DEA-C01 Data Ingestion and Transformation Practice Question
Exhibit
Refer to the exhibit.
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetObject",
"s3:PutObject"
],
"Resource": "arn:aws:s3:::example-bucket/*"
},
{
"Effect": "Allow",
"Action": [
"glue:StartJobRun",
"glue:GetJobRun"
],
"Resource": "*"
}
]
}An IAM policy is attached to an AWS Glue job. The job needs to read from and write to S3 buckets, and also trigger other Glue jobs. The job is failing with an AccessDenied error when trying to write to a bucket named 'example-bucket'. What is the MOST likely cause?
⚠ Common exam trap
Test-takers frequently assume the error is due to a missing action (like s3:PutObject) rather than a resource ARN mismatch, which is a subtle but common IAM misconfiguration that AWS explicitly tests in the DEA-C01 exam.
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 bucket name in the resource ARN does not match the actual bucket name.
The AccessDenied error when writing to 'example-bucket' most likely occurs because the resource ARN in the IAM policy specifies a different bucket name, causing the S3 service to deny the s3:PutObject action. IAM policies require exact ARN matches for resource-based permissions, and a mismatch between the ARN bucket name and the actual bucket name will result in an implicit deny, even if the action is allowed.
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 policy does not include s3:PutObject action.
Why it's wrong here
The policy includes s3:PutObject.
- ✓
The bucket name in the resource ARN does not match the actual bucket name.
Why this is correct
The ARN uses 'example-bucket' but the actual bucket might have a different name.
- ✗
The policy uses a resource ARN with a wildcard, which is not allowed.
Why it's wrong here
Wildcard in S3 ARN is allowed for objects.
- ✗
The policy does not allow Glue actions.
Why it's wrong here
The policy includes glue:StartJobRun and glue:GetJobRun.
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.