I had questions in almost every field.. I Given a graph in which nodes represents hosts and edges represent connections, I was asked to create tables and queries related to that. Had questions in oops, some real time examples for queues, linked lists, stacks. Given fans, lights and switches, i was asked to relate it using oops concepts. They expected to explain every concept in oops like inheritance, abstraction, etc with them. In OS, i had questions like context switching, kernel mode actions, user mode actions In networks, i was questioned about DNS server, how would resolved the address of DNS server, etc. Had questions on merge sort, quick sort and was asked to explain its complexity I was given a puzzle too.