Boston Consulting Group Summer Analyst interview questions

I was contacted via phone call to attend the BCG Connection Event. After I attended the event, I was invited to apply as a summer analyst intern there. I applied from their online application website and received a notification about 2 weeks later that I have passed the CV selection process. There are two rounds of interview. The first round is in focus group discussion format with the BCG Project Leaders. The second round is a one on one interview wit the BCG Principals.