Northrop Grumman Human Resources/New Grad interview questions

I applied and interviewed through the Career Center on my university campus. The interview lasted about 30 minutes, with mostly behavioral questions. It was a pretty standard interview and I did not receive the offer. It was a negative experience simply because the two recruiters told me that they would get back to me, but I wouldn't hear from them for weeks after. Also, I never got a rejection phone call or email. I just assumed I didn't get the offer because I didn't hear from them for a month. Overall, I'm pretty disappointed in their university recruiting process. From a supposedly reputable company, I thought they would at least have the consideration to tell me I didn't get the position especially since I was selected to interview for them.