Hi Guys
After much toiling about which "specialist" field to go into after paying my dues doing user support for about 5 years i finally decided to pursue my CCNA all the way to CCIE.
can anyone tell me how much emphasis is put on the theory part of the CCNA exams i.e. OSI Model, it's layers, the cisco 3 layers, ethernet etc. Or is the exam fully concerned with config of routers, switches etc?
how much theory do i need to cover? also, i have Todd Lammle's book on CCNA and the NETSIM for my router labs. id this enough? Where do i get some really good prep tests from? unfortunately i am a little low in cash so freebies are most welcome

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from "the soon to be liberated support guy"
....no more users!!!!!

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