AWS Certified Cloud Practitioner — Question 853

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. Modifying the EC2 instance type and size based on utilization metrics directly addresses rightsizing with minimal effort. Other options, such as changing the payment model to Savings Plans or adding instances in another Availability Zone, do not align the instance capacity with actual performance demands.