Naval Information Warfare Systems Command New Professional Program, Electrical Engineer interview questions

My interview was 1:1 at my college campus. I got it at a career fair and he scheduled me last minute for an on-campus interview. There was another employee there for monitoring purposes or something, but he didn't speak and I was given the impression that he wasn't an interviewer. I was asked all typical HR questions, some having to do with my most recent job (retail, completely unrelated field to engineering) but wanted to make sure I answered the behavioral questions tactfully. No technical questions asked, which I've often heard. I interviewed on-site for the same position last year, and was railed with technical questions (didn't get the job). If they decide they want me this time, I believe I will be called for another on-site interview where I take some sort of engineering exam. This is a gov't job that would require security clearance, so there's a strict background check...