CCNP(R): Cisco Internetwork Troubleshooting Study Guide (642-831)

The mid-level Cisco Certified Network Professional (CCNP) certification validates advanced knowledge of Cisco-based networks. The support exam (643-831) is one of the four core exams that cover a wide range of topics, including determining an effective troubleshooting strategy and resolving problems at the various layers of the OSI network model. The CD includes testing engine with two bonus sample exams, electronic flashcards for PCs and Palm Handhelds, and the entire book in PDF.