Arm Design Engineer interview questions

Applied online and I was contacted by a recruiter for availability. A phone screen (after 2 days from the email), and then an onsite (After a week) and heard about the status after a month from the onsite interview. Interview is tough and have to know fundamentals good enough to crack it. All white boarding for all the 7 interviews on the same day except during lunch interview. Interviewers were well prepared and very friendly. Overall, after the interview I left with a good experience.