Good book for tough test
The Exam Cram series has always done a good job of distilling complicated information into an easy-to-read format.  This book is a good example of this.  TCP/IP is not an easy subject.  However, this books makes it  understandable if not enjoyable.  For a more detailed review, feel free to  check out MCSETutor.com.
Fake reviews! None of them actually have mentioned their score on the TEAS.. I bought & returned because not the best too to study. Too many sections missing or not explained well enough.