The answer is that the S3 lifecycle rule is not deleting old versions because the bucket contains delete markers that are not being expired. This occurs because the NoncurrentVersionExpirationInDays action only applies to noncurrent object versions, not to delete markers themselves. When an object has no current version—meaning all remaining versions are delete markers—the lifecycle rule ignores them entirely, leaving the markers in place indefinitely. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of how S3 lifecycle policies interact with versioning and delete markers, a common trap where candidates assume NoncurrentVersionExpirationInDays cleans up everything. To fix this, you must add a separate ExpiredObjectDeleteMarker action to the lifecycle rule. Memory tip: think of delete markers as ghosts—they only vanish when you explicitly tell S3 to exorcise them with ExpiredObjectDeleteMarker.
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing solutions. 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 company uses this CloudFormation template to manage an S3 bucket. They notice that old object versions are not being deleted after 30 days. What is the most likely reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The bucket contains delete markers that are not being expired.
Option C is correct because NoncurrentVersionExpirationInDays applies to noncurrent versions, but if the object has no current version (e.g., all versions are delete markers), the rule doesn't clean up delete markers. Option A is wrong because the rule is enabled. Option B is wrong because versioning is enabled. Option D is wrong because bucket policy doesn't affect lifecycle.
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.
✓
The bucket contains delete markers that are not being expired.
Why this is correct
Lifecycle does not automatically delete delete markers; need ExpiredObjectDeleteMarker.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The bucket has a bucket policy that prevents deletion.
Why it's wrong here
Bucket policy doesn't block lifecycle actions.
✗
Versioning is not enabled on the bucket.
Why it's wrong here
VersioningConfiguration has Status Enabled.
✗
The lifecycle rule is disabled.
Why it's wrong here
The Status is Enabled.
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: The bucket contains delete markers that are not being expired. — Option C is correct because NoncurrentVersionExpirationInDays applies to noncurrent versions, but if the object has no current version (e.g., all versions are delete markers), the rule doesn't clean up delete markers. Option A is wrong because the rule is enabled. Option B is wrong because versioning is enabled. Option D is wrong because bucket policy doesn't affect lifecycle.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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