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Explanation:
When moving AWS CloudFormation templates across Regions, common causes for failures include region-specific resources and availability. Amazon Machine Images (AMIs) are specific to a Region, so an AMI ID from us-west-2 will not exist in eu-west-1 unless copied. Additionally, not all AWS services or specific instance types are available in every Region, which can cause a stack to fail. IAM users (Option A) are global, and permissions (Option C) are unlikely to be the region-specific cause if it successfully deployed in another region under the same role.
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Question 25
A SysOps administrator has an AWS CloudFormation template of the company’s existing infrastructure in us-west-2. The administrator 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.