Prepare for the new CCNP 642-821 BCRAN Exam with the official exam preparation guideLearn the remote access design and management topics for the new Cisco CCNP 642-821 BCRAN exam with the only official preparation bookPractice with more than 200 test questions, including simulation-based questions on the enclosed CD-ROMCCNP BCRAN Exam Certification GuideComprehensive coverage of all exam topics ensures readers will arrive at a complete understanding of what they need to master to succeed on the exam. This book follows a logical organization of the BCRAN exam objectives, and is written in a modular, small-chapter format that breaks elements into easy-to-absorb parts. It also contains the other valuable learning elements of an Exam Certification Guide from Cisco Press that ensure concept comprehension and retention. These include pre- and post-chapter quizzes, foundational review sections, scenario-based exercises and a CD-ROM testing engine with more than 200 questions, including simulation-based questions like on the actual exam.In addition to technologies like ISDN, DDR (Dial-on-Demand Routing), Frame Relay, NAT (Network Address Translation), AAA (Authentication, Authorization, Accounting), and other related technologies covered in the first edition, this edition also contains an introduction to QoS (Quality of Service), VPN (Virtual Private Networks), VPDN (Virtual Private Dial-up Networks), and DSL (Digital Subscriber Line) technologies.