← SOA-C02·Amazon Web Services

Question 1,228 of 1,546

Reliability and Business Continuity →easyMultiple ChoiceObjective-mapped

Quick Answer

The answer is that the lifecycle policy was created after the test objects were uploaded, and by default, S3 lifecycle policies do not apply to existing objects. This is because S3 lifecycle rules are evaluated only for objects uploaded after the policy is created, unless you explicitly configure the rule to filter on a tag or prefix that matches existing objects, or you use the S3 Batch Operations feature to apply the policy retroactively. On the AWS Certified SysOps Administrator Associate SOA-C02 exam, this scenario tests your understanding that lifecycle transitions are not retroactive by design—a common trap is assuming a newly created policy will automatically govern data already in the bucket. To remember this, think of the lifecycle policy as a "new tenant lease": it only covers tenants who move in after the lease is signed, not those already living there.

SOA-C02 Reliability and Business Continuity Practice Question

This SOA-C02 practice question tests your understanding of reliability and business continuity. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 sensitive financial documents. The company's compliance team requires that all objects be encrypted at rest using server-side encryption with AWS KMS managed keys (SSE-KMS). Additionally, the compliance team requires that if an object is not accessed for 90 days, it should be automatically moved to Amazon S3 Glacier to reduce costs. The SysOps administrator is tasked with implementing these requirements. The administrator creates an S3 bucket and enables default encryption with SSE-KMS. Then, the administrator creates a lifecycle policy with a transition action to Glacier after 90 days. During testing, the administrator notices that objects uploaded to the bucket are not being transitioned to Glacier after 90 days. What is the most likely cause of this issue?

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.

Question 1easymultiple choice

Full question →

A
The bucket has S3 Versioning enabled, and the lifecycle policy does not apply to previous versions.
Why wrong: Lifecycle policies can be configured to apply to current and previous versions. Versioning itself does not block transitions.
B
The bucket's default encryption setting overwrites the lifecycle policy.
Why wrong: Default encryption and lifecycle policies are independent.
C
The bucket has S3 Object Lock enabled, which prevents objects from being transitioned to Glacier.
Why wrong: Object Lock does not prevent transitions; it only prevents deletion or overwrite during the retention period.
D
The lifecycle policy was created after the test objects were uploaded, and the policy does not apply to existing objects.
Lifecycle policies apply to newly uploaded objects by default. To apply to existing objects, the policy must be configured with a filter that includes all objects.

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

✓

The lifecycle policy was created after the test objects were uploaded, and the policy does not apply to existing objects.

Option D is correct because lifecycle policies only apply to objects that are uploaded after the policy is created, unless the policy is applied to the entire bucket and includes existing objects. If the lifecycle policy was created after the test objects were uploaded, those objects are not affected unless the policy is configured to cover existing objects. Option A is wrong because SSE-KMS does not prevent lifecycle transitions. Option B is wrong because S3 Versioning does not block transitions. Option C is wrong because S3 Object Lock can prevent deletion but not transitions to Glacier.

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 has S3 Versioning enabled, and the lifecycle policy does not apply to previous versions.
Why it's wrong here
Lifecycle policies can be configured to apply to current and previous versions. Versioning itself does not block transitions.
✗
The bucket's default encryption setting overwrites the lifecycle policy.
Why it's wrong here
Default encryption and lifecycle policies are independent.
✗
The bucket has S3 Object Lock enabled, which prevents objects from being transitioned to Glacier.
Why it's wrong here
Object Lock does not prevent transitions; it only prevents deletion or overwrite during the retention period.
✓
The lifecycle policy was created after the test objects were uploaded, and the policy does not apply to existing objects.
Why this is correct
Lifecycle policies apply to newly uploaded objects by default. To apply to existing objects, the policy must be configured with a filter that includes all objects.
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.

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.

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FAQ

Questions learners often ask

What does this SOA-C02 question test?

Reliability and Business Continuity — This question tests Reliability and Business Continuity — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The lifecycle policy was created after the test objects were uploaded, and the policy does not apply to existing objects. — Option D is correct because lifecycle policies only apply to objects that are uploaded after the policy is created, unless the policy is applied to the entire bucket and includes existing objects. If the lifecycle policy was created after the test objects were uploaded, those objects are not affected unless the policy is configured to cover existing objects. Option A is wrong because SSE-KMS does not prevent lifecycle transitions. Option B is wrong because S3 Versioning does not block transitions. Option C is wrong because S3 Object Lock can prevent deletion but not transitions to Glacier.

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: "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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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.