- A
Configure the S3 bucket to allow public access
Why wrong: Public access is not required and is insecure.
- B
Add 's3:PutObject' permission to the CodePipeline service role
The pipeline role needs S3 write access for the deploy stage.
- C
Add an S3 bucket policy that grants the CodeBuild service role s3:PutObject access
Why wrong: The deploy stage uses the pipeline role, not the build role.
- D
Verify that the CodeCommit repository has the correct permissions for the pipeline
Why wrong: The source stage succeeded, so CodeCommit permissions are fine.
Question 1,084 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 DevOps team uses AWS CodePipeline to deploy a static website to an Amazon S3 bucket. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild that runs a build tool), and a deploy stage (S3). After a recent code change, the build stage succeeded but the deploy stage failed with the error: 'Access Denied' when uploading artifacts to the S3 bucket. What should the team do to fix the issue?
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
✓
Add 's3:PutObject' permission to the CodePipeline service role
The deploy stage in CodePipeline uses the CodePipeline service role to upload artifacts to the S3 bucket. The error 'Access Denied' indicates that this role lacks the necessary permissions. Adding 's3:PutObject' to the CodePipeline service role grants it the required write access to the S3 bucket, resolving the issue.
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.
- ✗
Configure the S3 bucket to allow public access
Why it's wrong here
Public access is not required and is insecure.
- ✓
Add 's3:PutObject' permission to the CodePipeline service role
Why this is correct
The pipeline role needs S3 write access for the deploy stage.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Add an S3 bucket policy that grants the CodeBuild service role s3:PutObject access
Why it's wrong here
The deploy stage uses the pipeline role, not the build role.
- ✗
Verify that the CodeCommit repository has the correct permissions for the pipeline
Why it's wrong here
The source stage succeeded, so CodeCommit permissions are fine.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is confusing the CodeBuild service role with the CodePipeline service role; candidates often mistakenly add permissions to the CodeBuild role instead of the pipeline role, which does not resolve the deploy-stage access denied error.
Detailed technical explanation
How to think about this question
CodePipeline's deploy action for S3 uses the pipeline's service role (not the CodeBuild role) to perform the upload. The service role must have an IAM policy with 's3:PutObject' and 's3:PutObjectAcl' (if bucket policies require it) on the target bucket. Under the hood, CodePipeline calls the S3 PutObject API using the service role's credentials, and the bucket policy or ACL must allow that principal.
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 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.
Visual reference
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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: Add 's3:PutObject' permission to the CodePipeline service role — The deploy stage in CodePipeline uses the CodePipeline service role to upload artifacts to the S3 bucket. The error 'Access Denied' indicates that this role lacks the necessary permissions. Adding 's3:PutObject' to the CodePipeline service role grants it the required write access to the S3 bucket, resolving the issue.
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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