I applied online in February, received a call from an HR personnel in about 2 weeks after applying. Some basic questions about my interests and academics and why and how did take interest in the company. A phone interview was set up the following week. Questions regarding networking basics, protocols, important concepts and some programming. It was a tough interview and main focus was on the networking aspect. Questions about TCP, UDP, BGP, IS-IS, OSPF. 1 question about gathering routing information through a code. the final interview was scheduled 1 week later. Questions were regarding network virtualization (SDN), my academic projects and interest in virtualization and previous work experience. All in all, great experience.