First there was a coding round consisted of two coding question and 38 aptitude and basic computer science fundamental questions. After shortlisting, It has total 4 rounds of interview and it took the whole day.
Interview questions [1]
Question 1
They really focus on topics from core computer science subjects like interrupt service routines, deadlocks(asked to code it too), semaphores, scheduling in operating system then from computer networks like role of all the layers, TCP, UDP. Was asked if comfortable in UNIX/LINUX. Few coding questions were asked to like swapping the bit at two given positions. How does recursion happen, like flow of a recursive program, tree traversals.
The Cisco Systems interview process typically includes resume screening, an online assessment, technical interviews on networking, coding, and problem-solving, followed by a managerial or HR round. It evaluates technical knowledge, communication skills, and cultural fit.
I applied through university. I interviewed at Cisco (Tonk) in Feb 2026
Interview
It was okay, I had 2 rounds in the first round, they asked simple math and physics questions, and add an operation in calculator code, in the second one they asked networking and OS questions.
Interview questions [1]
Question 1
State any physics law that you know of and give an example
Interview was quite different compared to other cisco interviews. The interviewer was extremely rude. He didn't even start with introduction. He asked some OS and Linux concepts, which I answered correctly but he was not convinced for some reason.