- A
Delete backups after 30 days to avoid storage costs, since restores are rare.
Why wrong: Deleting after 30 days violates the stated requirement to retain backups for 2 years.
- B
Keep all backups in S3 Standard for the entire 2-year retention period.
Why wrong: S3 Standard is usually more expensive than tiered archival classes for long-term, infrequent access.
- C
Use an S3 lifecycle policy to keep backups in S3 Standard for 30 days, then transition them to S3 Glacier Deep Archive for the remainder of the 2-year retention period.
A lifecycle transition after the initial restore window reduces cost while still meeting the 2-year retention requirement.
- D
Move backups to S3 Glacier Deep Archive immediately after creation, even for the first 30 days.
Why wrong: Immediate Deep Archive storage may make restorations during the first 30 days too slow.
Quick Answer
The answer is to use an S3 lifecycle policy that keeps backups in S3 Standard for 30 days, then transitions them to S3 Glacier Deep Archive for the remaining 2-year retention period. This is correct because it aligns storage costs with access patterns: S3 Standard provides immediate retrieval during the first 30 days when restores are likely, while S3 Glacier Deep Archive offers the lowest storage cost for data that is rarely accessed but must be retained long-term. On the SAA-C03 exam, this scenario tests your ability to match S3 storage classes to data lifecycle requirements, often appearing as a cost-optimization question with a trap of choosing S3 Glacier Instant Retrieval or S3 One Zone-IA for long-term retention. Remember the memory tip: “Standard for the sprint, Deep Archive for the long haul”—the key is that infrequent access over years demands the cheapest deep archive tier, not just a cheaper standard tier.
SAA-C03 Design Cost-Optimized Architectures Practice Question
This SAA-C03 practice question tests your understanding of design cost-optimized architectures. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. A key principle to apply: s3 Lifecycle policies automate object transitions between storage classes.. 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 keeps daily database backups in an S3 bucket. They may restore from backups during the first 30 days if there is an issue. After 30 days, backups are rarely restored, but must be retained for 2 years. Which lifecycle strategy most cost-effectively meets these requirements?
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 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
Use an S3 lifecycle policy to keep backups in S3 Standard for 30 days, then transition them to S3 Glacier Deep Archive for the remainder of the 2-year retention period.
Option C is correct because it uses an S3 lifecycle policy to store backups in S3 Standard for the first 30 days when restores are likely, then transitions them to S3 Glacier Deep Archive for the remaining retention period. S3 Glacier Deep Archive offers the lowest storage cost for long-term, rarely accessed data, making this the most cost-effective strategy while meeting the 2-year retention requirement.
Key principle: S3 Lifecycle policies automate object transitions between storage classes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Delete backups after 30 days to avoid storage costs, since restores are rare.
Why it's wrong here
Deleting after 30 days violates the stated requirement to retain backups for 2 years.
- ✗
Keep all backups in S3 Standard for the entire 2-year retention period.
Why it's wrong here
S3 Standard is usually more expensive than tiered archival classes for long-term, infrequent access.
- ✓
Use an S3 lifecycle policy to keep backups in S3 Standard for 30 days, then transition them to S3 Glacier Deep Archive for the remainder of the 2-year retention period.
Why this is correct
A lifecycle transition after the initial restore window reduces cost while still meeting the 2-year retention requirement.
Clue confirmation
The clue word "first" in the question point toward this answer.
Related concept
S3 Lifecycle policies automate object transitions between storage classes.
- ✗
Move backups to S3 Glacier Deep Archive immediately after creation, even for the first 30 days.
Why it's wrong here
Immediate Deep Archive storage may make restorations during the first 30 days too slow.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may choose Option A, thinking that deleting old backups saves money, but they overlook the explicit retention requirement, or they may choose Option D, assuming immediate archiving is always cheapest, without considering the need for quick access during the first 30 days.
Detailed technical explanation
How to think about this question
S3 lifecycle policies allow automatic transition of objects between storage classes based on age. S3 Glacier Deep Archive has a retrieval time of 12-48 hours and a minimum storage duration of 180 days, but since the backups are retained for 2 years, this minimum is easily met. The transition cost from S3 Standard to S3 Glacier Deep Archive is minimal compared to the savings from not storing data in S3 Standard for the full 2 years.
KKey Concepts to Remember
- S3 Lifecycle policies automate object transitions between storage classes.
- S3 Standard is for frequently accessed data requiring low latency.
- S3 Glacier Deep Archive offers the lowest storage cost for long-term archives.
- Lifecycle policies help optimize storage costs by matching data access patterns.
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
S3 Lifecycle policies automate object transitions between storage classes.
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.
Review s3 Lifecycle policies automate object transitions between storage classes., then practise related SAA-C03 questions on the same topic to reinforce the concept.
- →
Design Cost-Optimized Architectures — study guide chapter
Learn the concepts, then practise the questions
- →
Design Cost-Optimized Architectures practice questions
Targeted practice on this topic area only
- →
All SAA-C03 questions
1,040 questions across all exam domains
- →
SAA-C03 study guide
Full concept coverage aligned to exam objectives
- →
SAA-C03 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SAA-C03 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Design Secure Architectures practice questions
Practise SAA-C03 questions linked to Design Secure Architectures.
Design Resilient Architectures practice questions
Practise SAA-C03 questions linked to Design Resilient Architectures.
Design High-Performing Architectures practice questions
Practise SAA-C03 questions linked to Design High-Performing Architectures.
Design Cost-Optimized Architectures practice questions
Practise SAA-C03 questions linked to Design Cost-Optimized Architectures.
SAA-C03 VPC practice questions
Practise SAA-C03 questions linked to SAA-C03 VPC.
SAA-C03 S3 lifecycle policy questions
Practise SAA-C03 questions linked to SAA-C03 S3 lifecycle policy questions.
SAA-C03 RDS Multi-AZ questions
Practise SAA-C03 questions linked to SAA-C03 RDS Multi-AZ questions.
SAA-C03 IAM policy practice questions
Practise SAA-C03 questions linked to SAA-C03 IAM policy.
SAA-C03 Route 53 failover questions
Practise SAA-C03 questions linked to SAA-C03 Route 53 failover questions.
SAA-C03 CloudFront practice questions
Practise SAA-C03 questions linked to SAA-C03 CloudFront.
SAA-C03 NAT gateway questions
Practise SAA-C03 questions linked to SAA-C03 NAT gateway questions.
SAA-C03 VPC endpoint questions
Practise SAA-C03 questions linked to SAA-C03 VPC endpoint questions.
Practice this exam
Start a free SAA-C03 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design Cost-Optimized Architectures — This question tests Design Cost-Optimized Architectures — S3 Lifecycle policies automate object transitions between storage classes..
What is the correct answer to this question?
The correct answer is: Use an S3 lifecycle policy to keep backups in S3 Standard for 30 days, then transition them to S3 Glacier Deep Archive for the remainder of the 2-year retention period. — Option C is correct because it uses an S3 lifecycle policy to store backups in S3 Standard for the first 30 days when restores are likely, then transitions them to S3 Glacier Deep Archive for the remaining retention period. S3 Glacier Deep Archive offers the lowest storage cost for long-term, rarely accessed data, making this the most cost-effective strategy while meeting the 2-year retention requirement.
What should I do if I get this SAA-C03 question wrong?
Review s3 Lifecycle policies automate object transitions between storage classes., then practise related SAA-C03 questions on the same topic to reinforce the concept.
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?
S3 Lifecycle policies automate object transitions between storage classes.
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 →
Last reviewed: Jun 11, 2026
This SAA-C03 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 SAA-C03 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.