Which instance purchasing option will meet these requirements MOST cost-effectively?

A company needs to run an application on Amazon EC2 instances. The instances cannot be interrupted at any time. The company needs an instance purch asing option that requires no long-term commitment or upfront payment.

Which instance purchasing option will meet these requirements MOST cost-effectively?
A . On-Demand Instances
B. Spot Instances
C. Dedicated Hosts
D. Reserved Instances

View Answer

Answer: A