DEA-C01 Data Operations and Support Practice Question
A data engineer is troubleshooting a failed AWS Glue ETL job that reads from an S3 bucket and writes to an Amazon Redshift table. The job logs show a permission error. Which IAM policy change would resolve 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 redshift:DataAPI access to the Glue job's IAM role
The Glue job's IAM role needs the redshift:DataAPI permission to write to the Redshift table via the Data API. Option A is irrelevant because enabling encryption on the S3 bucket does not resolve permission errors related to Redshift. Option B is incorrect because s3:GetObject is needed for reading from S3, but the error is about writing to Redshift, not reading. Option D is incorrect because attaching an IAM role to the Redshift cluster grants permissions to the cluster itself, not to the Glue job's role; the Glue job's role must have the redshift:DataAPI permission directly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable encryption on the S3 bucket using AWS KMS
Why it's wrong here
Encryption is not related to the permission error.
- ✗
Add s3:GetObject permission to the Glue job's IAM role
Why it's wrong here
Reading from S3 is already working; the error is about writing to Redshift.
- ✓
Add redshift:DataAPI access to the Glue job's IAM role
Why this is correct
Glue needs permission to write to Redshift via the Data API or JDBC.
- ✗
Attach an IAM role with redshift:GetClusterCredentials to the Redshift cluster
Why it's wrong here
The Redshift cluster's IAM role is separate; the Glue job's role needs the permission.
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 |
Go deeper
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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.