How can you reference a value from a mapping in a CloudFormation template to select an AMI ID based on region?

hard📝 Application Q9 of 15

AWS - CloudFormation

AUse the Fn::GetAtt function on the mapping

BUse the Ref function on the mapping name

CUse the Fn::FindInMap intrinsic function

DUse the Outputs section to retrieve mapping values

Step-by-Step Solution

Solution:

Step 1: Understand mapping usage
Mappings store static key-value pairs like region to AMI mappings.
Step 2: Identify correct intrinsic function
Fn::FindInMap retrieves values from mappings using keys.
Step 3: Differentiate from other functions
Ref returns parameters or resources, GetAtt gets resource attributes, Outputs expose values but do not retrieve mapping data.
Final Answer:
Use the Fn::FindInMap intrinsic function -> Option C
Quick Check:
Mapping lookup = Fn::FindInMap = A [OK]

Quick Trick: Use Fn::FindInMap to get values from mappings [OK]

Common Mistakes:

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