Correct answer - "Groups" : A template is a JSON- or YAML-formatted text file that describes your
AWS infrastructure. The following examples show an AWS CloudFormation template structure and its
sections. No group section exists.
Incorrect:
"Parameters" - Values to pass to your template at runtime
"Mappings" - A mapping of keys and associated values that you can use to specify conditional
parameter values
"Metadata" - Objects that provide additional information about the template