You need to know current networking knowledge, for example what is the current speed for backbone connectivity, which would be 40GBP for a larger company, end to end. Also you need to know how to correctly implement VLAN 's, firewalls, Access control lists, and more. There is a lot of content knowledge that you must know to do the job correctly.
I feel that I would be I would still need to get some more certifications, and experience before I 'm ready for most of these jobs. Since when you start out you typically don 't get the highest responsibility, and highest paying jobs out there, just how it works. I need to work at gaining experience in the field, that is really the best way to get where I would like to go, and the options are basically unlimited. Although I would enjoy becoming a Information Security Analyst since it a very interesting job. There is a lot of work to do before, I become any of these