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 team is using AWS CodePipeline with multiple stages: Source, Build, Test, and Deploy. The Deploy stage uses AWS CodeDeploy to deploy to an EC2 Auto Scaling group. The pipeline runs successfully, but the application still serves the old version. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The CodeDeploy deployment group is associated with a different Auto Scaling group than the one serving traffic.
Option A is correct because if the CodeDeploy deployment group is configured to deploy to a different Auto Scaling group, the new revision is deployed to the wrong instances. Option B is incorrect because the pipeline succeeded, so the artifact is not corrupted. Option C is incorrect because a misconfigured load balancer would cause health check issues but not serve the old version. Option D is incorrect because a failed CodeBuild stage would prevent the pipeline from reaching Deploy.
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.
✓
The CodeDeploy deployment group is associated with a different Auto Scaling group than the one serving traffic.
Why this is correct
The deployment goes to the wrong instances, so the live instances are not updated.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The load balancer's target group is not pointing to the correct instances.
Why it's wrong here
This would cause the application to be unreachable, not serve the old version.
✗
The build artifact in the Source stage is corrupted.
Why it's wrong here
If corrupted, the pipeline would likely fail in the Build or Deploy stage.
✗
The CodeBuild stage failed silently and did not produce a new artifact.
Why it's wrong here
A failed CodeBuild stage would cause the pipeline to stop before the Deploy stage.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
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: The CodeDeploy deployment group is associated with a different Auto Scaling group than the one serving traffic. — Option A is correct because if the CodeDeploy deployment group is configured to deploy to a different Auto Scaling group, the new revision is deployed to the wrong instances. Option B is incorrect because the pipeline succeeded, so the artifact is not corrupted. Option C is incorrect because a misconfigured load balancer would cause health check issues but not serve the old version. Option D is incorrect because a failed CodeBuild stage would prevent the pipeline from reaching Deploy.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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