SeekBytes wrote: » Dear members. I wanted to ask you for an advice. I am on the way to complete my CCNP RS and unfortunately I see that I am not knowledgeable of many areas like Multicasts, BGP (just scratched the surface), MPLS, QoS, and a lot of TCP/IP. I would like to become a network security engineer, but before I switch to the CCNA/CCNP track I thought to ask for advice and see what books to read for getting deeper into topics that I must know regardless the field I want to pursue. Would you mind to share a list of topics/books of must-know things that I can study? Unfortunately, CCIE RS seems to me a never-ending route and at actual stage rather than getting stuck for the next two years on it, I would prefer to complete other certifications and eventually landing a network security position. I look forward to hearing from you. Kind Regards.