Honestly thats hard to answer..it totally depends on how technical your interviewer really is, and if its your first or third technical interview.
If your interviewer is Scott or Duncan then well, I'd probably fail the interview.
If your interviewer hasn't written the exams and has been learning by the seat of his pants, then you should find it easy.
I assume that if you are going for a technical enterview you have a year or 2 experience with the product, and have at least a VCP. Those 2 qualifications pretty much mean you can answer most of the virtualization questions you'd find in the first technical enterview.