Louise points to an article about questions candidates should ask at the end of the interview and follows up with her own, Questions to Ask at the End of the Interview:
A year from now, how will you evaluate if I have been successful in this position?”
Louise goes on to explain why she likes candidates to ask questions at the end of the interview.
Update Nov 28: I actually linked to Louise's article. Sorry for the oversight yesterday, and thank you, Walter, for asking me.