The correct choice is to configure parallel actions in the test stage and use a custom action to aggregate results. This approach directly addresses the need to reduce pipeline execution time by running tests in parallel across different environments—such as various browsers or operating systems—while still producing a single consolidated report. AWS CodePipeline natively supports parallel actions within a single stage, allowing multiple test suites to execute simultaneously. To aggregate results, you add a post-test custom action that runs only after all parallel actions complete, collecting and merging their outputs into one report. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of CodePipeline’s stage-level parallelism versus sequential actions, which would increase time, or separate pipelines, which add unnecessary complexity. A common trap is choosing batch builds, but those are for CodeBuild’s batch feature, not for orchestrating distinct environments. Memory tip: think “parallel actions, then aggregate” as a two-step recipe for speed without losing visibility.
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.
A large enterprise uses AWS CodePipeline with multiple stages including source, build, test, and deploy. The test stage runs a suite of integration tests that take 30 minutes. The team wants to reduce the overall pipeline execution time by running the test stage in parallel across different test environments (e.g., different browsers, operating systems). However, they also need to aggregate the test results into a single report. Which approach should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure parallel actions in the test stage and use a custom action to aggregate results
CodePipeline supports parallel actions within a stage. You can define multiple test actions (e.g., one for each browser) and run them in parallel. To aggregate results, use a post-test action that runs after all parallel actions complete, or use a custom report generation step. Option C is correct. Option A (sequential) increases time. Option B (separate pipelines) adds complexity. Option D (batch builds) is for CodeBuild batch, but not for different environments.
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.
✗
Create separate pipelines for each test environment
Why it's wrong here
Multiple pipelines are harder to manage and do not aggregate results automatically
✗
Create a sequential test stage that runs each environment one after another
Why it's wrong here
Sequential execution increases total time
✗
Use CodeBuild batch builds with a single buildspec to run tests in parallel
Why it's wrong here
Batch builds are for multiple builds of the same project, not for different test environments
✓
Configure parallel actions in the test stage and use a custom action to aggregate results
Why this is correct
Parallel actions reduce time, and a custom Lambda or CodeBuild action can aggregate reports
Related concept
Read the scenario before looking for a memorised answer.
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 parallel actions in the test stage and use a custom action to aggregate results — CodePipeline supports parallel actions within a stage. You can define multiple test actions (e.g., one for each browser) and run them in parallel. To aggregate results, use a post-test action that runs after all parallel actions complete, or use a custom report generation step. Option C is correct. Option A (sequential) increases time. Option B (separate pipelines) adds complexity. Option D (batch builds) is for CodeBuild batch, but not for different environments.
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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