SAP-C02 Design for New Solutions Practice Question
Which TWO design patterns help ensure data durability in Amazon S3?
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 Cross-Region Replication (CRR).
Options A and B are correct. Versioning protects against accidental deletion or overwrite, ensuring data durability. Cross-Region Replication (CRR) replicates objects to another region, protecting against region-level failures and enhancing durability. Option C is incorrect because MFA Delete is a security feature that requires multi-factor authentication to delete objects, but it does not increase the number of copies or protect against data loss. Option D is incorrect because S3 Standard-IA is a storage class designed for infrequently accessed data with lower cost, but it has the same durability as S3 Standard (11 nines) and does not provide additional durability. Option E is incorrect because lifecycle policies manage data lifecycle and cost optimization, not durability; transitioning to Glacier does not increase durability.
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 Cross-Region Replication (CRR).
Why this is correct
Replicates objects to another region for durability against regional failures.
- ✓
Enable S3 Versioning.
Why this is correct
Preserves, retrieves, and restores every version of an object.
- ✗
Enable MFA Delete.
Why it's wrong here
MFA Delete adds security for delete operations, not durability.
- ✗
Use S3 Standard-IA storage class.
Why it's wrong here
IA is for infrequent access, not increased durability.
- ✗
Configure lifecycle policies to transition to Glacier.
Why it's wrong here
Lifecycle policies manage storage cost, not durability.
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 SAP-C02 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 SAP-C02 exam.