You work as an Exchange Administrator for ABC.com. The company has a Windows 2008
Active Directorybased network. The network contains an Exchange Server 2010
organization.
An employee named John has recently left the company. You need to delete the mailbox
and the user account for John. You also need to remove the mailbox from the Exchange
database.
Which of the following commands will you enter in the Exchange Management Shell to
accomplish the task?

A.
Deletemailbox -Identity john@ABC.com.

B.
Removemailbox -Identity john@ABC.com -Permanent $true.

C.
Removemailbox -Identity john@ABC.com.

D.
Disablemailbox john@ABC.com.