Which solution will meet these requirements?
Set up a backup administrator account that the company can use to log in if the company loses the MFA device.
Add multiple MFA devices for the root user account to handle the disaster scenario.
Create a new administrator account when the company cannot access the root account.
Attach the administrator policy to another IAM user when the company cannot access the root account.
Explanations:
While setting up a backup administrator account could be helpful for administrative tasks, it does not directly address the root account MFA issue, and would not provide a means of accessing the root account if the MFA device is lost.
Adding multiple MFA devices for the root user account ensures that if one device is lost, access can still be gained through the backup device. AWS allows adding multiple MFA devices for the root user, ensuring redundancy.
Creating a new administrator account does not help recover access to the root account if the MFA device is lost. Root account access is crucial for account management, and creating new admin accounts will not resolve MFA device loss.
Attaching the administrator policy to another IAM user does not solve the problem of losing access to the root account. IAM users cannot manage root account MFA settings, so this would not help in the scenario of losing the root user MFA device.
I strategize that the answer is:
Add multiple MFA devices for the root user account to handle the disaster scenario.