- A
Amazon CloudWatch Logs
Why wrong: CloudWatch Logs is used for monitoring and storing logs, but it does not directly capture API calls or provide log file validation.
- B
AWS CloudTrail
CloudTrail records API activity across AWS services and supports log file validation.
- C
AWS Config
Why wrong: AWS Config evaluates resource configurations against desired policies, but does not capture API calls.
- D
AWS GuardDuty
Why wrong: GuardDuty is a threat detection service that uses logs from CloudTrail, VPC Flow Logs, and DNS, but it does not generate the logs itself.
Question 985 of 1,000
CCSP Cloud Security Operations Practice Question
This CCSP practice question tests your understanding of cloud security operations. 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 security engineer needs to ensure that all API calls made to AWS resources are logged for auditing purposes. Which AWS service should be enabled to capture management events, data events, and provide log file validation?
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
AWS CloudTrail is the correct service because it is specifically designed to log API calls and actions taken within an AWS account, capturing management events (e.g., creating or deleting resources) and data events (e.g., S3 object-level operations). It also provides log file validation through digital signatures using SHA-256 hashing and RSA, ensuring the integrity and authenticity of the log files after they have been delivered.
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.
- ✗
Amazon CloudWatch Logs
Why it's wrong here
CloudWatch Logs is used for monitoring and storing logs, but it does not directly capture API calls or provide log file validation.
- ✓
AWS CloudTrail
Why this is correct
CloudTrail records API activity across AWS services and supports log file validation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
AWS Config
Why it's wrong here
AWS Config evaluates resource configurations against desired policies, but does not capture API calls.
- ✗
AWS GuardDuty
Why it's wrong here
GuardDuty is a threat detection service that uses logs from CloudTrail, VPC Flow Logs, and DNS, but it does not generate the logs itself.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between services that generate logs (CloudTrail) versus services that store or analyze logs (CloudWatch Logs, GuardDuty), leading candidates to confuse CloudWatch Logs as the primary logging service for API calls.
Detailed technical explanation
How to think about this question
CloudTrail log file validation uses a digest file that contains a hash of each log file, signed with a private key from AWS’s public key infrastructure (PKI). To verify integrity, you can use the AWS CLI command `aws cloudtrail validate-logs`, which checks the SHA-256 hash and the RSA signature against the public key published in the AWS documentation. In a real-world scenario, enabling data events for S3 buckets can generate a high volume of logs, so you must carefully select specific buckets or prefixes to avoid excessive costs and storage.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
Quick reference
Asymmetric Encryption Algorithm Comparison
| Algorithm | Key Exchange | Signatures | Equivalent Security Key | Notes |
|---|---|---|---|---|
| RSA-3072 | Yes | Yes | 128-bit | Widely deployed; slow for bulk data |
| ECDSA P-256 | No | Yes | 128-bit | Fast signatures; standard TLS certs |
| ECDH / ECDHE | Yes | No | 128-bit | Perfect forward secrecy in TLS 1.3 |
| DH / DHE | Yes | No | 128-bit (3072-bit key) | Replaced by ECDHE in modern TLS |
| Ed25519 | No | Yes | ~128-bit | SSH keys, modern PKI |
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.
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FAQ
Questions learners often ask
What does this CCSP question test?
Cloud Security Operations — This question tests Cloud Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS CloudTrail — AWS CloudTrail is the correct service because it is specifically designed to log API calls and actions taken within an AWS account, capturing management events (e.g., creating or deleting resources) and data events (e.g., S3 object-level operations). It also provides log file validation through digital signatures using SHA-256 hashing and RSA, ensuring the integrity and authenticity of the log files after they have been delivered.
What should I do if I get this CCSP 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 →
Last reviewed: Jul 4, 2026
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.
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