content: Following is the review I left on another web site: So far I found 2 errors which MS confirmed: page 4, definition of UTP; and, page 17, max segment length 10base2; these are the errors I caught with my limited knowledge; my faith in the accuracy of the book has been undermined. I find this frustrating because I was looking forward to reading this book; I am now afraid to commit to memory anything I read within it.