- A
Configure CodePipeline to poll the CodeCommit repository every minute.
Why wrong: CodePipeline does not support direct polling of CodeCommit.
- B
Set up a webhook in CodeCommit to notify CodePipeline on push events.
Why wrong: CodeCommit does not support webhooks; it uses CloudWatch Events.
- C
Create an Amazon CloudWatch Events rule that detects changes to the CodeCommit repository and triggers the pipeline.
CloudWatch Events can trigger CodePipeline on repository changes.
- D
Use an SNS topic to send a notification to CodePipeline when a push occurs.
Why wrong: SNS notifications do not directly trigger CodePipeline executions.
Question 959 of 1,616
How to Automatically Trigger CodePipeline on CodeCommit Push
This DVA-C02 practice question tests your understanding of development with aws services. 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 developer is using AWS CodeCommit as a source repository and AWS CodePipeline for CI/CD. The developer wants to automatically trigger a pipeline execution when changes are pushed to the main branch. Which action should the developer take?
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
✓
Create an Amazon CloudWatch Events rule that detects changes to the CodeCommit repository and triggers the pipeline.
Option C is correct because Amazon CloudWatch Events (now Amazon EventBridge) can detect CodeCommit repository state changes, such as push events to a specific branch, and automatically trigger a CodePipeline execution as a target. This is the recommended AWS-native approach for event-driven pipeline triggers without polling or manual webhook configuration.
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 CodePipeline to poll the CodeCommit repository every minute.
Why it's wrong here
CodePipeline does not support direct polling of CodeCommit.
- ✗
Set up a webhook in CodeCommit to notify CodePipeline on push events.
Why it's wrong here
CodeCommit does not support webhooks; it uses CloudWatch Events.
- ✓
Create an Amazon CloudWatch Events rule that detects changes to the CodeCommit repository and triggers the pipeline.
Why this is correct
CloudWatch Events can trigger CodePipeline on repository changes.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use an SNS topic to send a notification to CodePipeline when a push occurs.
Why it's wrong here
SNS notifications do not directly trigger CodePipeline executions.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse CodeCommit with GitHub or Bitbucket, assuming webhooks are available, but AWS CodeCommit relies on CloudWatch Events for event-driven triggers instead.
Detailed technical explanation
How to think about this question
Under the hood, CloudWatch Events/EventBridge uses a rule with an event pattern matching the CodeCommit 'ReferenceCreated' or 'ReferenceUpdated' event for the main branch. When a push occurs, CodeCommit emits an event to the default event bus, and the rule routes it to CodePipeline as a target, starting the pipeline. This approach is serverless, near real-time, and avoids the overhead of polling or managing webhook endpoints.
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 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.
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FAQ
Questions learners often ask
What does this DVA-C02 question test?
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an Amazon CloudWatch Events rule that detects changes to the CodeCommit repository and triggers the pipeline. — Option C is correct because Amazon CloudWatch Events (now Amazon EventBridge) can detect CodeCommit repository state changes, such as push events to a specific branch, and automatically trigger a CodePipeline execution as a target. This is the recommended AWS-native approach for event-driven pipeline triggers without polling or manual webhook configuration.
What should I do if I get this DVA-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
This DVA-C02 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DVA-C02 exam.
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