AWS Certified Cloud Practitioner (CLF-C02) — Question 668

A company wants to migrate critical on-premises production systems to Amazon EC2 instances. The production instances will be used for at least 3 years. The company wants a pricing option that will minimize cost.

Which solution will meet these requirements?

Answer options

Correct answer: B

Explanation

Reserved Instances are the most cost-effective choice for this scenario because they offer a significant discount (up to 72%) compared to On-Demand pricing in exchange for a 1-year or 3-year commitment. Spot Instances are unsuitable for critical production workloads because they can be interrupted with short notice, while On-Demand Instances would be much more expensive over a 3-year period. The AWS Free Tier is designed for limited trial purposes and cannot support long-term production systems.