Correct answer - "It is a SAM template" : The AWS::Serverless transform is
specifically used for transforming an entire template written in the AWS Serverless Application
Model (AWS SAM) syntax into a compliant AWS CloudFormation template. Read more:
"Intrinsic function" - Functions in templates to assign values to properties that are not
available until runtime. They usually start with Fn:: or !. Example:
!Sub or Fn::Sub
"Lambda function definition" - A lambda function in CloudFormation would be created with
AWS::Lambda::Function
"It's a CloudFormation Parameter" - They are part of the Parameters block and will
look like this:
Parameters:
InstanceTypeParameter:
Type: String
Default: t2.micro
AllowedValues:
- t2.micro
- m1.small
- m1.large
Description: Enter t2.micro, m1.small, or m1.large. Default is t2.micro.