First there was a Aptitude test, which had basic networking questions about hardware and software. Logical reasoning questions and excel questions. Second round was a Technical interview round by Interviewer. In that they ask about the company products and what does company do and all, Network security questions like firewall, Cyber attacks, DNS and many more. If you pass the above two rounds then they will call you for another technical interview round which will be taken by a higher authority person like manager . In that they ask deep about the networking protocols like TCP/IP, UDP and all. OSI layers and their functions, SSD, HDD, Port numbers and also about your projects. If you pass all the rounds then you get selected for their company..