Average Reviews:
(More customer reviews)This book was an extremely poor pick. The theory behind the OSI Reference Model is not given at all. The first 3 layers are covered to some basic extent. Overall, the book seems to be a series of long PowerPoint presentations put together in book format. By PowerPoint presentations, I am referring to each page being a list of "bullet-point" phrases that is only there to give a reader a guideline for the lecture she is hearing. Unfortunately, there is no accompanying lecture, so the presentation is totally useless. Altogether, this was a waste of money.
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The OSI (Open System Interconnection) reference model is the basis of modern data network design, but it underlines the public switched telephone network (PSTN) as well. For voice engineers learning how to send services over data networks, and for Internet engineers learning how to tap into the PSTN, the OSI model is an ideal point of reference. This book covers roles, functions, definitions and the fundamentals that are required of entry-level personnel.
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