The answer is to enable S3 Object Lock in Compliance mode on the bucket with a retention period of 7 years. This is correct because S3 Object Lock’s Compliance mode applies a strict, immutable retention policy that prevents any user—including the AWS root account user—from deleting or overwriting objects until the retention period expires, making it the only option that fully satisfies the requirement to prevent deletion of CloudTrail logs before the retention period ends. On the AWS Certified Security Specialty SCS-C02 exam, this question tests your understanding of how to enforce data retention against privileged users, often appearing as a trap where candidates confuse MFA Delete or versioning with true immutability. A common memory tip: remember that “Compliance” mode locks everyone out, including the root user, while “Governance” mode allows some exceptions. For this scenario, think “Compliance for compliance.”
SCS-C02 Security Logging and Monitoring Practice Question
This SCS-C02 practice question tests your understanding of security logging and monitoring. 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 has a requirement to retain CloudTrail logs for 7 years for compliance. The logs are stored in an S3 bucket. The security team needs to ensure that logs are not deleted before the retention period ends, even by users with full S3 permissions. Which action should be taken?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable S3 Object Lock in Compliance mode on the bucket with a retention period of 7 years.
S3 Object Lock with a retention mode of Compliance prevents any user, including the root user, from deleting objects until the retention period expires. Option A is correct. Option B is wrong because MFA Delete can be bypassed by root. Option C is wrong because bucket policies do not prevent deletion by bucket owners with full permissions. Option D is wrong because versioning alone does not prevent deletion.
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.
✗
Enable MFA Delete on the bucket and require MFA for all delete operations.
Why it's wrong here
MFA can be bypassed by root user with hardware MFA.
✓
Enable S3 Object Lock in Compliance mode on the bucket with a retention period of 7 years.
Why this is correct
Compliance mode prevents any deletion, even by root.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable S3 Versioning and set a lifecycle policy to expire noncurrent versions after 7 years.
Why it's wrong here
Versioning allows deletion of current versions.
✗
Create a bucket policy that denies s3:DeleteObject for all users.
Why it's wrong here
Bucket policy does not apply to the AWS account root user.
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 SCS-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.
Security Logging and Monitoring — This question tests Security Logging and Monitoring — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable S3 Object Lock in Compliance mode on the bucket with a retention period of 7 years. — S3 Object Lock with a retention mode of Compliance prevents any user, including the root user, from deleting objects until the retention period expires. Option A is correct. Option B is wrong because MFA Delete can be bypassed by root. Option C is wrong because bucket policies do not prevent deletion by bucket owners with full permissions. Option D is wrong because versioning alone does not prevent deletion.
What should I do if I get this SCS-C02 question wrong?
Identify which SCS-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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This SCS-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 SCS-C02 exam.
Question Discussion
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