Prepare for the Amazon Web Services (CISN 74A) Security Test with our interactive quizzes. Use multiple choice questions with detailed hints and explanations to ace your exam.

AWS CloudTrail is a service that provides detailed logs of user activity and API usage across various AWS resources. It captures information such as who made changes, what actions were performed, and when these actions took place. This insight is crucial for organizations to maintain security, compliance, and operational auditing.

By tracking the API calls made within an AWS account, CloudTrail helps administrators monitor user activity and detect anomalies or unauthorized actions. It also enables better incident response and forensic analysis by allowing users to trace back actions to specific users or roles.

The other options focus on different aspects: resource utilization and performance metrics generally pertain to services like Amazon CloudWatch, which monitors operational health; network traffic patterns are monitored through services like VPC Flow Logs; and automated backup solutions are provided by services like AWS Backup or Elastic Block Store snapshots. None of these functionalities relate to the core purpose of CloudTrail, which centers on capturing and logging user activities and API interactions.