Explanation: Amazon IAM provides a mechanism to authenticate users when accessing Amazon Web Services. AWS Identity and Access Management (IAM) is a web service that helps you securely control ac-cess to AWS resources for your users. You use IAM to control who can use your AWS resources (authentication) and what resources they can use and in what ways (authorization). Reference:
http://docs.aws.amazon.com/IAM/latest/UserGuide/Using_WorkingWithGr…