Quick Answer
The answer is S3 Glacier Deep Archive. This storage class is the most cost-effective choice for data that is rarely accessed and must be retained for 7 years because it is specifically designed for long-term archival at the lowest storage cost in AWS, trading retrieval time (hours) for maximum savings. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your ability to match storage classes to access patterns and retention requirements, often presenting S3 Standard-IA or One Zone-IA as traps—these are for infrequent but still occasional access, not true archival. A common memory tip is to think of Glacier Deep Archive as the "deep freeze" for data you almost never touch, while S3 Standard is the "fridge" for daily use. Remember: if the data must sit untouched for years, go deep.
This SOA-C02 practice question tests your understanding of cost and performance optimization. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 uses S3 standard storage for all data. They have data that is accessed rarely but must be retained for 7 years. Which storage class would be MOST cost-effective?
S3 One Zone-IA
Why wrong: One Zone-IA is not as durable and not for long-term.
S3 Standard
Why wrong: Standard is for frequent access, costly.
S3 Glacier Deep Archive
Deep Archive is designed for long-term retention at low cost.
S3 Intelligent-Tiering
Why wrong: Intelligent-Tiering has monitoring costs.
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 Glacier Deep Archive
Option C is correct because S3 Glacier Deep Archive is the lowest-cost storage for long-term archival. S3 Standard is expensive, S3 IA is for infrequent access but not long-term, and S3 One Zone IA is less durable.
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 One Zone-IA
Why it's wrong here
One Zone-IA is not as durable and not for long-term.
S3 Standard
Why it's wrong here
Standard is for frequent access, costly.
S3 Glacier Deep Archive
Why this is correct
Deep Archive is designed for long-term retention at low cost.
Related concept
Read the scenario before looking for a memorised answer.
S3 Intelligent-Tiering
Why it's wrong here
Intelligent-Tiering has monitoring costs.
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 SOA-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.
Cost and Performance Optimization — study guide chapter
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FAQ
Cost and Performance Optimization — This question tests Cost and Performance Optimization — Read the scenario before looking for a memorised answer..
The correct answer is: S3 Glacier Deep Archive — Option C is correct because S3 Glacier Deep Archive is the lowest-cost storage for long-term archival. S3 Standard is expensive, S3 IA is for infrequent access but not long-term, and S3 One Zone IA is less durable.
Identify which SOA-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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 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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