Cisco Software Engineer interview questions

I have attended Off campus that held on 7 march 2015 on main office Bangalore. The process was very simple well defined it takes 4 rounds of interview. 1. Round was written test(appti+Data Strucure+ Algorithm+ Networking+Reasoning+c+C++) it takes 50 question in 60 min. 2. Round was technical interview in this interviewer wants to check whether you are comfortable with coding or not.I have given each and every question's answer clearly. And got cleared that round too. Some question were asked a. How to traverse tree code preorder traversal recursively and iterative both. b. Memory layout in c. c. How to compare two string effectively.(o(n)) d. How to sort an array which is the best techniques that you will select and why. e. How internet works. 3. Round based on network only. I have not cleared that round just because of some bloody question like IP header, TCP Header, Socket, IPV4, IPV6, and some devices related question. Some question were asked a.Write a program to convert decimal number in to binary. b. How to convert a tree into binary search tree. c. How the internet devices works. d. How wire shark works. e. Some question based on const pointer. f. Explain how NAT works. g. What is IP addressing explain each one in deep. I have answered coding question efficiently but a little bit weak in network. So did not grab this opportunity. 4. Simple HR round like weakness, strength, why cisco just like formality.

Started with phone interview from hiring manager, and 4 webex technical interviews. All interviews were technical, involving data structures, algorithms, object oriented programming and web services, and some problem solving questions