DEA-C01 Data Operations and Support Practice Question
A data engineer is troubleshooting a failed Amazon Kinesis Data Firehose delivery stream. The stream is configured to deliver data to an Amazon S3 bucket. The error log shows: 'The destination S3 bucket's bucket policy does not allow the firehose to put objects.' What is the MOST likely 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
✓
The S3 bucket policy does not include an Allow statement for the firehose to put objects.
The error states the bucket policy does not allow the firehose to put objects. The solution is to add an Allow statement in the bucket policy granting the firehose's IAM role permission to execute s3:PutObject. Option A is incorrect because the error is about bucket policy, not ACLs. Option B is incorrect because the error is already about permissions. Option D is incorrect because the issue is at the S3 bucket policy level, not IAM role trust policy.
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 S3 bucket's ACL is configured to deny write access to the firehose.
Why it's wrong here
The error specifically mentions bucket policy, not ACL.
- ✗
The IAM role used by Firehose does not have the necessary permissions.
Why it's wrong here
The error points to bucket policy, not IAM role.
- ✓
The S3 bucket policy does not include an Allow statement for the firehose to put objects.
Why this is correct
The bucket policy must explicitly grant s3:PutObject to the firehose's IAM role.
- ✗
The IAM role's trust policy does not allow Firehose to assume the role.
Why it's wrong here
Trust policy issues would cause a different error (e.g., AssumeRole failure).
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
Related to this question
About these practice questions
This DEA-C01 question is part of Courseiva's 1,711-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-C01 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 DEA-C01 exam.