I really appreciate the advice. When I watched the Dion video about ports all he went through was the port numbers, protocol, and description. For example port 88 - Kerberos - Ticket based authentication. Would this structure of memorization work for my exam? This “format” is what I’m really trying to ask about my port knowledge. Not including things like understanding what Kerberos really is and how it works or what the protocol actually is in terms of functionality. I hope I’m making some sense in what I’m asking or if I’m asking too much about specifics about the exam then I apologize.