DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 data engineer has an IAM policy attached to an IAM role used by an AWS Glue job. The Glue job needs to read from S3 bucket 'data-bucket' and write to the same bucket. The job fails with an access denied error when trying to write to S3. What is the issue?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The policy does not include s3:ListBucket permission, which Glue may need.
The policy allows s3:PutObject on the bucket, but Glue jobs also need permissions on the bucket itself (s3:ListBucket) for certain operations. Also, the resource is correct. However, the most common issue is that the IAM role does not have permission to decrypt the KMS key if the bucket uses SSE-KMS. But the exhibit does not mention KMS. Option A is wrong because the resource is correct. Option B is wrong because the actions are correct. Option C is correct because the policy does not include s3:ListBucket, which may be required by Glue to list objects. Option D is wrong because Glue can assume roles.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 cannot assume the IAM role because of trust policy.
Why it's wrong here
The exhibit does not mention trust issues.
✓
The policy does not include s3:ListBucket permission, which Glue may need.
Why this is correct
Glue may require ListBucket to navigate the bucket.
Related concept
Read the scenario before looking for a memorised answer.
✗
The resource ARN for S3 is missing the bucket-level permission.
Why it's wrong here
The resource includes /* which is correct for object operations.
✗
The actions for S3 are incorrect; s3:PutObject is not sufficient.
Why it's wrong here
s3:PutObject is the correct action for writing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
What to study next
Got this wrong? Here's your next step.
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The policy does not include s3:ListBucket permission, which Glue may need. — The policy allows s3:PutObject on the bucket, but Glue jobs also need permissions on the bucket itself (s3:ListBucket) for certain operations. Also, the resource is correct. However, the most common issue is that the IAM role does not have permission to decrypt the KMS key if the bucket uses SSE-KMS. But the exhibit does not mention KMS. Option A is wrong because the resource is correct. Option B is wrong because the actions are correct. Option C is correct because the policy does not include s3:ListBucket, which may be required by Glue to list objects. Option D is wrong because Glue can assume roles.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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