How can you check the operational validity of your AWS CloudFormation template?
To check the operational validity, you need to attempt to create the stack.
There is no way to check the operational validity of your AWS CloudFormation template.
To check the operational validity, you need a sandbox or test area for AWS CloudFormation stacks.
To check the operational validity, you need to use the aws cloudformation validate-template command.
In my opinion, the answer is:
To check the operational validity, you need to attempt to create the stack.