Authenticating via access control methods

AWS offers the ability to access resources through a wide range of access control mechanisms, with an array of authentication methods. In this section, I want to cover some of them (that you will need to know about for the exam) in greater detail.

Usernames and passwords

I already mentioned IAM usernames and passwords, which are used to log in to your AWS account. These usernames are created by an administrator of IAM; at the same time, they will issue you with a password. Depending on how the administrator configured your account, you may be required to change your password upon the first successful authentication to AWS.

If no password policy has been configured, passwords for accounts...