A company plans to migrate its application to AWS and run the application on Amazon EC2 instances.The application will have continuous usage for 1 year.
Which EC2 instance purchasing option will meet these requirements MOST cost-effectively?
Reserved Instances
Spot Instances
On-Demand Instances
Dedicated Hosts
Explanations:
Reserved Instances offer a significant discount compared to On-Demand pricing for applications with a continuous usage pattern over a year.
Spot Instances are often cheaper but are not suitable for continuous usage, as they can be terminated by AWS when prices exceed the bid price.
On-Demand Instances provide flexibility but are more expensive for long-term continuous usage compared to Reserved Instances.
Dedicated Hosts are more costly and designed for specific licensing or regulatory requirements, making them unnecessary for general application migration.
I arrange that the answer is:
Reserved Instances