- A
Enable S3 event notifications on the repository to invoke the pipeline.
Why wrong: CodeCommit is not an S3 bucket; S3 events are not applicable.
- B
Add a manual approval action before the build stage.
Why wrong: Manual approval prevents automatic triggering.
- C
Configure the source action to use CodeCommit as the source provider and specify the 'develop' branch.
This sets up a CloudWatch Events rule to start the pipeline on changes to that branch.
- D
Create a CodeBuild webhook on the CodeCommit repository.
Why wrong: CodeBuild webhooks trigger builds, not the pipeline.
Question 1,268 of 1,750
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 development team is using AWS CodeCommit as a source repository and AWS CodePipeline to automate their CI/CD pipeline. The pipeline includes a build stage that runs on AWS CodeBuild. The team wants to automatically trigger the pipeline when changes are pushed to the 'develop' branch of the CodeCommit repository. Which configuration change should be made to the pipeline?
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
✓
Configure the source action to use CodeCommit as the source provider and specify the 'develop' branch.
Option C is correct because CodePipeline's source action can be configured to use CodeCommit as the source provider, and by specifying the 'develop' branch in the source action configuration, the pipeline will automatically start a new execution whenever a change is pushed to that branch. This is the native and recommended way to trigger a pipeline from a CodeCommit repository branch change, without needing additional webhooks or event notifications.
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.
- ✗
Enable S3 event notifications on the repository to invoke the pipeline.
Why it's wrong here
CodeCommit is not an S3 bucket; S3 events are not applicable.
- ✗
Add a manual approval action before the build stage.
Why it's wrong here
Manual approval prevents automatic triggering.
- ✓
Configure the source action to use CodeCommit as the source provider and specify the 'develop' branch.
Why this is correct
This sets up a CloudWatch Events rule to start the pipeline on changes to that branch.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a CodeBuild webhook on the CodeCommit repository.
Why it's wrong here
CodeBuild webhooks trigger builds, not the pipeline.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse CodeBuild webhooks (which trigger a build directly) with CodePipeline's native event-driven triggers, leading them to select Option D, even though CodePipeline does not use webhooks for CodeCommit sources.
Detailed technical explanation
How to think about this question
Under the hood, when you configure a CodeCommit source action in CodePipeline, the pipeline uses Amazon CloudWatch Events (or EventBridge) to detect changes on the specified branch. CodePipeline sets up a CloudWatch Events rule that listens for 'CodeCommit Repository State Change' events filtered by the branch name, and then automatically starts the pipeline execution. This event-driven approach is more efficient than polling and ensures near-instantaneous triggering without additional infrastructure.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this DOP-C02 question test?
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 source action to use CodeCommit as the source provider and specify the 'develop' branch. — Option C is correct because CodePipeline's source action can be configured to use CodeCommit as the source provider, and by specifying the 'develop' branch in the source action configuration, the pipeline will automatically start a new execution whenever a change is pushed to that branch. This is the native and recommended way to trigger a pipeline from a CodeCommit repository branch change, without needing additional webhooks or event notifications.
What should I do if I get this DOP-C02 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: Jul 4, 2026
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