Rating: 
Summary: Excellent book for the exam
Review: I studied almost exclusively from this book for the exam, and passed with flying colors. The practice questions are almost word for word the ones encountered on the Exam. I looked at a couple other books, and they were way off of the material needed for the exam.It would be 5 stars, but the OSI model isn't explained as clearly as it could have been. I actually had to read a chapter from another book to get a solid understanding of the model. Having said that, if you know the material covered in this book, and the material in the practice exams, you should be able to pass the exam.
Rating: 
Summary: Try Another Book
Review: I can only give this book a lukewarm recommendation since it appears to be very outdated even through it was recently published. Most examples and discussion were on Windows 95/98 and NT 4.0. Hardly any mention of Windows 2000 and almost none for Windows XP except the in the lab. Also almost no coverage of Linux/Unix. Finally, the book is not very well organized and covers the same material in multiple chapters. The virtual lab supplied with the CD in the book is probably the best part and provides some value for beginners but is too simple for most students taking Network+.
Rating:
Summary: He's not Todd Lammle
Review: I was previously CCNA certified when I took this test, thank goodness. I was hooked on the Sybex series because of Todd Lammle, what a great author he is. This book was not clear, even inacurate. Level two datagrams are called frames, not packets. Packets exist at layer 3 of the OSI model. This error kept popping up, if I didn't know the real answer I would have missed the question on the test that related to this. The book did not discuss token ring well enough for me, as I have never used it. I would suggest finding another book or going through a Cisco Networking Acadamy, you can get both your CCNA and your Network + certification that way. I felt like I wasted money on this book even though I passed the test the first time. Look elsewere And remember that layer 3 datagrams are called packets, layer 2 datagrams are frames...hence frame relay which is a layer 2 technology and packet filtering capabilities of routers which operate at layer 3.
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