Northrop Grumman interview questions

Had a phone interview and the hiring manager reviewed my resume line by line and asked me some questions about the company. Some behavioral questions were asked nothing too difficult.

I found the position online and applied and the same day I received a call from a recruiter. She asked me basic questions about my resume then she told me that they wanted to bring me in for an interview. She gave me the date with was a hiring event so their were many people interviewing as well. It was a big hall with about 25 tables and each table had a hiring manager. I was assigned to the table and went and talked with the manager for half an hour. The man was really nice, asked a lot of behavioral questions. I left and the recruiter emailed me 3 days letter saying I didnt get the job.