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A company needs to know which user was responsible for terminating several critical Amazon Elastic Compute Cloud (Amazon EC2) Instances. Where can the customer find this information?
A
AWS Trusted Advisor
B
Amazon EC2 instance usage report
C
Amazon CloudWatch
D
AWS Cloud Trail logs
Explanation:
AWS CloudTrail is the correct service for tracking user activity and API calls in AWS. Here's why:
AWS CloudTrail logs all API activity across AWS services, including who performed actions, what actions were performed, when they occurred, and from which IP address
For EC2 instance terminations, CloudTrail would record:
The specific user or role that terminated the instances
The exact timestamp of the termination
The instance IDs that were terminated
The API call used (TerminateInstances)
Why the other options are incorrect:
A. AWS Trusted Advisor - Provides cost optimization, security, and performance recommendations, not detailed user activity logs
B. Amazon EC2 instance usage report - Shows billing and usage metrics, not user attribution for specific actions
C. Amazon CloudWatch - Monitors resource performance and operational health, but doesn't track who performed specific API actions
CloudTrail is specifically designed for governance, compliance, and auditing purposes, making it the ideal service for tracking user activity and API calls across AWS services.