You work as the network administrator at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. Domain.com has its headquarters located in London and branch office located in Paris. All servers on the Domain.com network run Windows Server 2008 and all client computers run Windows Vista.
During the course of the day you receive instruction from Domain.com to create one hundred user accounts created for users located across three different sites. The Domain.com network users have later reported that they receive the error message below when trying to log on:
“The username or password is incorrect”
You have later determined that the users accounts exist and are enabled and the passwords are correct. Domain.com recently requested that you identify the cause of the problem whilst ensuring that the network users are able to lo on using their accounts.
What should you do?

A.
You should consider having the Active Directory Domains and Trusts utility used.

B.
You should consider having the Rstools utility used.

C.
You should consider having the Repadmin utility used.

D.
You should consider having the Rsdiag utility used.