Brocade Software Engineer interview questions

I was contacted by a recruiter from Brocade to set up a telephonic interview. The interview was relatively easy and consisted of questions on sockets, VLANs, TCP/IP, ARP. Then they asked about my projects, some operating systems concepts like difference between thread and process. Finally he concluded the interview saying he thinks I am suitable for a software engineer in test and not a software developer. Key point being not a single coding question asked yet he arrives at that conclusion.