Roland Berger Intern - Consulting interview questions

Applied online through their website. Got contacted by HR recruiter almost immediately on the same day. He scheduled the first HR interview within a week, then proceeded to do the online assessments (Korn Ferry) after a week. Took slightly more than 2 weeks to get back with results. Next was the first round consulting interview with project manager, scheduled within 2 weeks, market sizing but no numerical calculations. Interviewer was nice and gave me a second chance even though I was not well prepared. Passed and was informed within a day. Second round was after a week with principal consultant, also market sizing but more in depth and numerical. Interviewer was more strict and I did not pass this round. Waited for a few days before contacting HR recruiter via email, where he informed me nicely that I was not selected for the last round (with partner). All in all, was a good experience because HR was responsive and did not leave candidates hanging after rejection.