Explanation:
Use 'Export' field in the Output section of the stack's template
To share information between stacks, export a stack's output values. Other stacks that are in the same AWS account and region can import the exported values.
To export a stack's output value, use the Export field in the Output section of the stack's template. To import those values, use the Fn::ImportValue function in the template for the other stacks.
Incorrect options:
Use 'Expose' field in the Output section of the stack's template - 'Expose' is a made-up option, and only given as a distractor.
Use Fn::ImportValue - To import the values exported by another stack, we use the Fn::ImportValue function in the template for the other stacks. This function is not useful for the current scenario.
Use Fn::Transform - The intrinsic function Fn::Transform specifies a macro to perform custom processing on part of a stack template. Macros enable you to perform custom processing on templates, from simple actions like find-and-replace operations to extensive transformations of entire templates. This function is not useful for the current scenario.
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An IT company utilizes AWS CloudFormation for managing its IT infrastructure and has designed a template to provision a stack that includes a Virtual Private Cloud (VPC) and a subnet. There is a requirement to use the output value of this subnet in a different stack.
As a Developer Associate, which of the following methods would you recommend to share this information with another stack?
A
Use 'Export' field in the Output section of the stack's template
B
Use Fn::Transform
C
Use Fn::ImportValue
D
Use 'Expose' field in the Output section of the stack's template