I applied through my school's internal career portal, and included a resume and cover letter. They contacted me to schedule an interview, and the first round was on campus. The first round was a 45 minute case interview, and that's literally all it was. There was no time to discuss anything except the case. The case wasn't too hard (or at least it was easier than the one on the website). I didn't do all that well on it - I made a few little mistakes along the way and probably took too long coming up with some of the answers. I didn't explain how I arrived at my conclusions too well either. I did, however, solve the case in the end. Overall the process was kind of dry and mechanical, and the interview and application process did not let me get a feel for the organization at all.