Quick Answer
The correct answer is S3 Standard-IA. This storage class is the ideal starting point because it balances cost and performance for data that is accessed frequently in the first 30 days but then transitions to a colder tier, making it the perfect fit for an S3 lifecycle policy moving objects to Glacier Instant Retrieval after 30 days. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of lifecycle transitions and cost optimization—specifically that Standard-IA is designed for infrequent but rapid access, while Glacier Instant Retrieval is for long-term archival with immediate retrieval needs. A common trap is choosing S3 Standard, which would be unnecessarily expensive for logs that are rarely accessed after the initial period, or mistakenly selecting S3 One Zone-IA, which lacks the durability required for critical logs. Remember the memory tip: “IA for the first phase, Glacier for the archive—don’t pay Standard prices for logs that gather dust.”
This SAP-C02 practice question tests your understanding of design for new solutions. 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 company wants to store application logs in Amazon S3 with a lifecycle policy that moves objects to S3 Glacier Instant Retrieval after 30 days and deletes them after 1 year. The logs are accessed frequently in the first 30 days but rarely after. Which storage class should the company use for the first 30 days?
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.
S3 Standard
Why wrong: S3 Standard is more expensive for data that is not accessed frequently.
S3 Standard-IA
S3 Standard-IA offers lower cost for infrequently accessed data with millisecond retrieval, suitable for logs accessed rarely after initial period.
S3 One Zone-IA
Why wrong: One Zone-IA lacks resilience, not recommended for logs.
S3 Glacier Flexible Retrieval
Why wrong: Glacier is for archival, not for first 30 days access.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
S3 Standard-IA
Option B is correct because S3 Standard-IA is cost-effective for data accessed infrequently but with rapid access when needed, and it transitions to Glacier Instant Retrieval. Option A is too expensive if logs are not frequently accessed. Option C is for infrequent access with longer retrieval times. Option D is for archival.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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 more expensive for data that is not accessed frequently.
S3 Standard-IA
Why this is correct
S3 Standard-IA offers lower cost for infrequently accessed data with millisecond retrieval, suitable for logs accessed rarely after initial period.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
S3 One Zone-IA
Why it's wrong here
One Zone-IA lacks resilience, not recommended for logs.
S3 Glacier Flexible Retrieval
Why it's wrong here
Glacier is for archival, not for first 30 days access.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
Identify which SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
The correct answer is: S3 Standard-IA — Option B is correct because S3 Standard-IA is cost-effective for data accessed infrequently but with rapid access when needed, and it transitions to Glacier Instant Retrieval. Option A is too expensive if logs are not frequently accessed. Option C is for infrequent access with longer retrieval times. Option D is for archival.
Identify which SAP-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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