1st Phone interview - questions : developer skills, preferite language, time in a day spent programming, IP, pthread, firewall, inode content, signals, python in general, C malloc, C++ delete, MAC, DNS header, quick sort
2nd Phone interview - questions: PID, PPID, precesses, thread, zombie, init, bash command top. Python: newbie questions, range() vs xrange()
3rd Phone interview - write a Python to read a file and extract significant data from it