Northrop Grumman interview questions

I was a college new hire so I was interviewed while I was about to graduate. The first interview was at my college as a job fair. It was only one manager. After that the second round was at a Marriot where I did a round robin of interviews with different managers. We also got a tour of the campus and saw presentations of the different areas we could work. 2 weeks later I got a call back saying I got the job and the offer. I was able to negotiate a bigger offer.