Network Devices This tutorial gives a brief overview of devices like repeaters, hub, switch and router and their basic functionality. For hands on practice on router and switch commands and CCNA labs, try network simulator with designer for CCNA at routersimulator.certexams.com Related videos on youtube by certexams include 1. OSI Datalink Layer – A Tutorial www.youtube.com 2. OSI IPv4 Subnetting – A video www.youtube.com 3. OSI IP version4 Addressing www.youtube.com 4. VLAN Networking – Collision and Broadcast Domains www.youtube.com


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