SAA-C03 Design Cost-Optimized Architectures Practice Question
A company stores compliance reports in Amazon S3. Objects are written once and rarely accessed. They need to keep the data for 3 years. When retrieval is needed for an audit, the reports can be restored within hours (not minutes). What storage class should the company use for new objects, assuming minimal operational overhead?
⚠ Common exam trap
Many exam-takers confuse 'Glacier Deep Archive' as the cheapest option for long-term storage, but fail to consider the retrieval time constraint of 12–48 hours, which violates the 'within hours' requirement, making S3 Glacier Flexible Retrieval the correct balance of cost and retrieval speed.
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 Glacier Flexible Retrieval
S3 Glacier Flexible Retrieval is the correct choice because it offers retrieval times of minutes to hours (typically 1–5 minutes for expedited, 3–5 hours for standard), which aligns with the 'within hours' requirement. It is designed for data that is rarely accessed but must be retained for long periods (3 years), and it provides a low-cost storage class with minimal operational overhead since objects can be transitioned via lifecycle policies or stored directly.
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 Standard
Why it's wrong here
S3 Standard is optimized for frequent access and is typically more expensive than archival-style storage.
- ✓
S3 Glacier Flexible Retrieval
Why this is correct
Glacier Flexible Retrieval is designed for infrequent access with retrieval typically on the order of hours.
- ✗
S3 Intelligent-Tiering
Why it's wrong here
Intelligent-Tiering can reduce cost based on access patterns, but it is not the clearest match for hour-scale audit retrieval.
- ✗
S3 Glacier Deep Archive
Why it's wrong here
Deep Archive is cheaper but has longer retrieval times, which may conflict with restoring within hours.
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 302 original SAA-C03 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 SAA-C03 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 SAA-C03 exam.