- A
Amazon EventBridge to schedule a rule every minute
Why wrong: EventBridge scheduled rules can't react to Jira webhooks directly
- B
AWS Lambda with Amazon API Gateway to receive the webhook
Lambda can process the webhook and create the branch via SDK
- C
AWS CodePipeline to poll for new Jira issues
Why wrong: CodePipeline is not designed to poll external systems like Jira
- D
AWS CodeBuild to run a build when a webhook is received
Why wrong: CodeBuild is for build projects, not for receiving webhooks
Question 1,604 of 1,750
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 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
✓
AWS Lambda with Amazon API Gateway to receive the webhook
AWS Lambda with Amazon API Gateway is the correct choice because API Gateway can expose a public HTTPS endpoint that Jira can send webhook POST requests to. The Lambda function then processes the incoming payload, checks for the specific label, and uses the AWS SDK to create a new branch in CodeCommit. This provides a real-time, event-driven integration without polling or scheduled checks.
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
The trap here is that candidates often confuse AWS services that can receive webhooks (API Gateway + Lambda) with services that only react to internal AWS events (EventBridge) or that require polling (scheduled rules), leading them to choose a polling-based or build-based solution that cannot directly create branches in CodeCommit.
Detailed technical explanation
How to think about this question
Under the hood, API Gateway acts as a reverse proxy that receives the HTTP POST from Jira, validates the HMAC signature if configured, and passes the JSON payload to Lambda. The Lambda function uses the boto3 (Python) or equivalent SDK to call the CodeCommit create_branch API, which requires the repository name, branch name, and the commit ID of the source branch (e.g., main). A subtle behavior is that Jira webhooks can send multiple events; the Lambda must parse the issue fields and filter for the specific label to avoid creating branches for unrelated issues.
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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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: AWS Lambda with Amazon API Gateway to receive the webhook — AWS Lambda with Amazon API Gateway is the correct choice because API Gateway can expose a public HTTPS endpoint that Jira can send webhook POST requests to. The Lambda function then processes the incoming payload, checks for the specific label, and uses the AWS SDK to create a new branch in CodeCommit. This provides a real-time, event-driven integration without polling or scheduled checks.
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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