DEA-C01 Data Security and Governance Practice Question
Network Topology
Refer to the exhibit. A data engineer checks the versioning status of an S3 bucket and sees the above output. The bucket contains critical logs that must not be permanently deleted. What should the engineer do to enhance protection against accidental or malicious deletion?
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
✓
Enable MFA Delete on the bucket
Enabling MFA Delete on the bucket requires multi-factor authentication to delete object versions, which adds protection. Versioning is already enabled, so that is not needed. Enabling Object Lock with retention mode is another option, but the question asks for enhancement using the current setup; MFA Delete is a direct enhancement. A lifecycle policy does not prevent deletion. Cross-region replication is for disaster recovery, not deletion protection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable MFA Delete on the bucket
Why this is correct
MFA Delete requires additional authentication to permanently delete versions, protecting against accidental or malicious deletion.
- ✗
Enable versioning on the bucket
Why it's wrong here
Versioning is already enabled.
- ✗
Enable cross-region replication
Why it's wrong here
Replication provides durability but does not prevent deletion of the original objects.
- ✗
Configure a lifecycle policy to expire noncurrent versions
Why it's wrong here
This would delete old versions, not protect against 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
Related to this question
About these practice questions
One of 1,711 original DEA-C01 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
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.