A4A;
Asking questions is definitely the best way to get to meet someone. Here is the but, I had found that no matter how hard you think the questions are, there is always more than one possible answer. I found out that, after passing a written test about what DNS is and what it does, the person had a hard time locating the application used to manage it.
What I decided to do was a "practical test". Write down a series of instructions for someone to follow in the creation of a DC under 2003 (Forest name, domain name, etc.) complete with AD integrated DNS, WINS (??) and DHCP with three or four different scopes. Give them a PC with a working copy of WK3 and whatever drivers they will need, even some they won't.
I wanted to make sure they read the whole instructions before starting so, I waited 'till the middle of the document to specify that the C: drive should be 8GB and that it should have a D: and an E: drives. Many will have to start over.
Make sure someone other than YOU can understand and follow the instructions. Leave the prospect on a conference room with the PC, the software and the instructions. If they can't complete the tasks on the list on 2:00 hours, they go to the bottom of the pack.
I used this method with my last two hires and they haven't let me down. Simply, make sure they can "talk the talk" and "walk the walk".