RBC Summer Intern interview questions

The onsite interview consisted of three interviews with three different people. Each interviewer had a different background. One interviewer asked for you to create a stock pitch, which was difficult since I had never taken a finance class. The second interview was by far my worst. I was unprepared for the technical questions. They will ask about the company, so know everything about it. A brief look of wikipedia will not cut it. It seems that they wanted you to ask for help if you didn't know the questions.