NVIDIA interview questions

The first phone interview was a basic screening. They spoke a bit about the kind of work they do and what an intern would be expected to do. The same evening I got mail asking me my schedule for second interview. The second interviewer had a bad accent and I could hardly understand anything. Had to keep reconfirming about what he actually asked. Many of my friends who interviewed also faced this problem. He asked questions about embedded systems and after 3 weeks got a reject.(So did all those who interviewed with him from my school that Fall)