This SCS-C02 practice question tests your understanding of security logging and monitoring. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 API activity. The security team wants to ensure that any modification to CloudTrail configuration is logged and that the logs are tamper-proof. Which feature should be enabled?
S3 MFA Delete on the CloudTrail S3 bucket
Why wrong: Protects deletion only.
S3 Versioning on the CloudTrail S3 bucket
Why wrong: Does not validate integrity.
CloudTrail Log File Integrity Validation
Provides tamper-proofing.
CloudWatch Logs log stream encryption
Why wrong: Does not validate integrity.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
CloudTrail Log File Integrity Validation
Option B is correct because CloudTrail Log File Integrity Validation uses SHA-256 hashing and digital signatures to detect tampering. Option A is wrong because S3 Versioning does not prevent tampering of logs. Option C is wrong because MFA Delete protects against deletion, not modification. Option D is wrong because CloudWatch Logs does not provide integrity validation.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
S3 MFA Delete on the CloudTrail S3 bucket
Why it's wrong here
Protects deletion only.
S3 Versioning on the CloudTrail S3 bucket
Why it's wrong here
Does not validate integrity.
CloudTrail Log File Integrity Validation
Why this is correct
Provides tamper-proofing.
Related concept
Static NAT maps one inside address to one outside address.
CloudWatch Logs log stream encryption
Why it's wrong here
Does not validate integrity.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
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
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SCS-C02 NAT questions on configuration and troubleshooting.
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FAQ
Security Logging and Monitoring — This question tests Security Logging and Monitoring — Static NAT maps one inside address to one outside address..
The correct answer is: CloudTrail Log File Integrity Validation — Option B is correct because CloudTrail Log File Integrity Validation uses SHA-256 hashing and digital signatures to detect tampering. Option A is wrong because S3 Versioning does not prevent tampering of logs. Option C is wrong because MFA Delete protects against deletion, not modification. Option D is wrong because CloudWatch Logs does not provide integrity validation.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SCS-C02 NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
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.
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