DEA-C01 Data Operations and Support Practice Question
Network Topology
Refer to the exhibit. A data engineer runs the command on an object in S3. The engineer expected the object to have a tag 'type=raw' but sees no metadata. What is the likely cause?
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
✓
Object tags are not returned by head-object; use get-object-tagging instead
The head-object command does not return object tags; you must use the get-object-tagging command to retrieve tags. Option B is incorrect because the head-object command succeeds regardless of region, and region does not affect tag visibility. Option C is incorrect because bucket policies can deny access but do not prevent tags from being returned by head-object; they would affect get-object-tagging instead. Option D is incorrect because lifecycle rules do not remove tags from objects; they may transition or expire objects but do not strip metadata.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Object tags are not returned by head-object; use get-object-tagging instead
Why this is correct
Tags are separate from metadata.
- ✗
The S3 bucket is in a different AWS Region
Why it's wrong here
The command would fail if region mismatch.
- ✗
The bucket policy blocks reading tags
Why it's wrong here
head-object would fail entirely if blocked.
- ✗
The object was created without tags because of lifecycle rules
Why it's wrong here
Lifecycle does not remove tags at creation.
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
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