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Answer: The template referenced an Amazon Machine Image (AMI) that is not available in eu-west-1., The template requested services that do not exist in eu-west-1.
Amazon Machine Images (AMIs) are Region-specific. An AMI ID that exists in `us-west-2` will generally not exist in `eu-west-1`, causing the stack deployment to fail if referenced directly (Option B). Additionally, not all AWS services or instance types are available in every AWS Region. If the template requests a service or feature unavailable in `eu-west-1`, the deployment will fail (Option D). IAM users are global, not regional, so Option A is incorrect. CloudFormation can definitely be used to create new stacks, making Option E incorrect.
Author: Ritesh Yadav
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Question #65 A CloudOps engineer has an AWS CloudFormation template of the company’s existing infrastructure in us-west-2. The CloudOps engineer attempts to use the template to launch a new stack in eu-west-1, but the stack only partially deploys, receives an error message, and then rolls back. Why would this template fail to deploy? (Choose two.)
A
The template referenced an IAM user that is not available in eu-west-1.
B
The template referenced an Amazon Machine Image (AMI) that is not available in eu-west-1.
C
The template did not have the proper level of permissions to deploy the resources.
D
The template requested services that do not exist in eu-west-1.
E
CloudFormation templates can be used only to update existing services.
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