- A
AWS Config managed rules
Why wrong: Incorrect. AWS Config managed rules evaluate the compliance of resource configurations (e.g., whether S3 bucket versioning is enabled) but do not record API-level activity. They cannot log GetObject or PutObject calls.
- B
Amazon S3 server access logging
Why wrong: Incorrect. S3 server access logs provide detailed records about requests made to a bucket, but they do not include the caller identity (IAM user or role) reliably, and they are not directly queryable by Amazon Athena without additional setup. AWS CloudTrail data events offer better integration for auditing.
- C
AWS CloudTrail data events
Correct. AWS CloudTrail data events capture object-level API operations on Amazon S3 objects, including GetObject and PutObject. These logs include caller identity, source IP, and request time. They can be delivered to an S3 bucket and queried with Amazon Athena for security audits.
- D
Amazon GuardDuty
Why wrong: Incorrect. Amazon GuardDuty is a threat detection service that uses machine learning and threat intelligence to identify suspicious activity. It does not record every API call by default and is not designed to provide a complete audit trail of all GetObject and PutObject requests.
CLF-C02 Security and Compliance Practice Question
This CLF-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 stores sensitive customer data in an Amazon S3 bucket. The security team wants to record every GetObject and PutObject API call made against the bucket, including the identity of the caller, the source IP address, and the time of the request. They need to store these records in a separate centralized S3 bucket and analyze them using Amazon Athena for security audits. Which AWS feature should the security team enable?
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
AWS CloudTrail data events
AWS CloudTrail data events (Option C) are the correct choice because they capture detailed information about S3 object-level API operations such as GetObject and PutObject, including the caller identity, source IP address, and request time. These logs can be delivered to a centralized S3 bucket and queried using Amazon Athena for security audits, meeting all stated requirements.
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.
- ✗
AWS Config managed rules
Why it's wrong here
Incorrect. AWS Config managed rules evaluate the compliance of resource configurations (e.g., whether S3 bucket versioning is enabled) but do not record API-level activity. They cannot log GetObject or PutObject calls.
When this WOULD be correct
A company wants to automatically detect and remediate S3 buckets that are publicly accessible. Enabling AWS Config managed rules (e.g., s3-bucket-public-read-prohibited) would continuously evaluate bucket policies and trigger remediation actions.
- ✗
Amazon S3 server access logging
Why it's wrong here
Incorrect. S3 server access logs provide detailed records about requests made to a bucket, but they do not include the caller identity (IAM user or role) reliably, and they are not directly queryable by Amazon Athena without additional setup. AWS CloudTrail data events offer better integration for auditing.
When this WOULD be correct
A company needs to track all HTTP requests to an S3 bucket for operational monitoring, including request types, response status, and total bytes transferred, but does not require caller identity or IP address. They plan to store logs in another S3 bucket and analyze them with log analysis tools.
- ✓
AWS CloudTrail data events
Why this is correct
Correct. AWS CloudTrail data events capture object-level API operations on Amazon S3 objects, including GetObject and PutObject. These logs include caller identity, source IP, and request time. They can be delivered to an S3 bucket and queried with Amazon Athena for security audits.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon GuardDuty
Why it's wrong here
Incorrect. Amazon GuardDuty is a threat detection service that uses machine learning and threat intelligence to identify suspicious activity. It does not record every API call by default and is not designed to provide a complete audit trail of all GetObject and PutObject requests.
When this WOULD be correct
A company wants to continuously monitor S3 buckets for suspicious access patterns, such as unusual data exfiltration or anomalous API calls, and receive automated alerts. GuardDuty would be the correct choice for threat detection and alerting.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CLF-C02 exam frequently reuses these exact scenarios with slightly different constraints.
✓AWS CloudTrail data eventsCorrect answer▾
Why this is correct
Correct. AWS CloudTrail data events capture object-level API operations on Amazon S3 objects, including GetObject and PutObject. These logs include caller identity, source IP, and request time. They can be delivered to an S3 bucket and queried with Amazon Athena for security audits.
✗AWS Config managed rulesWrong answer — click to see why▾
Why this is wrong here
AWS Config managed rules evaluate resource configurations for compliance, but they do not record individual API calls like GetObject or PutObject, nor do they capture caller identity, source IP, or request time.
★ When this WOULD be the correct answer
A company wants to automatically detect and remediate S3 buckets that are publicly accessible. Enabling AWS Config managed rules (e.g., s3-bucket-public-read-prohibited) would continuously evaluate bucket policies and trigger remediation actions.
Why candidates choose this
Candidates may confuse AWS Config's compliance monitoring with logging API calls, assuming it records all changes and access events, when it actually focuses on configuration drift rather than data-level operations.
✗Amazon S3 server access loggingWrong answer — click to see why▾
Why this is wrong here
Amazon S3 server access logging provides records of requests made to a bucket, but it does not capture the identity of the caller (e.g., IAM user or role) or the source IP address in a structured format suitable for Athena analysis. It logs details like requester type (e.g., AWS account ID) but not the specific caller identity or IP address required by the question.
★ When this WOULD be the correct answer
A company needs to track all HTTP requests to an S3 bucket for operational monitoring, including request types, response status, and total bytes transferred, but does not require caller identity or IP address. They plan to store logs in another S3 bucket and analyze them with log analysis tools.
Why candidates choose this
Candidates may confuse server access logging with CloudTrail data events because both can log S3 API calls, but server access logging is simpler and often used for basic request tracking, leading them to overlook the requirement for caller identity and IP address.
✗Amazon GuardDutyWrong answer — click to see why▾
Why this is wrong here
Amazon GuardDuty is a threat detection service that monitors for malicious activity, but it does not record detailed data events like GetObject and PutObject API calls with caller identity and source IP for auditing purposes.
★ When this WOULD be the correct answer
A company wants to continuously monitor S3 buckets for suspicious access patterns, such as unusual data exfiltration or anomalous API calls, and receive automated alerts. GuardDuty would be the correct choice for threat detection and alerting.
Why candidates choose this
Candidates may confuse GuardDuty's monitoring capabilities with auditing features, thinking it can log all API calls, but GuardDuty focuses on threat detection rather than detailed event recording for compliance audits.
Analysis generated from the official CLF-C02blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the distinction between S3 server access logs (which log requests but lack caller identity) and CloudTrail data events (which capture full API details including identity), leading candidates to mistakenly choose server access logging for security auditing.
Detailed technical explanation
How to think about this question
CloudTrail data events are enabled at the bucket level (or trail level) and log object-level operations with a 15-minute delivery SLA. Unlike management events, data events generate a high volume of logs, so they are often selectively enabled for critical buckets to avoid excessive costs. Athena can query these logs directly using a partitioned table structure (e.g., by date and account) for efficient analysis, and the logs include fields like `userIdentity`, `sourceIPAddress`, and `eventTime` for forensic investigations.
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.
TExam Day Tips
- 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.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Security and Compliance — study guide chapter
Learn the concepts, then practise the questions
- →
Security and Compliance practice questions
Targeted practice on this topic area only
- →
All CLF-C02 questions
1,024 questions across all exam domains
- →
AWS Certified Cloud Practitioner CLF-C02 study guide
Full concept coverage aligned to exam objectives
- →
CLF-C02 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related CLF-C02 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Cloud Concepts practice questions
Practise CLF-C02 questions linked to Cloud Concepts.
Security and Compliance practice questions
Practise CLF-C02 questions linked to Security and Compliance.
Cloud Technology and Services practice questions
Practise CLF-C02 questions linked to Cloud Technology and Services.
Billing, Pricing, and Support practice questions
Practise CLF-C02 questions linked to Billing, Pricing, and Support.
AWS shared responsibility model practice questions
Practise CLF-C02 questions linked to AWS shared responsibility model.
AWS IAM practice questions
Practise CLF-C02 questions linked to AWS IAM.
AWS pricing practice questions
Practise CLF-C02 questions linked to AWS pricing.
AWS support plans practice questions
Practise CLF-C02 questions linked to AWS support plans.
AWS S3 practice questions
Practise CLF-C02 questions linked to AWS S3.
AWS EC2 practice questions
Practise CLF-C02 questions linked to AWS EC2.
Practice this exam
Start a free CLF-C02 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this CLF-C02 question test?
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: AWS CloudTrail data events — AWS CloudTrail data events (Option C) are the correct choice because they capture detailed information about S3 object-level API operations such as GetObject and PutObject, including the caller identity, source IP address, and request time. These logs can be delivered to a centralized S3 bucket and queried using Amazon Athena for security audits, meeting all stated requirements.
What should I do if I get this CLF-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 →
Keep practising
More CLF-C02 practice questions
- A company publishes a message each time a new product is added to its catalogue. Three services need to receive this mes…
- A media company stores frequently accessed video thumbnails in Amazon S3. The thumbnails are read multiple times every d…
- A company needs a service to translate domain names (like www.example.com) into IP addresses, check the health of their…
- A startup runs an application on AWS and receives a monthly bill that charges exactly for the number of compute hours us…
- A financial institution runs its core banking application on-premises due to regulatory requirements. It has connected i…
- A company wants to run a MySQL database in AWS without managing database software installation, applying patches, settin…
Last reviewed: Jun 30, 2026
This CLF-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 CLF-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.