Cisco Systems continues to dominate the internetworking hardware market with a more than 80 per cent share of the routers used on the Internet. The mid-level Cisco Certified Network Professional (CCNP) certification validates advanced knowledge of Cisco-based networks. The switching exam (640-604) is one of the four core exams that cover a wide range of topics, including installing, configuring and operating LAN, WAN and dial-up access services for organizations with mid-to-large sized networks. A guide for those taking the routing exam (640-604), this text features real-world scenarios, exam essentials and maps to official Cisco exam essentials.
