CCNP Support Exam Certification Guide is a comprehensive self-study tool for the CCNP Support exam, which tests your ability to diagnose, isolate, and correct network failures and performance problems. Written by a certified Cisco Systems(r) instructor who teaches the Cisco(r) Internetwork Troubleshooting (CIT) course on a regular basis, this book covers all the major topics on the CCNP Support exam, allowing you to master the exam concepts. In this comprehensive overview of network troubleshooting, you'll learn how to identify troubleshooting targets, use troubleshooting tools, and manage IP, IPX, AppleTalk, Catalyst(r), Frame Relay, and ISDN BRI connections..