CloudFormation and Elastic Beanstalk are free of use.

True (CloudFormation and Elastic Beanstalk are free of use, but you do pay for the resources created.)

You need to use Chef or Puppet. Which AWS service should you use?

OpsWorks (AWS OpsWorks is a configuration management service that provides managed instances of Chef and Puppet.)

Which of the following allows you to deploy any AWS Infrastructure as a Code?

CloudFormation (AWS CloudFormation provides a common language for you to model and provision AWS and third party application resources in your cloud environment. It allows you to deploy Infrastructure as a Code.)

Which service is referred to as a Platform as a Service (PaaS)?

Elastic Beanstalk (Elastic Beanstalk is a Platform as a Service (PaaS). You only manage data and applications. AWS Elastic Beanstalk makes it even easier for developers to quickly deploy and manage applications in the AWS Cloud)

What is called the declaration of the AWS resources that make up a stack?

CloudFormation Templates (AWS CloudFormation templates are JSON or YAML-formatted text files. They are declarations of the AWS resources that make up a stack.)