Your team Is excited about the use of AWS because now they have access to programmable Infrastructure”
You have been asked to manage your AWS infrastructure in a manner similar to the way you might manage
application code You want to be able to deploy exact copies of different versions of your infrastructure, stage
changes into different environments, revert back to previous versions, and identify what versions are running at
any particular time (development test QA. production).
Which approach addresses this requirement?

A.
Use cost allocation reports and AWS Opsworks to deploy and manage your infrastructure.

B.
Use AWS CloudWatch metrics and alerts along with resource tagging to deploy and manage your
infrastructure.

C.
Use AWS Beanstalk and a version control system like GIT to deploy and manage your infrastructure.

D.
Use AWS CloudFormation and a version control system like GIT to deploy and manage your infrastructure.

Explanation:
http://aws.amazon.com/opsworks/faqs/