Qualcomm Embedded Systems Engineer interview questions

Applied for the embedded systems engineer online in QCT division. Interview lasted about an hour, first 20 mins was explaining my background, then he asked some basic questions about operating systems concept, locks, semaphores. Some embedded hardware questions related to DSPs, he was mainly interested in the course projects that I had done related to OS and dsp programming. Last 10 mins was for me to ask questions about the position what was involved in the work. I was interviewed by the manager of the group