I'm sorry but this book is not a comprehensive review for the CCNA exam. It offers some material that is not included in other cisco books but that's all. This seems to be the pattern for all cisco books. Info is spread out among many sources and not summarized in any one place. Combine that with poor indexes and incomplete glossaries and you get the picture. I suspect to get a complete high-points review for the CCNA exam you will have to seek a non-cisco publications to do it.
