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Title: Extremely helpful for exam prep
Review: This book was a critical part of my prep for the NetworkingEssentials exam. (I passed first try.) I found it much better to readjust the "essential parts" of the essentials than labor through a longer book. It was easily readable and contained just what I needed to know. The practice exams were helpful. I found it not necessary, however, to memorize the "cram sheet" that is included. Otherwise I highly recommend it and the Flash Cards that are also published by the same group.
