Organized by exam objectives, this is a focused, concise review guide that works hand-in-hand with any learning tool, including the Sybex CCNA Routing and Switching Study Guide. The two-part book will map to the ICND1 (100-105) and ICND2 (200-105) exams. Each chapter will map to the main objective domain from the exam:Part 1: ICND1 Exam Topics Operation of IP Data Networks LAN Switching Technologies IP Addressing (IPv4 / IPv6) IP Routing Technologies IP Services Network Device Security Troubleshooting Part 2: ICND2 Exam Topics LAN Switching Technologies IP Routing Technologies IP Services Troubleshooting WAN Technologies Readers will also have access to additional study materials, including two practice exams, electronic flashcard questions, and a searchable PDF of a Glossary of Terms.