Hello all this is my first post here .
Well here is ths story I have been in the IT feild for around 12 Years almost all of them as a Hardware tech on the network side basic TCP/IP stuff setting up new systems on the network with correct IP's , subnet's and gateways e.t.c. and adding PC's to the domain .
I have now started to get some certs behind my name I just finished a Advanced Computer maintenence and Networking 4 Month course at my Local University and Passed with a "A" (also the higest marks in the class)

so my Instructor said that I should do CCNA I signed up yesterday and the classes start at the begining of next month,

what I want to know is what should I study or read up on before starting ?
Thank you