ANS-C01 Network Security, Compliance and Governance Practice Question
A company wants to audit all changes to security group rules in a VPC. Which AWS service should be used to record these changes?
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 records API calls made to the AWS environment, including calls to modify security group rules (such as AuthorizeSecurityGroupIngress, RevokeSecurityGroupEgress, etc.). This provides a detailed audit trail of who made the change, when, and from where. AWS Config can record resource configuration changes and can provide a history of security group rule changes, but it is not the primary service for auditing API calls; it focuses on configuration compliance and resource relationships. VPC Flow Logs capture metadata about network traffic, not configuration changes. CloudWatch monitors performance metrics and logs. Therefore, CloudTrail is the correct answer.
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 CloudTrail
Why this is correct
CloudTrail records API calls for auditing.
- ✗
AWS Config
Why it's wrong here
Config records resource state, but CloudTrail is better for API audit.
- ✗
VPC Flow Logs
Why it's wrong here
Flow logs capture network traffic metadata.
- ✗
Amazon CloudWatch
Why it's wrong here
CloudWatch monitors metrics, not API calls.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 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 ANS-C01 exam.