- A
Keep new objects in S3 Standard for the first 14 days.
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.
- B
Transition objects to S3 Standard-IA after 14 days.
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.
- C
Transition objects to S3 Glacier Flexible Retrieval after 14 days.
Why wrong: 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.
- D
Transition objects to S3 Glacier Deep Archive after one year.
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.
- E
Disable versioning to make the lifecycle rules work correctly.
Why wrong: 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.
SAA-C03 Design Cost-Optimized Architectures Practice Question
This SAA-C03 practice question tests your understanding of design cost-optimized architectures. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: s3 Standard is for frequently accessed data with low latency needs.. 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 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.
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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.
Clue:
"never"Why it matters: Absolute qualifier. True only if the statement has zero exceptions — be cautious of options that seem obvious but break down in edge cases.
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. This storage class provides immediate retrieval and no retrieval costs, aligning with the requirement for minutes-level access during the first year.
Key principle: S3 Standard is for frequently accessed data with low latency needs.
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.
Clue confirmation
The clue words "best", "first", "never" in the question point toward this answer.
Related concept
S3 Standard is for frequently accessed data with low latency needs.
- ✓
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.
Clue confirmation
The clue words "best", "first", "never" in the question point toward this answer.
Related concept
S3 Standard is for frequently accessed data with low latency needs.
- ✗
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.
Clue confirmation
The clue words "best", "first", "never" in the question point toward this answer.
Related concept
S3 Standard is for frequently accessed data with low latency needs.
- ✗
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.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates might incorrectly choose S3 Glacier Flexible Retrieval for the 14-day transition, overlooking that its retrieval times (minutes to hours) do not meet the 'within minutes' requirement for the first year, or mistakenly think versioning must be disabled for lifecycle rules to function.
Detailed technical explanation
How to think about this question
S3 Lifecycle policies use transitions based on object age, and the 30-day minimum for transitions to S3 Standard-IA is a key constraint; however, the question allows a 14-day window in S3 Standard before moving to Standard-IA, which is valid because Standard-IA has no minimum storage duration penalty for objects stored less than 30 days (the penalty applies only if deleted early). After one year, transitioning to S3 Glacier Deep Archive provides the lowest cost for rarely accessed data, with retrieval times of 12-48 hours, which is acceptable since objects are almost never accessed after that point.
KKey Concepts to Remember
- S3 Standard is for frequently accessed data with low latency needs.
- S3 Standard-IA is for infrequently accessed data requiring rapid access.
- S3 Glacier Flexible Retrieval is for archival data with flexible retrieval times.
- S3 Lifecycle policies automate object transitions between storage classes.
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
S3 Standard is for frequently accessed data with low latency needs.
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
Got this wrong? Here's your next step.
Review s3 Standard is for frequently accessed data with low latency needs., then practise related SAA-C03 questions on the same topic to reinforce the concept.
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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 — S3 Standard is for frequently accessed data with low latency needs..
What is the correct answer to this question?
The correct answer is: 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. This storage class provides immediate retrieval and no retrieval costs, aligning with the requirement for minutes-level access during the first year.
What should I do if I get this SAA-C03 question wrong?
Review s3 Standard is for frequently accessed data with low latency needs., then practise related SAA-C03 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "best", "first", "never". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
S3 Standard is for frequently accessed data with low latency needs.
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Last reviewed: Jun 11, 2026
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