Quest Global Software Engineer interview questions

Process : QuEST Bangalore scheduled a walkin on October 6 2018. I reached the venue on time. After registration I was told to sit in the adjacent room, and as no chairs were available I was standing for 1 hr. After this my resume was taken by the HR and I along with many other people were called to a working place. Waited there for 30 mins and I was finally called. Interview : This was the worst Interview i ever attended. The interviewer was very unprofessional. Even without introducing himself he asked to explain current project I was working on. After I explained about the current project I was asked a basic question on C++ and I answered it. Then he asked another question and I could no answer it properly. The interviewer was laughing and sarcastically asked me what should he ask me next. I felt he was completely unprofessional and do know know how to respect others. I said I was not comfortable continuing the interview and that was not the way to ask questions. He requested to continue the interview and I politely denied.

First round was aptitude and it was quite easy.Second was technical and puzzles mixed.They asked to write basic programs and also asked to explain some basic concepts of c++.Asked aptitude questions aslo.Last one was managerial.In the managerial round,they asked only about puzzles.