AWS Certified Cloud Practitioner (CLF-C02) — Question 371

A company is migrating its on-premises server to an Amazon EC2 instance. The server must stay active at all times for the next 12 months.

Which EC2 pricing option is the MOST cost-effective for the company's workload?

Answer options

Correct answer: D

Explanation

Reserved Instances are the most cost-effective choice because they offer a significant discount compared to On-Demand pricing in exchange for a 1-year commitment, which perfectly fits the company's 12-month continuous workload requirement. Spot Instances are unsuitable because they can be terminated with little notice, violating the requirement to remain active at all times. On-Demand and Dedicated Hosts would result in much higher costs for a predictable, steady-state workload.