I submitted an online application and was called in for 1st and 2nd round interviews. Since I was an Advanced Degree Candidate I had to show more business or leadership experience, as I was from a field unrelated to business. The interviewers were genuinely interested in my personality and non-academic experience. The first 15 min was fit and behavioral questions, which I thought were important for connecting to your interviewer and impressing them if possible. The following 25 minutes were case-solving, usually much simpler than what you find in case study books. The remaining 5 minutes are questions you may have for your interviewer, so try to come up with questions that show you are interested and passionate.