Questions won't be as difficult if I was not given misleading information and prepared properly. I was sent an email regarding the first round interview explicitly saying I will be interviewed about my "past experience" and general behavioral questions. As I was in the process of graduation so I thought it would be a fairly easy first round screening. It was not. The interviewer was late and started to ask me questions about "my opinion about certain industries" right away, then a lot of follow up questions about certain companies in that industry (competitor analysis, five force analysis, value prop analysis etc). I knew that my interview is over. So be OVER prepared for an interview is never wrong I guess.