Asking Questions: Wharton/Lauder joint degree programs

[chateau]

Is there any alumni from Wharton here who can help me with this question?
I am interested in the Wharton/Lauder joint degree program and would like to know more about how to prepare the Oral Proficiency Interview. Generally, are the interview questions more related to personal questions or formal issues? What do they tend to be? I knew that there seemed to be someone who was admitted into the joint degree program before. I would really appreciate if you guys could help me out!!

A million thanks in advance!