The answer is to enable CloudTrail data events for S3 and create a CloudWatch metric filter to alert on PutObject calls without the x-amz-server-side-encryption header. This works because CloudTrail data events capture the full request parameters of each PutObject API call, including the x-amz-server-side-encryption header, and CloudWatch Logs can parse those JSON logs to detect when that header is missing, indicating an unencrypted upload. On the AWS Certified Security Specialty SCS-C02 exam, this scenario tests your understanding of how to combine CloudTrail data events with CloudWatch metric filters for real-time security monitoring, a common pattern for detecting unencrypted S3 uploads. The key trap is confusing data events with management events—management events do not log object-level operations like PutObject—or reaching for services like GuardDuty or Macie, which focus on threats and sensitive data, not encryption headers. Memory tip: think “Data events for object details, CloudWatch filter for missing headers.”
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 uses AWS CloudTrail to log all management events and data events for S3. The security team wants to detect any PutObject API calls that upload objects with server-side encryption disabled. Which solution is MOST efficient?
Use Amazon GuardDuty to detect unencrypted uploads.
Why wrong: GuardDuty does not inspect encryption headers.
B
Use Amazon Macie to scan S3 objects for missing encryption.
Why wrong: Macie scans for sensitive data, not encryption settings.
C
Enable S3 server access logs and parse them with Amazon Athena.
Why wrong: Server access logs are more complex to parse and not real-time.
D
Enable CloudTrail data events for S3 and create a CloudWatch metric filter to alert on PutObject calls without the x-amz-server-side-encryption header.
CloudTrail logs the encryption header, and CloudWatch alarms can alert.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable CloudTrail data events for S3 and create a CloudWatch metric filter to alert on PutObject calls without the x-amz-server-side-encryption header.
Option C is correct because CloudTrail data events log S3 PutObject calls, and a CloudWatch Logs metric filter can parse the requestParameters for x-amz-server-side-encryption header to detect missing encryption. Option A is wrong because S3 server access logs are text-based and not as easy to filter. Option B is wrong because GuardDuty does not check encryption headers. Option D is wrong because Macie detects sensitive data, not encryption status.
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.
✗
Use Amazon GuardDuty to detect unencrypted uploads.
Why it's wrong here
GuardDuty does not inspect encryption headers.
✗
Use Amazon Macie to scan S3 objects for missing encryption.
Why it's wrong here
Macie scans for sensitive data, not encryption settings.
✗
Enable S3 server access logs and parse them with Amazon Athena.
Why it's wrong here
Server access logs are more complex to parse and not real-time.
✓
Enable CloudTrail data events for S3 and create a CloudWatch metric filter to alert on PutObject calls without the x-amz-server-side-encryption header.
Why this is correct
CloudTrail logs the encryption header, and CloudWatch alarms can alert.
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: Enable CloudTrail data events for S3 and create a CloudWatch metric filter to alert on PutObject calls without the x-amz-server-side-encryption header. — Option C is correct because CloudTrail data events log S3 PutObject calls, and a CloudWatch Logs metric filter can parse the requestParameters for x-amz-server-side-encryption header to detect missing encryption. Option A is wrong because S3 server access logs are text-based and not as easy to filter. Option B is wrong because GuardDuty does not check encryption headers. Option D is wrong because Macie detects sensitive data, not encryption status.
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.