This DOP-C02 practice question tests your understanding of security and compliance. 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 company uses AWS CodePipeline for CI/CD. The security team requires that all code changes be scanned for secrets before deployment. The pipeline consists of a source stage (CodeCommit), a build stage (CodeBuild), and a deploy stage (CodeDeploy). The security team wants to automatically scan for secrets and block the pipeline if any secrets are found. Which THREE actions should the team take? (Choose THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure the build project to fail the build if the scanning tool returns a non-zero exit code.
Option A is correct because using a scanning action in the build stage can catch secrets. Option C is correct because CodeBuild can fail the build if secrets are found, preventing deployment. Option E is correct because IAM permissions are needed for CodeBuild to access the scanning tool. Option B is incorrect because S3 bucket policies are not relevant. Option D is incorrect because post-deployment scanning would not block the pipeline before deployment.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Add a scanning action in the deploy stage to scan after deployment.
Why it's wrong here
Scanning after deployment does not prevent secrets from being deployed.
✓
Configure the build project to fail the build if the scanning tool returns a non-zero exit code.
Why this is correct
A failed build stops the pipeline.
Related concept
Standard ACLs match source addresses.
✓
Add a scanning action in the build stage using a custom action or a third-party action from AWS Marketplace.
Why this is correct
A scanning action can be integrated into the build stage.
Related concept
Standard ACLs match source addresses.
✗
Configure an S3 bucket policy to deny access if secrets are detected.
Why it's wrong here
S3 bucket policies do not scan code for secrets.
✓
Grant the CodeBuild service role permissions to retrieve the scanning tool from an S3 bucket.
Why this is correct
Permissions are required to access the scanning tool.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DOP-C02 ACL questions on filtering logic and placement.
Security and Compliance — This question tests Security and Compliance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Configure the build project to fail the build if the scanning tool returns a non-zero exit code. — Option A is correct because using a scanning action in the build stage can catch secrets. Option C is correct because CodeBuild can fail the build if secrets are found, preventing deployment. Option E is correct because IAM permissions are needed for CodeBuild to access the scanning tool. Option B is incorrect because S3 bucket policies are not relevant. Option D is incorrect because post-deployment scanning would not block the pipeline before deployment.
What should I do if I get this DOP-C02 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DOP-C02 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.