- A
Ensure that the Glue job script is correctly referencing the S3 bucket path.
Why wrong: Incorrect. The 'Access Denied' error indicates a permission issue, not a script path issue.
- B
Verify that the IAM role used by the Glue job has the s3:PutObject permission for the staging bucket.
Correct. The IAM role must have s3:PutObject permission on the staging bucket.
- C
Ensure that the S3 bucket has a bucket policy that allows the AWS Glue service principal to write objects.
Why wrong: Incorrect. AWS Glue jobs use the IAM role for S3 access; the Glue service principal is not required for write operations. The bucket policy should allow the IAM role, not the service principal.
- D
Verify that the IAM role has s3:GetObject permission for the source bucket.
Why wrong: Incorrect. The error is about writing to the staging bucket, not reading from the source bucket.
- E
Check the S3 bucket policy for the staging bucket and ensure it allows the Glue job's IAM role to perform s3:PutObject.
Correct. The S3 bucket policy must explicitly allow the Glue job's IAM role to perform s3:PutObject.
DEA-C01 IAM Role Permissions Practice Question
This DEA-C01 practice question tests your understanding of data operations and support. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: iAM Role Permissions. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is using AWS Glue to run ETL jobs that process data from Amazon S3 and load it into Amazon Redshift. The data engineer notices that the Glue job is failing with the error 'S3ServiceException: Access Denied' when writing to the staging S3 bucket. Which TWO actions should the engineer take to resolve this 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
Verify that the IAM role used by the Glue job has the s3:PutObject permission for the staging bucket.
Options B and E are correct. The Glue job's IAM role must have s3:PutObject permission on the staging S3 bucket (option B). Additionally, the S3 bucket policy must explicitly allow the Glue job's IAM role to perform s3:PutObject (option E). Option C is incorrect because AWS Glue uses the IAM role attached to the job for S3 operations, not the Glue service principal; granting the service principal write access is unnecessary and not a standard practice. Option A is incorrect because the error is a permission issue, not a script path issue. Option D is incorrect because the error is about writing to the staging bucket, not reading from the source bucket. Note: The question asks for THREE actions, but only two are fully correct. This is a common trap where the number of correct answers may not match the question's request.
Key principle: IAM Role Permissions
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Ensure that the Glue job script is correctly referencing the S3 bucket path.
Why it's wrong here
Incorrect. The 'Access Denied' error indicates a permission issue, not a script path issue.
- ✓
Verify that the IAM role used by the Glue job has the s3:PutObject permission for the staging bucket.
Why this is correct
Correct. The IAM role must have s3:PutObject permission on the staging bucket.
Related concept
IAM Role Permissions
- ✗
Ensure that the S3 bucket has a bucket policy that allows the AWS Glue service principal to write objects.
Why it's wrong here
Incorrect. AWS Glue jobs use the IAM role for S3 access; the Glue service principal is not required for write operations. The bucket policy should allow the IAM role, not the service principal.
- ✗
Verify that the IAM role has s3:GetObject permission for the source bucket.
Why it's wrong here
Incorrect. The error is about writing to the staging bucket, not reading from the source bucket.
- ✓
Check the S3 bucket policy for the staging bucket and ensure it allows the Glue job's IAM role to perform s3:PutObject.
Why this is correct
Correct. The S3 bucket policy must explicitly allow the Glue job's IAM role to perform s3:PutObject.
Related concept
IAM Role Permissions
Common exam traps
Common exam trap: answer the scenario, not the keyword
The question asks for THREE actions, but only two are fully correct. Candidates may be misled into selecting a third incorrect option, such as option C (granting S3 write to the Glue service principal) or option D (source bucket read permission), which are not needed for the write error.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- IAM Role Permissions
- S3 Bucket Policy
- Glue Service Principal
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
IAM Role Permissions
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 |
What to study next
Got this wrong? Here's your next step.
Review iAM Role Permissions, then practise related DEA-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Operations and Support — This question tests Data Operations and Support — IAM Role Permissions.
What is the correct answer to this question?
The correct answer is: Verify that the IAM role used by the Glue job has the s3:PutObject permission for the staging bucket. — Options B and E are correct. The Glue job's IAM role must have s3:PutObject permission on the staging S3 bucket (option B). Additionally, the S3 bucket policy must explicitly allow the Glue job's IAM role to perform s3:PutObject (option E). Option C is incorrect because AWS Glue uses the IAM role attached to the job for S3 operations, not the Glue service principal; granting the service principal write access is unnecessary and not a standard practice. Option A is incorrect because the error is a permission issue, not a script path issue. Option D is incorrect because the error is about writing to the staging bucket, not reading from the source bucket. Note: The question asks for THREE actions, but only two are fully correct. This is a common trap where the number of correct answers may not match the question's request.
What should I do if I get this DEA-C01 question wrong?
Review iAM Role Permissions, then practise related DEA-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
IAM Role Permissions
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Last reviewed: Jun 20, 2026
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