Northrop Grumman Engineering Software II interview questions

I got a phone call to do an Skype interview with three different managers at once. My interview started by basic "Tell me about yourself?" question. Right away they started asking me Technical questions. Through out the 30 mins interview 80% of the questions were about Technical Questions. One of the interviewer literally just left within 5 mins of the Skype call and later came with Chicken Drumsticks and literally started eating in front of the camera. Other two managers were nice but they asked me a lot of technical questions that were not even required/was stated in the job posting.