IBM Software Engineer interview questions

First written test consist of 4 program subjective , c language objective, then face to face interview, round was technical all questions were relatd to linux, c, data structure, mostly from linked list. ie find a loop in list delete a node from list etc etc

i applied thorogh my college. It took two days to complete the process but it was easy to get inside if you are good at Operating system concepts. I were having questions in process scheduling and process life cycle, semaphore, mutual exclusion, memory allocation and etc., and then some simple puzzles to solve.