SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A DevOps engineer is troubleshooting an AWS CodePipeline that fails during the Deploy stage. The pipeline deploys a static website to an S3 bucket. The error message indicates 'Access Denied' when putting objects into the bucket. What is the MOST likely cause?
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
✓
The IAM role used by CodePipeline lacks s3:PutObject permission on the bucket.
The pipeline role needs s3:PutObject permission on the bucket. Option B is wrong because S3 bucket policy is not the issue if the pipeline uses a role. Option C is wrong unless the role already has the permission. Option D is wrong because versioning is not required for writes.
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 IAM role used by CodePipeline lacks s3:PutObject permission on the bucket.
Why this is correct
The role needs explicit write permissions to the S3 bucket.
- ✗
The S3 bucket policy denies access from the pipeline's AWS account.
Why it's wrong here
The pipeline uses a role in the same account, so account-level denial is unlikely.
- ✗
The CodeBuild project does not have the necessary environment variables.
Why it's wrong here
Environment variables are not related to S3 permissions.
- ✗
The S3 bucket does not have versioning enabled.
Why it's wrong here
Versioning is not required for PutObject.
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 |
Go deeper
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-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 SAP-C02 exam.