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Cisco is offering the CCNA (Cisco Certified Network Associate Program) professional qualification and therefore they have published the appropriate companions for their on-line curriculum. CCNA 3 and 4: Companion Guide is a useful companion that has helped me a lot during semesters 3 and 4, as has CCNA 1 and 2: Companion Guide also done, since I am a CCNA student at the moment. The book is well written, in an easy-to-understand way and they try to make things as easy and understandable as they can be. But, there are huge differences between the book and the on-line curriculum and that shows the poor effort from Cisco in devising the whole new version 3 of the CCNA. The book introduces during semester 3 concepts that will be taugth in semester 4 and this goes on!!! I am not at all dissapointed that I bought the book, but I am a bit dissapointed in Cisco! They could do a better job. After all, they want to call themselves leaders, right??? Buy the book and try no to pay too much attention to some stuff that you will immediately recognise as "alien"...
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