I am about ready to hire another tech and want to be sure they are knowledgable like there resume' will say they are

Wanted to put a little test together with about 20 or so questions to see if they know there stuff.

I dont want to use A+ BS questions either. I want to use stuff that pertains to working on computers now. I always ask in the interview if they know what msconfig is. That is one good indicator for me. Any others would be helpful. Thanks

Jamie