IBM Interview Experience | Software Engineer | Full Time | On Campus 2024

IBM visited our campus for a recruitment drive, providing an exciting opportunity for students to showcase their skills and secure positions in their esteemed organization.

First Round (Online Assessment):

Total 15 MCQs and 2 Coding Question

There were only 2 MCQ from Aptitude one is of vein diagram and one is finding missing number in a circle. Maximum MCQs are from Operating System(Easy-Medium Concept based), 3-4 questions were from Linux command and concepts.

There were 2 coding questions:
First is to convert ipv4 address to ipv6 address. One can solve similar question from https://www.geeksforgeeks.org/convert-ip-address-to-integer-and-vice-versa/

Second coding was to find the length of last word in a string having words separated by one or multiple spaces and there are trailing non-characters in start and end of the string, similar to https://www.geeksforgeeks.org/length-of-last-word-in-a-string/

Technical Round (virtual interview):

This interview lasted hardly 30 minutes. First they asked about introduction then First question was different mechanisms of IPC(Inter Process Communication),Semaphores, Different scheduling algorithm in multicore processor, Process vs Thread, storage classes in C, Interrupts, How interrupt works.

They asked Three questions from DSA. First they asked to open any online compiler.

1. Create a linked list node in any of the language. (They asked one of my friend to create in C.)
2. How to detect a cycle in linked list. https://www.geeksforgeeks.org/detect-loop-in-a-linked-list/
3. (Bit-manipulation) Write code to swap MSB and LSB of an integer. https://www.geeksforgeeks.org/how-to-swap-two-bits-in-a-given-integer/
4. Write code to detect Little endian and Big endian. https://www.geeksforgeeks.org/little-and-big-endian-mystery/, https://cs-fundamentals.com/tech-interview/c/c-program-to-check-little-and-big-endian-architecture

HR Round:

They asked about projects, Location Preferences and managerial questions based on given situations.

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