I had 2 separate interviews – one with a recent alum and the other with somebody who graduated probably 15+ years ago. I had to send in my full application (essays, test scores, etc.) to the interviewer ahead of time. Both interviews lasted about 45 mins.
My first interviewer wanted the interview to be open and was more of a conversation. She had me walk through my resume and then we just chatted about what influenced me to make my career choices. She didn’t have any behavioral questions ,but really pressed why I wanted to go to INSEAD.
My second interviewer was tougher. I walked through my resume and he stopped me a few times to test my industry knowledge (I’m in financial services). When I said I wanted to go into consulting, he really pressed me on why. He pushed back several times telling me the negatives of consulting and I had to keep on justifying my choice. He had me go into detail about how an international experience would benefit me, especially if I want to go back to the United States post-MBA.
I ended up getting waitlisted.