The answer is AWS Lambda with Amazon API Gateway to receive the webhook. This combination is correct because Jira sends HTTP POST requests to an external endpoint, and API Gateway provides that public HTTPS endpoint to capture the webhook, while Lambda executes the logic to create a branch in CodeCommit using the AWS SDK. The core technical concept here is that CodeCommit does not natively listen for external webhooks, so you need a serverless compute layer to translate the incoming event into an SDK call. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of event-driven architecture and service boundaries—many candidates mistakenly choose Amazon EventBridge, but EventBridge ingests AWS service events, not arbitrary external HTTP payloads. A common trap is assuming CodePipeline can handle this, but CodePipeline requires a source action and is designed for CI/CD orchestration, not ad-hoc branch creation from a webhook. Memory tip: think “API Gateway is the door, Lambda is the hand that creates the branch.”
DOP-C02 SDLC Automation Practice Question
This DOP-C02 practice question tests your understanding of sdlc automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 control repository. They want to automate the creation of a new feature branch whenever a developer creates a new Jira issue with a specific label. Which AWS service should be used to listen for Jira webhooks and trigger the branch creation?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Lambda with Amazon API Gateway to receive the webhook
AWS CodeCommit can be managed through AWS CLI or SDK, but the trigger for webhook events is best handled by AWS Lambda, which can be invoked by Amazon API Gateway or directly via HTTP. AWS CodePipeline is for CI/CD pipelines, not for reacting to external webhooks. Amazon EventBridge can also ingest events, but the simplest integration for custom webhooks is Lambda behind API Gateway. Option D is correct because Lambda can execute code to create a branch in CodeCommit via AWS SDK.
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.
✗
Amazon EventBridge to schedule a rule every minute
Why it's wrong here
EventBridge scheduled rules can't react to Jira webhooks directly
✓
AWS Lambda with Amazon API Gateway to receive the webhook
Why this is correct
Lambda can process the webhook and create the branch via SDK
Related concept
Read the scenario before looking for a memorised answer.
✗
AWS CodePipeline to poll for new Jira issues
Why it's wrong here
CodePipeline is not designed to poll external systems like Jira
✗
AWS CodeBuild to run a build when a webhook is received
Why it's wrong here
CodeBuild is for build projects, not for receiving webhooks
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: AWS Lambda with Amazon API Gateway to receive the webhook — AWS CodeCommit can be managed through AWS CLI or SDK, but the trigger for webhook events is best handled by AWS Lambda, which can be invoked by Amazon API Gateway or directly via HTTP. AWS CodePipeline is for CI/CD pipelines, not for reacting to external webhooks. Amazon EventBridge can also ingest events, but the simplest integration for custom webhooks is Lambda behind API Gateway. Option D is correct because Lambda can execute code to create a branch in CodeCommit via AWS SDK.
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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This DOP-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 DOP-C02 exam.
Question Discussion
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