Apple Developer interview questions

I talked to a recruiter at a BYU college career fair and left him my resume. When the official recruiter came to town he scheduled an interview through our recruiting office. He had been all over the nation interviewing candidates and was only looking for one position. he asked a lot of personal questions and only a few technical questions, like about the unix terminal. "If you wanted to change permissions to read/write all recursively how would you do it?"

I got a call from the HR seeing my resume online. I applied for compiler developer position and they called me for a position in the LLVM team. I had 2 levels of phone interview and finally didn't get through though. I had first level of interview with a Director who asked questions about my Masters research work and then I had another level with the manager and a developer who asked me general questions about my resume. The interview lasted for 30-40 min.