AWS Certified Cloud Practitioner (CLF-C02) — Question 39

A company has an uninterruptible application that runs on Amazon EC2 instances. The application constantly processes a backlog of files in an Amazon Simple Queue Service (Amazon SQS) queue. This usage is expected to continue to grow for years.
What is the MOST cost-effective EC2 instance purchasing model to meet these requirements?

Answer options

• A. Spot Instances
• B. On-Demand Instances
• C. Savings Plans
• D. Dedicated Hosts

Correct answer: C

Explanation

Savings Plans provide a flexible pricing model that allows for significant cost savings over a longer term commitment, making it the most cost-effective choice for a continuously growing workload. Spot Instances may not guarantee availability, On-Demand Instances are more expensive for consistent usage, and Dedicated Hosts are typically used for licensing requirements rather than cost efficiency.