An AWS Elastic Beanstalk application needs to be deployed in multiple regions and requires a different Amazon Machine Image (AMI) in each region.
Which AWS CloudFormation template key can be used to specify the correct AMI for each region?
Parameters
Outputs
Mappings
Resources
Explanations:
Parameters are used for input values provided by the user at stack creation, not for region-specific AMI mappings.
Outputs define the values that are returned after stack creation, not for specifying region-specific resources.
Mappings allow you to create region-specific configurations, such as the correct AMI for each region.
Resources define the actual AWS resources to be created, but AMI selection based on region is handled by Mappings.
I chart that the answer is:
Mappings