AWS Certified Solutions Architect – Associate (SAA-C03) — Question 339

A company has an application that is running on Amazon EC2 instances. A solutions architect has standardized the company on a particular instance family and various instance sizes based on the current needs of the company.

The company wants to maximize cost savings for the application over the next 3 years. The company needs to be able to change the instance family and sizes in the next 6 months based on application popularity and usage.

Which solution will meet these requirements MOST cost-effectively?

Answer options

Correct answer: A

Explanation

Compute Savings Plans provide the highest level of flexibility by allowing changes to instance families, sizes, operating systems, and regions while still delivering significant discounts over a 3-year term. In contrast, EC2 Instance Savings Plans and Standard Reserved Instances lock the commitment to a specific instance family, which prevents the company from switching families as required. Zonal Reserved Instances are primarily used for capacity reservations in a specific Availability Zone and do not offer the flexibility to change instance families across different regions.