I just took the AORN PeriOp 101 final exam yesterday. There were 115 questions. Question were just like the ones in the 27 modules - multiple choice, matching and select all that apply questions. My best advice is to not rush through the 27 modules. Take your time and know the material. Take notes as you go along. The summaries for each module are very helpful and contained answers to questions verbatim. The test is hard. You are allowed 4 hours and given 3 opportunities to pass. Trust me you want to pass the first time out. Good luck!