A few questions concerning Linux, interprocess communication, and mutex use cases in the linux system programming. How to do code refactoring, to to do performance tuning how long have you been programming in c and c plus plus?

First round is written round the level of questions are high. They gives you sufficient time for solve thiese questions Secound round is program writing thid is too lenthy and tough like write a program of Linked list and its operations, write a program for a Stack using quee, write a program for make incription. Third is minimum two F2F interview.