DEA-C01 Data Security and Governance Practice Question
A data engineer needs to ensure that data stored in Amazon S3 is automatically deleted after 30 days. Which S3 feature should be used?
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 policy
S3 Lifecycle policies can automatically delete objects after a specified time period, such as 30 days. Option B (MFA Delete) requires multi-factor authentication for deletion but does not automate deletion. Option C (Versioning) keeps multiple versions but does not delete. Option D (Object Lock) prevents deletion or modification but does not schedule automatic deletion.
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 Lifecycle policy
Why this is correct
Lifecycle policies can expire objects after 30 days.
- ✗
S3 MFA Delete
Why it's wrong here
MFA delete requires additional authentication, not automatic deletion.
- ✗
S3 Versioning
Why it's wrong here
Versioning keeps multiple versions, not automatic deletion.
- ✗
S3 Object Lock
Why it's wrong here
Object lock prevents deletion, not automatic deletion.
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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JA
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.