AWS Certified Cloud Practitioner (CLF-C02) — Question 329

Which AWS service or tool can provide rightsizing recommendations for Amazon EC2 resources at no additional cost?

Answer options

• A. AWS Well-Architected Tool
• B. Amazon CloudWatch
• C. AWS Cost Explorer
• D. Amazon S3 analytics

Correct answer: C

Explanation

AWS Cost Explorer includes a built-in rightsizing recommendations feature that analyzes EC2 utilization and suggests cost-saving adjustments at no additional cost. While Amazon CloudWatch monitors metrics and the AWS Well-Architected Tool evaluates architectural best practices, they do not directly provide automated EC2 rightsizing recommendations. Amazon S3 analytics is designed specifically for analyzing storage patterns rather than compute resources.