SAA-C03 Design Cost-Optimized Architectures Practice Question
A photo studio stores original project archives in Amazon S3. Objects are read heavily for 14 days after upload, occasionally during the next 11 months, and almost never after one year. The team wants the lowest storage cost while keeping retrieval within minutes during the first year. Which three actions are best? Select three.
⚠ Common exam trap
The trap here is that candidates might choose Glacier Flexible Retrieval for the 14-day transition, overlooking that its retrieval time (minutes to hours) does not meet the 'within minutes' requirement for the first year, whereas Standard-IA provides both cost savings and instant retrieval.
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
✓
Keep new objects in S3 Standard for the first 14 days.
A is correct because S3 Standard is designed for frequently accessed data with low latency and high throughput, making it ideal for the first 14 days when objects are read heavily. After this period, transitioning to S3 Standard-IA reduces storage costs while still providing millisecond retrieval for occasional access during the next 11 months.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Keep new objects in S3 Standard for the first 14 days.
Why this is correct
Correct. Standard is appropriate for the initial hot-access period because the data is read frequently and needs immediate performance. Using a cheaper archive tier too early would increase retrieval latency and likely access costs.
- ✓
Transition objects to S3 Standard-IA after 14 days.
Why this is correct
Correct. Standard-IA fits the long middle period where objects are still retrievable quickly but accessed only occasionally. It lowers storage cost while preserving minutes-level retrieval.
- ✗
Transition objects to S3 Glacier Flexible Retrieval after 14 days.
Why it's wrong here
Incorrect. Glacier Flexible Retrieval is better for archives with less urgent restore needs, but the first year still requires retrieval within minutes. Standard-IA is a better fit for that requirement.
- ✓
Transition objects to S3 Glacier Deep Archive after one year.
Why this is correct
Correct. Deep Archive is the lowest-cost long-term option for data that is almost never read after the first year. It is appropriate once fast retrieval is no longer required.
- ✗
Disable versioning to make the lifecycle rules work correctly.
Why it's wrong here
Incorrect. Versioning is not required to use S3 lifecycle transitions, and disabling it does not produce the requested access pattern or cost model. The savings come from storage-class changes, not versioning status.
When this WOULD be correct
If the question asks for a way to reduce storage costs by preventing accumulation of old versions, disabling versioning could be correct. For example, when objects are frequently updated and old versions are not needed, disabling versioning avoids storing multiple versions.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The SAA-C03 exam frequently reuses these exact scenarios with slightly different constraints.
✓Keep new objects in S3 Standard for the first 14 days.Correct answer▾
Why this is correct
Correct. Standard is appropriate for the initial hot-access period because the data is read frequently and needs immediate performance. Using a cheaper archive tier too early would increase retrieval latency and likely access costs.
✗Disable versioning to make the lifecycle rules work correctly.Wrong answer — click to see why▾
Why this is wrong here
Versioning does not affect lifecycle rules; lifecycle rules work independently of versioning status. Disabling versioning is unnecessary and does not help achieve the lowest storage cost.
★ When this WOULD be the correct answer
If the question asks for a way to reduce storage costs by preventing accumulation of old versions, disabling versioning could be correct. For example, when objects are frequently updated and old versions are not needed, disabling versioning avoids storing multiple versions.
Why candidates choose this
Candidates may mistakenly think that lifecycle rules require versioning to be disabled, or that versioning interferes with transitions, due to confusion about how S3 lifecycle policies interact with versioned buckets.
Analysis generated from the official SAA-C03blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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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About these practice questions
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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.