Roche Internship interview questions

Applied online, the HR-office called back after a few weeks after which the interview proceeded in three steps: 1.Phone interview 2. 8h interview/workshop at the Roche office 3. Final round interview day. 4h at the Roche office

I was invited to an interview after around 2 months from the date I applied for the job. I had an interview with the line manager and a department employee, they were very nice and very professional. A week later, I was invited to roche for the 2nd round interview, the interviewees were 2 head of departments. A couple if days later, I received a phone call where I was informed that I have received the job.