I had asked a friend for a referral. I got a call from the manager a day later. He told me about what positions they were looking for and what my interests were. He asked me a few networking questions like what a VLAN is etc just to gauge me. I got a call for an interview the next day. Questions were about what the MAC addresses will look like in a packet sent via a gateway router. What is a Proxy ARP. Then there were questions on scripting. Since I did not know Perl at that time, they asked me questions from Shell and Python (which I knew). The emphasis on whether I can code and not on which language I knew.