How can the developer incorporate the list of approved instance types in the CloudFormation template?

A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across multiple AWS accounts. The developer must choose the EC2 instances from a list of approved instance types.

How can the developer incorporate the list of approved instance types in the CloudFormation template?
A . Create a separate CloudFormation template for each EC2 instance type in the list.
B . In the Resources section of the CloudFormation template, create resources for each EC2 instance type in the list.
C . In the CloudFormation template, create a separate parameter for each EC2 instance type in the list.
D . In the CloudFormation template, create a parameter with the list of EC2 instance types as AllowedValues.

View Answer

Answer: D

Explanation:

In the CloudFormation template, the developer should create a parameter with the list of approved EC2 instance types as AllowedValues. This way, users can select the instance type they want to use when launching the CloudFormation stack, but only from the approved list.