Because it is looking outside the network first, and once that fails it looks inward.
This is the sort of thing I want to practice a bit more before the MCSA/E tests.
I have several older machines with piles of RAM, so i'm thinking about setting up a domain at home to practice with.
ferences to a server are in the XP client exam so it's good to have handy. Reading is good, but DOING is better. Set one up. You dont need nearly as much under the hood as I have to teach yourself stuff like Remote Installation Service (so cool to boot a machine from it's NIC and see an unattended installation take place).