F5 Engineer interview questions

Received email from HR, that they would like to interview for Software Engineer position. The interview started off with the basic Networking questions (TCP/IP vs UDP), router, switch, etc.. Then moving towards more into core computer science questions with questions on Operating Systems with Inter Process Communication and Message Passing, then questions on C/C++ with the keyword usage. Overall an average interview, but since it was Software Engineer position I did not expect too much of networking questions, but since this is a networking company, it is assumed that these questions would be asked.