DEA-C01 Data Store Management Practice Question
A company stores log files in Amazon S3. They want to automatically move logs older than 90 days to S3 Glacier Deep Archive to reduce costs. Which S3 feature should be used?
⚠ Common exam trap
Test-takers frequently confuse S3 Intelligent-Tiering with lifecycle policies, but Intelligent-Tiering does not support age-based transitions to Glacier Deep Archive and is designed for unpredictable access patterns, not fixed retention schedules.
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
✓
S3 Lifecycle configuration
S3 Lifecycle configuration allows you to define rules that automatically transition objects to colder storage classes, such as S3 Glacier Deep Archive, based on age. By setting a rule to move objects older than 90 days to S3 Glacier Deep Archive, you reduce storage costs without manual intervention. This is the correct feature for automating tier-based data lifecycle management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
S3 Intelligent-Tiering
Why it's wrong here
Intelligent-Tiering moves to infrequent access tiers, not Glacier Deep Archive automatically.
- ✓
S3 Lifecycle configuration
Why this is correct
Lifecycle policies can move objects to Glacier Deep Archive after 90 days.
- ✗
S3 Replication
Why it's wrong here
Replication copies objects, does not change storage class.
- ✗
S3 Object Lock
Why it's wrong here
Object Lock prevents deletion, not transitions.
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 |
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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.