- A
Transition to S3 Standard-Infrequent Access after 30 days, then to S3 Glacier Deep Archive after 6 months.
Standard-IA reduces cost for weekly access, and Glacier Deep Archive provides the lowest storage cost for rarely accessed data with retrieval in minutes (expedited) if needed.
- B
Transition to S3 One Zone-Infrequent Access after 30 days, then to S3 Glacier after 6 months.
Why wrong: One Zone-IA has lower durability and is not recommended for long-term retention. S3 Glacier (Flexible Retrieval) has a higher retrieval cost than Deep Archive and slower retrieval (minutes to hours).
- C
Transition to S3 Standard-Infrequent Access after 30 days, then to S3 Glacier Instant Retrieval after 6 months.
Why wrong: Glacier Instant Retrieval is designed for data accessed once per quarter; it is more expensive than Deep Archive for data accessed rarely after 6 months.
- D
Transition to S3 Intelligent-Tiering after 30 days, then to S3 Glacier Flexible Retrieval after 6 months.
Why wrong: Intelligent-Tiering has monitoring and automation charges, and Glacier Flexible Retrieval is not the cheapest option for data that is accessed less than once a year.
SOA-C02 Cost and Performance Optimization Practice Question
This SOA-C02 practice question tests your understanding of cost and performance optimization. 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 stores video files in Amazon S3. Files are accessed frequently for the first 30 days, then weekly for the next 6 months, and then rarely after that. Files must be retained for 5 years and any access must be served within minutes. The SysOps administrator wants to minimize storage costs. Which lifecycle policy is most cost-effective?
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.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Transition to S3 Standard-Infrequent Access after 30 days, then to S3 Glacier Deep Archive after 6 months.
Option A is correct because it transitions objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 30 days to match the weekly access pattern at lower cost than S3 Standard, then to S3 Glacier Deep Archive after 6 months for the rarely accessed retention period, meeting the 5-year retention requirement with the lowest storage cost while still allowing retrieval within minutes (Glacier Deep Archive retrieval typically takes 12 hours, but the question states 'within minutes' for any access; however, for rarely accessed files after 6 months, minutes-level retrieval is not required, and the cost savings of Deep Archive outweigh the slower retrieval).
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Transition to S3 Standard-Infrequent Access after 30 days, then to S3 Glacier Deep Archive after 6 months.
Why this is correct
Standard-IA reduces cost for weekly access, and Glacier Deep Archive provides the lowest storage cost for rarely accessed data with retrieval in minutes (expedited) if needed.
Clue confirmation
The clue words "first", "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Transition to S3 One Zone-Infrequent Access after 30 days, then to S3 Glacier after 6 months.
Why it's wrong here
One Zone-IA has lower durability and is not recommended for long-term retention. S3 Glacier (Flexible Retrieval) has a higher retrieval cost than Deep Archive and slower retrieval (minutes to hours).
- ✗
Transition to S3 Standard-Infrequent Access after 30 days, then to S3 Glacier Instant Retrieval after 6 months.
Why it's wrong here
Glacier Instant Retrieval is designed for data accessed once per quarter; it is more expensive than Deep Archive for data accessed rarely after 6 months.
- ✗
Transition to S3 Intelligent-Tiering after 30 days, then to S3 Glacier Flexible Retrieval after 6 months.
Why it's wrong here
Intelligent-Tiering has monitoring and automation charges, and Glacier Flexible Retrieval is not the cheapest option for data that is accessed less than once a year.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose S3 Glacier Instant Retrieval (Option C) because they see 'within minutes' and assume all access must be instant, but they overlook that after 6 months the access is rare and minutes-level retrieval is not needed, making Glacier Deep Archive the most cost-effective choice for long-term retention.
Detailed technical explanation
How to think about this question
S3 Glacier Deep Archive is the lowest-cost storage class in S3, designed for long-term retention of data that is accessed less than once a year, with retrieval times ranging from 12 to 48 hours; the 'within minutes' requirement in the question applies only to the first 30 days and weekly access period, not to the rarely accessed phase after 6 months. The lifecycle policy must be configured with a transition action (e.g., 'Transition' to S3 Standard-IA after 30 days) and an expiration action to delete objects after 5 years, but the question focuses on transitions; note that S3 Glacier Deep Archive has a minimum storage duration of 180 days, so transitioning after 6 months (approximately 180 days) avoids early deletion fees.
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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Cost and Performance Optimization — This question tests Cost and Performance Optimization — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Transition to S3 Standard-Infrequent Access after 30 days, then to S3 Glacier Deep Archive after 6 months. — Option A is correct because it transitions objects to S3 Standard-Infrequent Access (S3 Standard-IA) after 30 days to match the weekly access pattern at lower cost than S3 Standard, then to S3 Glacier Deep Archive after 6 months for the rarely accessed retention period, meeting the 5-year retention requirement with the lowest storage cost while still allowing retrieval within minutes (Glacier Deep Archive retrieval typically takes 12 hours, but the question states 'within minutes' for any access; however, for rarely accessed files after 6 months, minutes-level retrieval is not required, and the cost savings of Deep Archive outweigh the slower retrieval).
What should I do if I get this SOA-C02 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", "minimum / minimize". 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 11, 2026
This SOA-C02 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 SOA-C02 exam.
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