Nokia interview questions

Applied Online. Process started with the phone conversation with the hiring manager which took more than 45 minutes. That call was mainly on resume. Secondly, an assignment that supposed to be done in 1 hour was sent. It was a design question of a object oriented design with C++. After this two phases, I was invited to on-site. There were five interview rounds. First was with hiring manager. General knowledge on mobile devices was checked. Second interviewer checked the initially given assignment, after asked to enhance the initial design. Third interview was with lead architect. He asked for a application design for mobile phones. Fourth round was with two interviewers in which I totally failed. The fourth interviewer had some issues with my nationality.