Tech Mahindra Senior IOS Developer interview questions

Overall the interview process was quite good. 2 round of interview was there. I learn a lot of new things from the interviewer, they guide me how to improve your skills.

Process was smooth and HR was very nice and co-operative. But There was problem in tech round 1. The interviewer was iOS dev having 5+ years of exp. He himself was not much aware about OOP concept and Complexity. I was giving correct answer but he said you are wrong and correct answer is this (which was totally wrong) and i was like what is this..LOL In the end he said, you need to brush up your skills(Irony)