You want to create a parameter that lets users choose a VPC ID but also provides a default value. Which is the correct way to define this parameter?

hard📝 Application Q8 of 15

AWS - CloudFormation

A"Parameters": {"VpcId": {"Type": "AWS::EC2::VPC::Id", "Default": "vpc-0abc1234def567890"}}

B"Parameters": {"VpcId": {"Type": "String", "Default": "vpc-0abc1234def567890"}}

C"Parameters": {"VpcId": {"Type": "AWS::EC2::Subnet::Id", "Default": "vpc-0abc1234def567890"}}

D"Parameters": {"VpcId": {"Type": "List<AWS::EC2::VPC::Id>", "Default": "vpc-0abc1234def567890"}}

Step-by-Step Solution

Solution:

Step 1: Identify correct AWS parameter type for VPC ID
The type AWS::EC2::VPC::Id validates VPC IDs specifically.
Step 2: Check default value and type compatibility
Default value is a single VPC ID string, matching the type.
Final Answer:
Parameter with type AWS::EC2::VPC::Id and default VPC ID -> Option A
Quick Check:
Use AWS::EC2::VPC::Id type with matching default [OK]

Quick Trick: Match AWS parameter type with default value format [OK]

Common Mistakes:

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