The answer is to use S3 Standard for 30 days and then transition to S3 Glacier Deep Archive. This is the most cost-effective solution because an S3 lifecycle policy automates the transition of log files from frequent-access Standard storage to the lowest-cost archival tier—Glacier Deep Archive—after the initial 30-day active period, while still meeting the 7-year compliance retention requirement. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this question tests your ability to apply lifecycle policies for cost optimization, often appearing as a scenario where you must choose between Glacier Flexible Retrieval and Deep Archive; the common trap is picking Flexible Retrieval for long-term logs, but Deep Archive is significantly cheaper for data accessed only once every few years. Remember the memory tip: “30 days hot, then Deep Archive to save the lot.”
SOA-C02 Cost and Performance Optimization Practice Question
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 Amazon S3 to store log files. The logs are accessed frequently for the first 30 days, then rarely accessed after that. The company must retain logs for 7 years for compliance. What is the MOST cost-effective storage solution?
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 the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use S3 Standard for 30 days and then transition to S3 Glacier Deep Archive.
S3 Lifecycle policies can transition objects from S3 Standard to S3 Glacier Deep Archive after 30 days, minimizing costs while meeting compliance. S3 Glacier Flexible Retrieval is more expensive than Deep Archive for long-term archival. S3 Intelligent-Tiering adds monitoring costs. S3 One Zone-IA is not suitable for long-term archival due to lower durability.
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.
✓
Use S3 Standard for 30 days and then transition to S3 Glacier Deep Archive.
Why this is correct
This minimizes cost by using low-cost deep archive for long-term retention.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use S3 Standard for 7 years.
Why it's wrong here
S3 Standard is expensive for long-term archival.
✗
Use S3 One Zone-IA for 30 days and then transition to S3 Glacier Flexible Retrieval.
Why it's wrong here
One Zone-IA is not suitable for long-term archival due to lower durability.
✗
Use S3 Intelligent-Tiering for the entire 7 years.
Why it's wrong here
Intelligent-Tiering adds monitoring costs and is not optimized for infrequent access after 30 days.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
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.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 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 — 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: Use S3 Standard for 30 days and then transition to S3 Glacier Deep Archive. — S3 Lifecycle policies can transition objects from S3 Standard to S3 Glacier Deep Archive after 30 days, minimizing costs while meeting compliance. S3 Glacier Flexible Retrieval is more expensive than Deep Archive for long-term archival. S3 Intelligent-Tiering adds monitoring costs. S3 One Zone-IA is not suitable for long-term archival due to lower durability.
What should I do if I get this SOA-C02 question wrong?
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.
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 →
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. A company stores log files in Amazon S3. The logs are accessed frequently for the first 30 days, then rarely after that. The company wants to automatically transition objects to a lower-cost storage class after 30 days. Which S3 feature should be configured?
easy
✓ A.S3 Lifecycle rule
B.S3 Versioning
C.S3 Transfer Acceleration
D.S3 Object Lock
Why A: Option D is correct because S3 Lifecycle rules automate transitions between storage classes. S3 Versioning is for object versions. S3 Object Lock is for retention. S3 Transfer Acceleration speeds up uploads.
Last reviewed: Jun 20, 2026
Question Discussion
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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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