US Postal Service PSE Mail Processing Clerk interview questions

I am in the Pre-Hire List yet, so I don't have the interview questions. I took the 473 exam and passed, received a background and drug test consent letter. Then I scheduled the drug test. I think next step will be the interview.

I applied on 9/1/15. Took the assessment on 9/3 (scored 81). Took my drug test on 9/14. Then waited and waited. I finally received an email on 10/9 saying my interview was scheduled for 12p on 10/15 with no option of rescheduling. There were about 30 people on the day of the interview. After signing in, we waited in the conference room for our name to be called for our individual interview. I received the job offer via email on 10/19 and accepted the position.