Cisco

Six rounds of interview process: Four technical rounds: * One round on programming * One round on operating systems * One round on networking * One round of puzzles One round for manager discussion One round with HR for finance

My interview was quite smooth. I was mostly asked basic network-related questions, which I was comfortable with. Other than that, I was asked about some basic data structures/algorithms and when they would be helpful to increase router performance.

First, there will be a phone screen where they'll ask you questions on basic data structures to test your grasp on linked lists, trees, etc. If you clear that, you'll be invited for a face-to-face interview, which will last for an entire day. This w