单项选择题

A.Configure the server to have static IP settings. 
B.Install the DNS Server service on Server1 and configure DNS to use a forwarder. 
C.Add an entry to the %systemroot%\system32\drivers\etc\hosts file for update.microsoft.com. 
D.Add an entry to the %systemroot%\system32\drivers\etc\lmhosts file for update.microsoft.com.