An organiz

ation is trying to create various IAM users. Which of the below mentioned options is not a valid IAM username?

A. John.cloud

B. john@cloud

C. John=cloud

D. john#cloud

Explanation:

AWS Identity and Access Management is a web service which

allows organizations to manage users and user permissions for various AWS services. Whenever the organization is creating an IAM user, there should be a unique ID for each user. The names of users, groups, roles, instance profiles must be alphanumeric, inc

luding the following common characters: plus (+., equal (=., comma (,., period (.., at (@., and dash (-..