DEA-C01 Data Ingestion and Transformation Practice Question
Network Topology
Refer to the exhibit. A CloudFormation stack outputs the Glue job name and S3 bucket names. The Glue job transforms CSV files from the raw bucket to Parquet in the processed bucket. However, the Glue job is failing with an error that it cannot write to the processed bucket. What is the most likely cause?
⚠ Common exam trap
The DEA-C01 exam often tests the misconception that S3 write failures are caused by region mismatches or file format issues, but the actual trap is that candidates overlook the IAM permission layer and attribute the error to non-permission factors like worker type or data format.
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 Glue job does not have permission to write to the processed bucket
The most likely cause is that the Glue job's IAM role lacks the necessary permissions (e.g., s3:PutObject, s3:ListBucket) on the processed bucket. AWS Glue jobs require an IAM role with policies that grant write access to the target S3 bucket; without these permissions, the job fails with a write error. This is a common misconfiguration when the role is scoped only to read from the raw bucket.
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 Glue job does not have permission to write to the processed bucket
Why this is correct
Missing s3:PutObject on processed-bucket.
- ✗
The raw data bucket is in a different region
Why it's wrong here
Would cause read failure, not write.
- ✗
The Glue job is not using the correct worker type
Why it's wrong here
Worker type affects performance, not permissions.
- ✗
The Glue job is using an incorrect file format
Why it's wrong here
Would cause conversion error, not permission error.
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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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.