I'm not sure what you mean by "interview evaluation questions," so please add some information in another question or reach out to LJN directly for additional help. All questions by the hiring manager and recruiter must be consistent with the Uniform Guidelines on Employee Selection Procedures. The manager or recruiter should provide feedback from the interview regarding the (job-related and consistent with business necessity) information from the interview. The applicant is then dispositioned accordingly. It is a good practice to retain information on a decision not to hire as I believe your question contemplates.
You can use this OFCCP audit checklist to ensure you're doing what is required to maintain OFCCP's regulations including VEVRAA, Section 503, and EO 11246. Or request a demo to streamline your compliance and recruiting efforts.