Rating: 
Summary: New Edition Just as Good
Review: Make sure you have the new edition of this book that covers Exams #640-801/811/821. As a starter book for CCNA it breaks you in with an very good overall picture and its a quick good final read also. Cisco Press or Sybex have "the meat" in much longer and involved texts which you will need unless you are doing a course. Dummies books are never to be underestimated. Recommended.
Rating:
Summary: Single best resource for CCNA Exam...
Review: Of all the books, CDRoms, and sims that I used to study for the CCNA, this was the single best resource by far.
HIGHLY RECOMMENDED
Rating:
Summary: Great book but not complete
Review: Passed CCNA exam first time (897/1000) with a lot of help from this book. The first few chapters on OSI model and subnetting were very useful. But the best part was the test exams on CD. From the self-assessment, I found out what areas I was weak on. More information is needed for switches, WANs and access lists.
Rating: 
Summary: Quick review, not single study source
Review: The book claims to be all you need to pass the CCNA exam. It is my experience that this is incorrect. The most it can be used for is an overview at the beginning of your studies. The book does not go into enough detail to cover half of what is on the test. The included CD is full of bugs and the emulation software it promises is only a demo and the real software must be purchased if you plan on using it to pass the test. I think there are better book on the market and don't suggest wasting the money.
Rating:
Summary: Quick review, not single study source
Review: The book claims to be all you need to pass the CCNA exam. It is my experience that this is incorrect. The most it can be used for is an overview at the beginning of your studies. The book does not go into enough detail to cover half of what is on the test. The included CD is full of bugs and the emulation software it promises is only a demo and the real software must be purchased if you plan on using it to pass the test. I think there are better book on the market and don't suggest wasting the money.
Rating: 
Summary: Great knowledge, bad package
Review: The book is awesomely written by the authors, however it falls short of doing a good job. It's extreamly poorly edited. The question sections at the end of the chapters contain errors in the answers and even some of the questions! Also lab 13-1 is almost entirly wrong. All of chapter 15 is nothing but very poorly typed, highlighted router commands. Whoever was editing stopped after chapter 11, completely! Good book for someone who's already knowledgable about networking but if your new to it and think you could get certified don't look to this book as the best source. My advice is wait for a second printing of this book, hopefully they'll fix those errors. Overall good in knowledge. Worth the money for sure but you'll be confused by all of the errors if you don't have some knowledge already.
Rating: 
Summary: Get ready for the CCNA 2.0 (640-507)
Review: The CCNA 2.0 exam (640-507) covers a wide range of Cisco routing and switching knowledge and just your experience with Cisco networking may not be enough. This book was created with four readers in mind: a working professional that needs to brush up on some things; a graduate of a Cisco Networking Academy looking for a study guide; someone looking for a handy Cisco reference; and someone curious about what they need to know to tackle the CCNA exam. For all of you: enjoy the book! And for those of you taking the exam, the best of luck!
Rating:
Summary: Does not contain enough detail.
Review: This book contains good foundational information about the CCNA exam. It is however not complete enough to use alone to prepare for 640-507. Read this book only if you are a networking novice.
Rating:
Summary: Not worth it
Review: This book is a waste of money. It doesn't go into detail enough with certain topics, particularly WAN protocols, and has information completely irrelevant to the 507 exam, eg Appletalk. It seems to me that this book was written for the 407 exam and quickly reedited for the 507. The only thing this book might be useful for is to review certain OSI model topics, and that hardly justifies the price. My recommendation is to buy Todd Lammle's guide and a router simulator.
Rating:
Summary: EXCELLENT *introductory* book
Review: This book is absolutely perfect for someone who is just beginning their studies for CCNA certification. It introduces and *explains* most of the major concepts on the exam in a very clear and easy to understand manner. As one reviewer has already noted, this text is much more effective in explaining and describing important points than even Sybex's popular book by Lammle. Also, it provides outstanding tips on what types of questions are destined to be on the exam and what pitfalls to look out for. It is very well written and makes an otherwise somewhat dry subject rather interesting :) After you read this book, you must study either the Sybex book (by Lammle) or Cisco Press' certification guide. <Cisco's book is better at explaining the "why" in addition to the "how"...Sybex is typically just the "how">
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