I can't give away what was on my test. However, I can tell you that you can take it at home (just like the Corrective Exercise Specialist exam) when I took them last year. Both tests are timed so you do have to study. I doubt this format has changed. You can always call NASM and find out.
I honestly wish they are given at a proctored testing center. Some of the credibility is lost otherwise, IMO.