Ebook: Cisco Networking Academy Program: CCNA 1 and 2 companion guide

Cisco Networking Academy Program CCNA 1 and 2 Companion Guide, Revised Third Edition, is the Cisco approved textbook to use alongside version 3.1 of the Cisco Networking Academy Program CCNA 1 and CCNA 2 web-based courses. The topics covered provide you with the necessary knowledge to begin your preparation for the CCNA certification exam (640-801, or 640-821 and 640-811) and to enter the field of network administration.