My interviewer was very conversational and friendly. Here is what she asked me:
1. Why MBA? Why Columbia?
2. What are your short- and long-term goals?
3. What is your plan B if you don’t get into business school/your desired role?
4. How do you approach diversity as a leader?
5. Is there anything else not on your resume/application that you want the AdCom to know?
Then I asked 3-4 questions and we chatted. Interview was 50 minutes total.