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 Cisco Certified Network Associate (CCNA) certification is the first-tier certification in Cisco"s Network Support and Communications and Services tracks and by far its most popular. Designed to assist candidates for the CCNA exam (640-607), this package contains a comprehensive, interactive, personalized training course; over 1000 adaptive practice test questions with answers; a powerful lab simulator for hands-on switch and router training; and maps to official Cisco exam objectives. Two CD-ROMs contain the Virtual Trainer, the Virtual Test Centre and the CCNA Virtual Lab.