This DOP-C02 practice question tests your understanding of security and compliance. 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 is using AWS CloudTrail to log API events. The security team wants to ensure that log files are tamper-proof and available for incident investigation. Which TWO actions should be taken? (Choose TWO.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable CloudTrail log file validation.
Options A and D are correct. Enabling log file validation allows CloudTrail to create a digest file for integrity verification. Enabling S3 Object Lock prevents logs from being deleted or overwritten. Option B: SSE-S3 provides encryption but not tamper-proofing. Option C: CloudWatch Logs does not provide file integrity. Option E: KMS encryption is for encryption, not integrity.
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.
✗
Store logs in Amazon CloudWatch Logs.
Why it's wrong here
CloudWatch Logs does not provide tamper-proof storage.
✗
Enable server-side encryption with S3-managed keys (SSE-S3).
Why it's wrong here
Encryption does not prevent tampering.
✓
Enable CloudTrail log file validation.
Why this is correct
Creates digest files to verify log integrity.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable S3 Object Lock on the S3 bucket storing the logs.
Why this is correct
Prevents logs from being overwritten or deleted.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use AWS KMS to encrypt the logs.
Why it's wrong here
Encryption alone does not prevent tampering.
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 DOP-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 and Compliance — This question tests Security and Compliance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable CloudTrail log file validation. — Options A and D are correct. Enabling log file validation allows CloudTrail to create a digest file for integrity verification. Enabling S3 Object Lock prevents logs from being deleted or overwritten. Option B: SSE-S3 provides encryption but not tamper-proofing. Option C: CloudWatch Logs does not provide file integrity. Option E: KMS encryption is for encryption, not integrity.
What should I do if I get this DOP-C02 question wrong?
Identify which DOP-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 DOP-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 DOP-C02 exam.
Question Discussion
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