Cisco Software Engineer interview questions

Interview was three part, with one engineer for the first and third sessions, and an interview with a product manager and another engineer for the second. Interviewer #1 frequently left the interview and was busy on his own work throughout. Interview #2 was culture fit, interview #3 was pleasant with a friendly engineer.

I had a on-campus interview. Fairly easy. Mostly networking related questions. I had taken a network security course and the interview asked questions related to that. Describe IP spoofing attack and how to prevent/detect it.