AWS Certified Cloud Practitioner (CLF-C02) — Question 143

A company needs to continuously run an experimental workload on an Amazon EC2 instance and stop the instance after 12 hours.

Which instance purchasing option will meet this requirement MOST cost-effectively?

Answer options

Correct answer: A

Explanation

On-Demand Instances allow for flexible hourly usage, making them ideal for short-term workloads like a 12-hour experiment. Reserved Instances and Dedicated Instances involve long-term commitments and upfront costs, while Spot Instances may not guarantee availability for the duration needed.