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Title: Book is fine; practice exams and answer keys disappointing
Review: The book presents the material in a concise, effective manner. After a couple hours of buying the book, I was able to read the first two chapters with ease and do the first two exams. However, in grading the exams, I found the answer key to be wrong and answers contradicting text in the first two chapters. Also, so many questions use negative logic that the questions become unnecessarily confusing. I recommend using the Cisco Press books.
