CCENT/CCNA ICND1 640-822 Official Cert Guide (3rd Edition)
Wendell Odom, CCIE No. 1624, has been in the networking industry since 1981. He has worked as a network engineer, consultant, systems engineer, instructor, and course developer; he currently works writing and creating certification tools. He is author of all the previous editions of the Cisco PressCCNA Official Certification Guideseries, as well as theCCNP ROUTE 642-902 Official Certification Guide, theCCIE Routing and Switching Official Certification Guide,Computer Networking First Step, theCCNA Video Mentor,IP Networking(a college textbook), and he is the primary networking consultant for theCCNA 640-802 Network Simulatorfrom Pearson. He maintains study tools, links to his blogs, and other resources at www.certskills.com.