← SOA-C02·Amazon Web Services

Question 56 of 1,546

Cost and Performance Optimization →mediumMultiple ChoiceObjective-mapped

Optimizing S3 Storage Costs with Lifecycle Policies for Logs and User Uploads

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 SysOps administrator notices that the monthly bill for Amazon S3 has increased significantly. The company uses S3 for storing application logs and user uploads. The logs are accessed rarely but must be retained for 3 years. User uploads are accessed frequently for the first 30 days, then rarely after. Which S3 lifecycle policy will optimize storage costs?

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.

A
Transition logs to S3 Glacier Deep Archive after 30 days, and transition user uploads to S3 Standard-IA after 30 days, then to Glacier Deep Archive after 90 days.
This matches access patterns and retention requirements.
B
Transition user uploads to S3 Glacier Deep Archive after 30 days, and transition logs to S3 Glacier after 90 days.
Why wrong: User uploads are accessed frequently for first 30 days, so immediate archiving is not appropriate.
C
Move logs to S3 Glacier Deep Archive after 30 days, and delete user uploads after 1 year.
Why wrong: Logs need to be retained for 3 years, not deleted; user uploads should not be deleted after 1 year if still needed.
D
Transition logs to S3 Standard-IA after 30 days, and transition user uploads to S3 One Zone-IA after 30 days.
Why wrong: Logs should go to Glacier Deep Archive for cost savings; user uploads should be transitioned after 30 days.

Full breakdown with real-world context →

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 logs to S3 Glacier Deep Archive after 30 days, and transition user uploads to S3 Standard-IA after 30 days, then to Glacier Deep Archive after 90 days.

The correct answer is A. This lifecycle policy optimizes costs by transitioning logs (rarely accessed but need retention) directly to S3 Glacier Deep Archive after 30 days, and for user uploads (frequently accessed for the first 30 days, then rarely), transition to S3 Standard-IA after 30 days, then to Glacier Deep Archive after 90 days. Option B is wrong because it transitions user uploads (initially frequent access) to Glacier Deep Archive too early, causing retrieval costs. Option C is wrong because logs should be archived, but deleting user uploads after 1 year may be premature. Option D is wrong because it transitions logs to Standard-IA, which is not cost-effective for long-term retention, and user uploads to One Zone-IA, which lacks 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.

✓
Transition logs to S3 Glacier Deep Archive after 30 days, and transition user uploads to S3 Standard-IA after 30 days, then to Glacier Deep Archive after 90 days.
Why this is correct
This matches access patterns and retention requirements.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Transition user uploads to S3 Glacier Deep Archive after 30 days, and transition logs to S3 Glacier after 90 days.
Why it's wrong here
User uploads are accessed frequently for first 30 days, so immediate archiving is not appropriate.
✗
Move logs to S3 Glacier Deep Archive after 30 days, and delete user uploads after 1 year.
Why it's wrong here
Logs need to be retained for 3 years, not deleted; user uploads should not be deleted after 1 year if still needed.
✗
Transition logs to S3 Standard-IA after 30 days, and transition user uploads to S3 One Zone-IA after 30 days.
Why it's wrong here
Logs should go to Glacier Deep Archive for cost savings; user uploads should be transitioned 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.

Quick reference

AWS S3 Storage Class Comparison

Storage Class	Min Duration	Retrieval	Use Case
S3 Standard	None	Immediate	Frequently accessed data
S3 Standard-IA	30 days	Immediate	Infrequent access, rapid retrieval
S3 One Zone-IA	30 days	Immediate	Non-critical infrequent data
S3 Intelligent-Tiering	None	Immediate–hours	Unknown or changing access patterns
S3 Glacier Instant	90 days	Milliseconds	Archive with instant retrieval
S3 Glacier Flexible	90 days	Minutes–hours	Archive, flexible retrieval
S3 Glacier Deep Archive	180 days	Hours	Long-term compliance archive

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.

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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 logs to S3 Glacier Deep Archive after 30 days, and transition user uploads to S3 Standard-IA after 30 days, then to Glacier Deep Archive after 90 days. — The correct answer is A. This lifecycle policy optimizes costs by transitioning logs (rarely accessed but need retention) directly to S3 Glacier Deep Archive after 30 days, and for user uploads (frequently accessed for the first 30 days, then rarely), transition to S3 Standard-IA after 30 days, then to Glacier Deep Archive after 90 days. Option B is wrong because it transitions user uploads (initially frequent access) to Glacier Deep Archive too early, causing retrieval costs. Option C is wrong because logs should be archived, but deleting user uploads after 1 year may be premature. Option D is wrong because it transitions logs to Standard-IA, which is not cost-effective for long-term retention, and user uploads to One Zone-IA, which lacks durability.

What should I do if I get this SOA-C02 question wrong?

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.

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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.