Cisco Software Developer Engineer interview questions

2-3 technical Interviews, 1 HR round. Interviewers were very friendly and comforting and dont let you feel nervous. First they gave presentations about working at Cisco and how can it be a career boost. Then we had our first interview round where some general questions about algorithm design were asked. Second interview was more about networking and its fundamentals, and some puzzles, which i was notable to solve. Usually people were having only two interviews, but i was the only one who had three interviews, where they asked me questons about graphs. Fourth was HR round, where he asked me general questions about working there at cisco.

I was interviewed by the hiring manager. The interview was carried on online and lasted about 30 minutes. The manager was an experienced software engineer that checked mostly the kind of person I was since he was already working with a former university colleague of mine.