The answer is to create an S3 Lifecycle rule that transitions objects with the prefix 'backups/' to GLACIER after 30 days. This is the most efficient approach because S3 Lifecycle policies are designed specifically for automated, time-based storage class transitions, allowing you to define rules that move objects from STANDARD_IA to GLACIER without any custom code or manual intervention. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of cost-optimization automation versus one-off operations or event-driven compute; a common trap is selecting S3 Batch Operations for recurring transitions or assuming S3 Intelligent-Tiering will automatically move data to GLACIER, but Intelligent-Tiering only moves between frequent and infrequent access tiers, not to archive classes. Remember the mnemonic: Lifecycle for lifecycle, Batch for batch—use Lifecycle rules when you need recurring, time-based transitions to Glacier.
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 backups. The backup process uploads objects with a prefix 'backups/' and sets the storage class to STANDARD_IA. The company wants to automatically move objects older than 30 days to GLACIER. What is the most efficient way to achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create an S3 Lifecycle rule that transitions objects with prefix 'backups/' to GLACIER after 30 days.
Option D is correct because an S3 Lifecycle rule can be configured to transition objects with the specified prefix to GLACIER after 30 days. Option A is incorrect because S3 Batch Operations are for one-time bulk operations. Option B is incorrect because S3 Intelligent-Tiering may not move to GLACIER automatically. Option C is incorrect because Lambda would be less efficient.
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 an AWS Lambda function triggered by S3 events to change the storage class.
Why it's wrong here
Possible but less efficient than Lifecycle rules.
✗
Use S3 Batch Operations to copy objects to a new bucket with GLACIER storage class.
Why it's wrong here
This is a one-time operation, not ongoing management.
✓
Create an S3 Lifecycle rule that transitions objects with prefix 'backups/' to GLACIER after 30 days.
Why this is correct
Lifecycle rules automate transitions based on age.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable S3 Intelligent-Tiering on the bucket.
Why it's wrong here
Intelligent-Tiering does not automatically move to GLACIER.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Identify which SAP-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.
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an S3 Lifecycle rule that transitions objects with prefix 'backups/' to GLACIER after 30 days. — Option D is correct because an S3 Lifecycle rule can be configured to transition objects with the specified prefix to GLACIER after 30 days. Option A is incorrect because S3 Batch Operations are for one-time bulk operations. Option B is incorrect because S3 Intelligent-Tiering may not move to GLACIER automatically. Option C is incorrect because Lambda would be less efficient.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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