Question 555 of 1,040
SAA-C03 Design Cost-Optimized Architectures Practice Question
This SAA-C03 practice question tests your understanding of design cost-optimized architectures. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A data analytics company stores large datasets in Amazon S3. The data is accessed frequently for the first 30 days, then accessed rarely but needs to be retrievable within 1 hour for compliance purposes for up to 3 years. After 3 years, the data must be archived for 7 years with retrieval times acceptable up to 12 hours. Which three of the following strategies would optimize storage costs? (Choose three.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"first"Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
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
✓
Use S3 Intelligent-Tiering for automatic cost savings based on access patterns.
The optimal cost-optimization strategy involves using S3 Intelligent-Tiering to automatically move objects between access tiers based on changing patterns, saving costs without manual lifecycle rules. Additionally, transition objects to S3 Standard-IA after 30 days to match reduced access frequency, and use a lifecycle policy to move objects to S3 Glacier Deep Archive after 3 years to meet the 12-hour retrieval requirement for the final 7-year archive. These three strategies optimize storage costs effectively.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the distinction between S3 Glacier Flexible Retrieval and S3 Glacier Deep Archive, where candidates mistakenly choose Deep Archive for the 3-year compliance period, ignoring the 1-hour retrieval requirement that only Flexible Retrieval can meet.
Detailed technical explanation
How to think about this question
S3 Lifecycle policies use transitions based on object age (e.g., 30 days) to move data from S3 Standard to S3 Standard-IA, which reduces storage costs for rarely accessed data while maintaining millisecond retrieval. After 3 years, transitioning to S3 Glacier Flexible Retrieval (formerly Glacier) meets the 1-hour retrieval requirement for compliance, while S3 Glacier Deep Archive after 3 years would exceed the 1-hour retrieval window. The 12-hour retrieval for the final 7-year archive aligns with S3 Glacier Deep Archive's default retrieval time.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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 |
What to study next
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design Cost-Optimized Architectures — This question tests Design Cost-Optimized Architectures — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use S3 Intelligent-Tiering for automatic cost savings based on access patterns. — The optimal cost-optimization strategy involves using S3 Intelligent-Tiering to automatically move objects between access tiers based on changing patterns, saving costs without manual lifecycle rules. Additionally, transition objects to S3 Standard-IA after 30 days to match reduced access frequency, and use a lifecycle policy to move objects to S3 Glacier Deep Archive after 3 years to meet the 12-hour retrieval requirement for the final 7-year archive. These three strategies optimize storage costs effectively.
What should I do if I get this SAA-C03 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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