This DVA-C02 practice question tests your understanding of deployment. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 deploying a serverless application using AWS SAM. The developer wants to run integration tests against the deployed API Gateway endpoints before promoting the deployment to production. The developer uses AWS CodePipeline with a canary deployment strategy. How can the developer implement testing in the pipeline?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add a Lambda function as a test action in CodePipeline that runs after the deploy stage and before the final promote.
Option A is correct because CodePipeline can invoke a Lambda function as a test action after the canary deployment. This allows running tests against the canary before full rollout. Option B is wrong because it requires manual step. Option C is wrong because CodeBuild is for build, not test after deployment. Option D is wrong because API Gateway stage variables are not designed for canary testing in this context.
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.
✗
Use AWS CloudFormation stack outputs to get the endpoint URL and manually test.
Why it's wrong here
This is not automated.
✓
Add a Lambda function as a test action in CodePipeline that runs after the deploy stage and before the final promote.
Why this is correct
Lambda can run integration tests against the canary.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use API Gateway stage variables to route a percentage of traffic to the new version and monitor.
Why it's wrong here
This is for traffic shifting, not automated testing.
✗
Configure CodeBuild to run tests after deployment.
Why it's wrong here
CodeBuild runs before deployment typically.
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.
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: Add a Lambda function as a test action in CodePipeline that runs after the deploy stage and before the final promote. — Option A is correct because CodePipeline can invoke a Lambda function as a test action after the canary deployment. This allows running tests against the canary before full rollout. Option B is wrong because it requires manual step. Option C is wrong because CodeBuild is for build, not test after deployment. Option D is wrong because API Gateway stage variables are not designed for canary testing in this context.
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.
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Question Discussion
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