- A
Configure a CodeCommit trigger to start the pipeline on push events to the 'main' branch.
A push event to main (including pull request merges) triggers the pipeline automatically.
- B
Create a manual approval step before deployment and require a pull request merge as a trigger.
Why wrong: Manual approval is not automatic; does not trigger pipeline automatically.
- C
Use a scheduled trigger to run the pipeline every hour and check for changes.
Why wrong: Scheduled triggers are not event-driven and may cause unnecessary builds.
- D
Configure the source stage to use the 'main' branch and enable periodic polling.
Why wrong: Polling will detect any change on main, but also requires manual setup; but it will not differentiate pull request merges from direct pushes.
Triggering CodePipeline on Pull Request Merge
This DVA-C02 practice question tests your understanding of deployment. 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 company is using AWS CodePipeline with a multi-branch strategy. The pipeline includes a source stage from AWS CodeCommit, a build stage using AWS CodeBuild, and a deploy stage using AWS CodeDeploy. The team wants to automatically deploy changes only when a pull request is merged to the 'main' branch. Which configuration should be used?
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 a CodeCommit trigger to start the pipeline on push events to the 'main' branch.
Option A is correct: Configure a CodeCommit trigger to start the pipeline on push events to the 'main' branch. When a pull request is merged to 'main', a push event occurs, which triggers the pipeline automatically. This ensures deployments happen only on merges to 'main'. Option B (manual approval) defeats automation and adds unnecessary delay. Option C (scheduled trigger) is not event-driven and may deploy unchanged code. Option D (periodic polling) is less efficient and still requires manual merge; it does not automatically trigger on PR merges.
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.
- ✓
Configure a CodeCommit trigger to start the pipeline on push events to the 'main' branch.
Why this is correct
A push event to main (including pull request merges) triggers the pipeline automatically.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a manual approval step before deployment and require a pull request merge as a trigger.
Why it's wrong here
Manual approval is not automatic; does not trigger pipeline automatically.
- ✗
Use a scheduled trigger to run the pipeline every hour and check for changes.
Why it's wrong here
Scheduled triggers are not event-driven and may cause unnecessary builds.
- ✗
Configure the source stage to use the 'main' branch and enable periodic polling.
Why it's wrong here
Polling will detect any change on main, but also requires manual setup; but it will not differentiate pull request merges from direct pushes.
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 DVA-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.
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FAQ
Questions learners often ask
What does this DVA-C02 question test?
Deployment — This question tests Deployment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Configure a CodeCommit trigger to start the pipeline on push events to the 'main' branch. — Option A is correct: Configure a CodeCommit trigger to start the pipeline on push events to the 'main' branch. When a pull request is merged to 'main', a push event occurs, which triggers the pipeline automatically. This ensures deployments happen only on merges to 'main'. Option B (manual approval) defeats automation and adds unnecessary delay. Option C (scheduled trigger) is not event-driven and may deploy unchanged code. Option D (periodic polling) is less efficient and still requires manual merge; it does not automatically trigger on PR merges.
What should I do if I get this DVA-C02 question wrong?
Identify which DVA-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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on DVA-C02
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is using AWS CodeBuild to compile and test code before deploying to Amazon S3. The build process must be triggered automatically whenever a developer pushes code to the 'main' branch of an AWS CodeCommit repository. Which resource should be used to trigger the build?
easy- ✓ A.Use AWS CodePipeline with a source stage that connects to the CodeCommit repository and a build stage that invokes the CodeBuild project.
- B.Set up an AWS CodeDeploy trigger to start the build when a deployment is created.
- C.Configure an Amazon S3 event notification to invoke the CodeBuild project when a new object is created.
- D.Create an Amazon CloudWatch Events rule that triggers the CodeBuild project when a repository event occurs.
Why A: Option A is correct because AWS CodePipeline is the recommended service for building a CI/CD pipeline. You can configure a source stage that connects to the CodeCommit repository and a build stage that invokes the CodeBuild project. When a developer pushes code to the 'main' branch, CodePipeline automatically detects the change and triggers the build. Option B is incorrect because CodeDeploy triggers are for deployments, not for initiating builds from a source repository. Option C is incorrect because S3 event notifications are used with S3 buckets, not CodeCommit repositories. Option D is incorrect because while a CloudWatch Events rule could be used to trigger CodeBuild on repository events, CodePipeline provides a more integrated and straightforward CI/CD solution; the question asks for 'which resource should be used', and CodePipeline is the intended resource.
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Last reviewed: Jun 20, 2026
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