[odelia]

I will sugust you to study hardware type some course, to get knowlege who computer works and if a hardware occors a problem then you will be able to replace the hardware like NIC card, RAM, etc
Because if you are going to do a network job no company will let you practice in a live envoirment.
Being a network expert I will sugust you to study MCSE first because this is the base of all networks and the things will be teached you quite deeply and all the LAN work as windows
Cisco Certification
LAN is the first step.
WAN is 2nd step like cisco’s CCNA, CCNP CCIE are the studies available.
In LAN you will learn who to take care of a network of 500 PC’s
but in WAN it will be teached that how to handle the trafic going towards internet and how rapidly it should work.
Without basic you cannot go up.
In LAN or MCSE will teach you some Remote desktop, how to logon others PC even you are sitting in London and you are using a PC which is in Newyork. and very Important
OSI refrence model
In which it is teached about the 7 layers of computer and on which layer what task is performed. In detailed In WAN Layers is every thing how the layers work and which layer performs which task.
If your basic concepts are not strong you will have difficulty to uderstand the WAN technology.