First round is the telephonic interview round - Basic networking related question, mostly on Layer 2 of OSI model. Second round is the On-site interview round with the hiring manager and few expertise. - Question about details working of protocols and in-depth knowledge about the hand-on experience with networking devices such as switches and servers. Third round is another on-site round with the team members. - Questions to understand what kind of team player you are and your attitude towards the team members in terms of sharing knowledge and past experience. The more friendly you are with the team mates, more comfortable your third round of interview will be.