You are the administrator for a network that supports a mixture of Windows NT 4 Workstation,
Windows 2000, and Windows XP Professional. You are preparing to uABCrade your network
servers from Windows NT Server to Windows Server 2003.What is the strongest level of network
authentication that you can configure your Windows domain to use in its current configuration
(without installing third-party software)?

A.
Kerberos

B.
LM

C.
NTLM

D.
NTLM version 2