AWS Certified Security – Specialty — Question 41

A Security Administrator is performing a log analysis as a result of a suspected AWS account compromise. The Administrator wants to analyze suspicious AWS
CloudTrail log files but is overwhelmed by the volume of audit logs being generated.
What approach enables the Administrator to search through the logs MOST efficiently?

Answer options

• A. Implement a ג€write-onlyג€ CloudTrail event filter to detect any modifications to the AWS account resources.
• B. Configure Amazon Macie to classify and discover sensitive data in the Amazon S3 bucket that contains the CloudTrail audit logs.
• C. Configure Amazon Athena to read from the CloudTrail S3 bucket and query the logs to examine account activities.
• D. Enable Amazon S3 event notifications to trigger an AWS Lambda function that sends an email alarm when there are new CloudTrail API entries.

Correct answer: C

Explanation

The correct answer is C because Amazon Athena allows for efficient querying of large datasets stored in S3, making it ideal for analyzing CloudTrail logs. Option A does not help with searching logs but rather filters events, while options B and D focus on data classification and notifications, respectively, rather than efficient log analysis.