comprehensive probability and stats. also programming. def brush your stats + programming. the programming wasn't too hard tho. the interviewer was nice and provided help. had 4 rounds. last one onsite.
There are in total five interviewers. And they will let you introduce your CV first. And then ask you some related questions. Most of the questions are about derivatives. The whole process lasted about 10 minutes.
Only 20 mins asking about CV with a team of 4, but only one person speaks. Self introduction, and going through related experiences and your knowledge towards quant. Not a deep conversation.