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Title: Too many mistakes and fundamental flaws
Review: As an owner of many cram books and others I am sorely disappointed at the lack of proof reading done for this book and worried about some of the mistakes I've seen. When the author doesn't even know the definition of a hertz (it's cycles/sec, a hertz is not a cycle!) should I trust the other info? On one page I counted 8 typos in seven lines. Test questions are filled with errors which could confuse someone who doesn't know better. Bad book...needs review by a qualified person, preferably someone with an engineering background who hasn't just memorized a bunch of IOS commands.
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