Arm Summer Intern interview questions

I got an email regarding a phone interview to which I responded with a proposition to attend a personal one since I feel its always a better impression when to talk in person. I reached on time and was waiting at the counter for the manager. He came up and introduced himself to me. We went to a meeting room where his boss was present as well and asked me to answer questions and explain stuff on the board. He mainly asked questions from my resume which were totally conceptual. It was mainly optimization for logic design, computer architecture and timing analysis. I did get positive responses of good and OK. Though there were times when they had to walk me through to the answer. But it was my first interview hence I am glad to have had the experience.