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Title: Nice book
Review: This book has good coverage of ISDN, Frame Relay, and PPP. I find the material here is well presented, especially the step by step instructions on how to configure ISDN PRIs. The test questions are sometimes very difficult, too difficult for the BCRAN. They do make you think about the topic so that you can really understand what is going on. For those who have left negative comments, I can only guess they don't "get it" and would have difficulties with any of the books describing this topics. I also liked Cisco's BCRAN book by Catherine Paquet and Todd Lammale's book. Unlike the other BCRAN books this book describes other topics that are relevant to the topic, but not the exam, like configuring IPX over PPP. Good information, keep it up!
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