AWS - CloudFormation
Which parameter type should you use to allow users to select from a predefined list of instance types in CloudFormation?
Which parameter type should you use to allow users to select from a predefined list of instance types in CloudFormation?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify parameter types for predefined lists
CloudFormation supports AWS-specific parameter types like AWS::EC2::Instance::Type for instance types.Step 2: Match the correct type for instance selection
AWS::EC2::Instance::Type is the AWS-specific type for EC2 instance types, enabling validation and selection from valid values.Final Answer:
AWS::EC2::Instance::Type -> Option BQuick Check:
Parameter type for instance = AWS::EC2::Instance::Type [OK]
Quick Trick: Use AWS-specific parameter types for validated selections [OK]
Common Mistakes:
- Using generic String instead of AWS-specific types
- Confusing CommaDelimitedList with single selection
- Using Number type for instance types
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