrong because CloudWatch Events can trigger a retry, but it requires custom logic; the built-in retry is simpler.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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