Software Engineer

Aptitude + OS + Networks + C Programming (Pointers, arrays, Bitwise operations) + COA

1. What is Paging?
2. About Page Table entries and Page table size and what happens when CPU requests for a page, how page table is useful?
3. Then he asked about spinlocks and process synchronization and some discussion on how semaphores work and deadlock and PCB attributes and all related stuff.
4. Write a code on where and how volatile keyword in C is useful in both read and write Environment?
5. Identify buffer overflow if I multiply two integers.
6. little-endian and big-endian systems and write a code to identify whether it is big-endian or little-endian.

Introduce yourself. Questions about other project and internship experience and what was your role and simple questions based on that. He saw my last interview remarks and told since you are good with data structures write a code to reverse a linked list full functional code with all test cases covered and with the main function. He will just pass integer values as input and output must be in reversed order.

There is a room with a door (closed) and three light bulbs. Outside the room, there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can’t change them. Identify each switch with its bulb. All bulbs are in working condition.

Introduce yourself.
Do you have any questions for me?