Incedo Software Development Engineer (SDE) I interview questions

In the first round, my interviewer was so cool, he asked me basic concepts from oops mostly. Even if I failed to answer 1 or 2 he didn't care, he just said me the answer and explained so that I can understand(most interviews won't say). I was able to do well and as the interviewer is friendly I was able to discuss non technical stuff after the interview just like talking to a friend. Then I got shortlisted for second round, even this is a managerial round it is completely technical for me. I felt this round was bit hard maybe she was not cool like him, she asked some questions that test how well do you know the subject in depth, and when I say depth it is really deep which no one could probably remember. So I failed to answer few questions (2-4) but however I was able to get selected.

who is your role model and why?.