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Quick Answer
The answer is S3 Intelligent-Tiering, combined with a lifecycle policy to transition to S3 Glacier Deep Archive after three years. This is correct because Intelligent-Tiering automatically moves objects between frequent and infrequent access tiers based on changing usage patterns, perfectly handling the first 30 days of frequent access followed by rare access, while a lifecycle rule then archives the data to Glacier Deep Archive for the 7-year compliance period with a 12-hour retrieval window. On the SAA-C03 exam, this scenario tests your understanding of balancing cost optimization with compliance-driven retrieval time requirements—a common trap is choosing manual lifecycle transitions for the rare-access phase, but Intelligent-Tiering avoids that overhead. Remember the key: Intelligent-Tiering for unpredictable access, Glacier Deep Archive for long-term, low-cost archival. Memory tip: "30 days hot, then rare, then deep—Intelligent-Tiering handles the middle, Deep Archive locks the final."
SAA-C03 Design Cost-Optimized Architectures Practice Question
This SAA-C03 practice question tests your understanding of design cost-optimized architectures. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
S3 Intelligent-Tiering is correct because it automatically moves objects between access tiers based on changing access patterns, optimizing costs without manual lifecycle rules. For data that is frequently accessed for 30 days and then rarely accessed, Intelligent-Tiering can cost-effectively handle the transition without upfront lifecycle configuration.
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.
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. — S3 Intelligent-Tiering is correct because it automatically moves objects between access tiers based on changing access patterns, optimizing costs without manual lifecycle rules. For data that is frequently accessed for 30 days and then rarely accessed, Intelligent-Tiering can cost-effectively handle the transition without upfront lifecycle configuration.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
3 more ways this is tested on SAA-C03
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Based on the exhibit, the company stores application logs in Amazon S3 for 400 days. The logs are read heavily for the first 30 days, occasionally for the next 90 days, and very rarely after that. Retrieval after day 120 can take up to several hours, but the data must remain available until day 400. Which lifecycle policy is the most cost-effective fit?
hard- A.Keep all logs in S3 Standard for 400 days and enable requester pays to reduce the company's bill.
- ✓ B.Transition logs to S3 Standard-IA after 30 days, then to S3 Glacier Flexible Retrieval after 120 days, and expire them at 400 days.
- C.Transition logs directly from S3 Standard to S3 Glacier Deep Archive after 30 days and expire them at 400 days.
- D.Move logs to S3 Intelligent-Tiering only and disable lifecycle transitions because access is unpredictable.
Why B: Option B is correct because it aligns the storage class transitions with the access patterns: S3 Standard for the first 30 days (heavy reads), S3 Standard-IA for the next 90 days (occasional reads), and S3 Glacier Flexible Retrieval for the remaining period (rare access, with retrieval up to several hours acceptable). This minimizes storage costs while ensuring data availability until day 400, where lifecycle expiration removes the objects.
Variation 2. 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.
hard- ✓ A.Keep new objects in S3 Standard for the first 14 days.
- ✓ B.Transition objects to S3 Standard-IA after 14 days.
- C.Transition objects to S3 Glacier Flexible Retrieval after 14 days.
- ✓ D.Transition objects to S3 Glacier Deep Archive after one year.
- E.Disable versioning to make the lifecycle rules work correctly.
Why A: 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. This storage class provides immediate retrieval and no retrieval costs, aligning with the requirement for minutes-level access during the first year.
Variation 3. 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.
hard- ✓ A.Keep new objects in S3 Standard for the first 14 days.
- ✓ B.Transition objects to S3 Standard-IA after 14 days.
- C.Transition objects to S3 Glacier Flexible Retrieval after 14 days.
- ✓ D.Transition objects to S3 Glacier Deep Archive after one year.
- E.Disable versioning to make the lifecycle rules work correctly.
Why A: 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.
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Last reviewed: Jun 30, 2026
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