What they ask (and ask for) appears to be very inconsistent between district offices.
For both my wife and my interview, the questions all related to information on the N-400. They asked a small number of "civics" questions (all from the 96 questions in the Guide), and asked each of use to read and write a very simple sentence in English. That was about it.
They didn't ask us about tax transcripts, speeding ticket resolution, even anything about travel (but, we were both *very* far under the limits (slightly less than 100 days total over 5 years)).
It's best to ask this sort of question on the appropriate thread for your district office, you'll get answers better tuned to your specific case.