You work as the help desk support technician at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. All client computers on the Domain.com network run Windows XP Professional A user named Clive Wilson reports that when he attempts to log on to his computer after returning from lunch, he is presented with the error message below:
“The system could not log you on. Make sure your User name and domain are correct, and then type your password again. Letters in password must be typed using the correct case.” Clive Wilson verifies that he is utilizing the same user name and password that he utilized when he successfully logged on in the morning and was able to access resources on the Domain.com network. After you reset Clive Wilson’s password, he attempts to log on with the new password and receives the same error message.
You then verify that other users can log on to their computers and that the CAPS LOCK key is not enabled on Clive Wilson’s keyboard.
Which of the following is the task that you should complete to ensure that Clive Wilson is able to log on to his computer with his user credentials?

A.
Instruct Clive Wilson to restart his computer in Safe Mode before logging on to his computer.

B.
Instruct Clive Wilson to restart his computer in Safe Mode with Networking before logging on to his computer.

C.
Instruct Clive Wilson to select the domain name of the company from the Log on to field before logging on to his computer.

D.
Instruct Clive Wilson to clear the Log on using dial-up connection check box before logging on to his computer.

Explanation:
A username always consist of two parts, the domain and the username (for example Domain.comCliveWilson (or CliveWilson@ Domain.com) or in the case of a workgroup computernameusername (or username@computername). If the password is correct and the username is typed correctly then there is only one more part that can produce the error message shown above, the domain that the username belongs to.