VVDN Technologies .NET WPF Developer interview questions

I was contacted by HR through a recruiting agency. There were 2 technical rounds + 1 HR round (+1 client round if opening is onsite), In the first round of interview, I was asked basic questions on .NET and WPF. Interviewer was least interested in taking interview and was more interested in proving oneself superior. After giving answers to all the questions, he asked couple of programming questions.