The correct action is to use the AWS CLI `validate-logs` command with the digest file from the S3 bucket. This works because CloudTrail automatically delivers cryptographically signed digest files to the same S3 bucket every hour, containing a hash of each log file; the `validate-logs` command compares the current hash against the stored digest to confirm no tampering has occurred. On the AWS Certified Security Specialty SCS-C02 exam, this question tests your understanding of CloudTrail’s built-in integrity verification mechanism, often appearing as a distractor where candidates confuse encryption (like SSE-S3) or deletion prevention (like S3 Object Lock) with integrity validation. A common trap is assuming CloudWatch Logs Insights can verify file integrity, but it only queries log contents, not cryptographic hashes. Remember the memory tip: “Digest validates, encryption only protects at rest.”
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 enabled AWS CloudTrail in all accounts and regions, with log file validation enabled. The security team needs to verify that a specific log file has not been modified since it was delivered. 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
✓
Use the AWS CLI `validate-logs` command with the digest file from the S3 bucket.
Option A is correct because CloudTrail provides a digest file that contains a hash of each log file; you can use the AWS CLI command `aws cloudtrail validate-logs` to verify integrity. Option B is incorrect because S3 server-side encryption does not provide integrity verification. Option C is incorrect because CloudWatch Logs Insights does not validate log file integrity. Option D is incorrect because S3 Object Lock prevents deletion but not modification of existing objects; it does not verify integrity against a digest.
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.
✗
Query the log files using Amazon CloudWatch Logs Insights.
Why it's wrong here
CloudWatch Logs Insights does not verify integrity; it only queries log data.
✗
Enable S3 server-side encryption with AWS KMS (SSE-KMS) on the CloudTrail bucket.
Why it's wrong here
SSE-KMS protects data at rest but does not provide integrity verification of log files.
✗
Enable S3 Object Lock on the bucket to prevent modifications.
Why it's wrong here
Object Lock prevents deletion or overwrite but does not verify integrity against a baseline hash.
✓
Use the AWS CLI `validate-logs` command with the digest file from the S3 bucket.
Why this is correct
The `validate-logs` command uses the digest file to verify the integrity of log files.
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 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: Use the AWS CLI `validate-logs` command with the digest file from the S3 bucket. — Option A is correct because CloudTrail provides a digest file that contains a hash of each log file; you can use the AWS CLI command `aws cloudtrail validate-logs` to verify integrity. Option B is incorrect because S3 server-side encryption does not provide integrity verification. Option C is incorrect because CloudWatch Logs Insights does not validate log file integrity. Option D is incorrect because S3 Object Lock prevents deletion but not modification of existing objects; it does not verify integrity against a digest.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.