I got selected for an interview when they came to campus. There were 2 stages. First day was behavioral. I passed it, so I was invited back for a second day of technical interview. It was a long second day. I was put on a team of 3. We took the B-Apt test the first half of the day. It wasn't really hard, but it is tricky. There are questions with blank lines that you'll be filling out. They give you about 10 lines, but it's possible for the program to be longer. Read the instructions carefully! I believe this is where I messed up. The second half of the day was doing a technical case study. I had to work with my 2 partners trying to come up with a solution for a problem. It's a difficult problem, no doubt, but the interviewers were interested in how we were going about figuring out the problem. Don't bother trying to come with something precise. They have a document to help guide you through the process, so don't worry too much.