Apple Engineer interview questions

I got to the group interview where I was able to meet all the team members in the department that I applied to. 25 mins per person, total around 5 hours. My interview went well according to the recruiter, she quickly set me up for the final interviews with other departments. Few days before the interview, the recruiter notified me that the interview got canceled without giving any explanation. I spend a lot time to find out the reason from insider at Apple, turn out that the other department did not think I am quality for the position; I also have a similar background as the other department which could imperil them...according to the insider. Even though I want to try again and prove myself, after a second thought I think there is no reason to bargain for a job in a company where one department can easily Interference the rest of the department's business. Such political matters will definitely effect my loyalty if I actually work inside that company.

I applied the position from Apple.com and got the response from their HR to make an appointment of two 30 mins phone interviews. The interviews are all about technologies related to the position. No questions about resume. Questions are not too difficult (only basic concepts or ideas, ex sensitivity of a system).