DEA-C01 Data Store Management Practice Question
Network Topology
Refer to the exhibit. A data engineer configured the lifecycle policy shown. The 'logs/' prefix contains important audit logs. After 365 days, what happens to the objects?
⚠ Common exam trap
The DEA-C01 exam often tests the distinction between 'expiration' (permanent deletion) and 'transition' (moving to another storage class), and candidates mistakenly assume that expiration implies a transition to a cold storage class like Glacier.
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
✓
Objects are permanently deleted.
The lifecycle policy shown has a single rule that expires objects in the 'logs/' prefix after 365 days. In Amazon S3, an 'expiration' action permanently deletes the objects once the specified number of days has passed since object creation. There is no transition action configured, so objects are not moved to any storage class; they are simply deleted.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Objects are permanently deleted.
Why this is correct
The expiration action with Days: 365 deletes the objects after 365 days.
- ✗
Objects are transitioned to Glacier Deep Archive.
Why it's wrong here
The policy transitions to Glacier, not Glacier Deep Archive.
- ✗
Objects are transitioned to Glacier.
Why it's wrong here
Glacier transition occurs at 90 days, not 365.
- ✗
Objects are transitioned to Standard-IA.
Why it's wrong here
Standard-IA transition occurs at 30 days, not 365.
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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