Which accounts payable software are you most comfortable using?

It is very important to only speak to the software you are familiar with. Talking about software that you know about but not sure how to use could get you in a bind. Tell the interviewer how quick you learned how to use that software and that you are confident you could learn any type of accounting software. This question could give you the opportunity to ask the interviewer what type of software they use and ask a little bit about it and how it works.

"I'm comfortable working with MIcrosoft Dynamics. I'm ready to learn whatever product this clinic uses."