AWS Certified Cloud Practitioner (CLF-C02) — Question 596

A company wants to rightsize its Amazon EC2 instances.

Which configuration change will meet this requirement with the LEAST operational overhead?

Answer options

• A. Add EC2 instances in another Availability Zone.
• B. Change the size and type of the EC2 instances based on utilization.
• C. Convert the payment method from On-Demand to Savings Plans.
• D. Reprovision the EC2 instances with a larger instance type.

Correct answer: B

Explanation

Rightsizing is the process of matching instance sizes and types to your actual workload performance and capacity requirements, which is directly achieved by modifying EC2 instance configurations based on utilization. While Savings Plans reduce costs, they do not change the instance size, and adding instances or blindly upgrading to larger types does not address the core goal of rightsizing based on actual resource needs.