精东传媒app

Switches and routers are the basic hardware components of local area networks (LANs) and wide area networks (WANs). Furthermore, LANs are inter-connected by WANs which use different technologies from the LANs. An understanding of the basic concepts and operations for switches, routers and WAN technologies is a pre-requisite for all network professionals. This course focuses on basic concepts of switches and virtual LANs; wireless LANs; wireless routers; and various WAN technologies including Frame Relay and enterprise network security. This course covers the second part of the contents for Cisco Certified Network Associate (CCNA) (Teach by Technology strand): Switched Networks and Connecting Networks modules offered by the Cisco Networking Academy Program.

This course introduces virtual LANs as a tool to provide segmentation, flexibility and security of LANs. Link redundancy and aggregation are introduced to enhance the robustness of LANs. Network Address Translation is discussed as a method to conserve Internet Protocol Version 4 (ipv4) network address space. It also focuses on WAN technologies which span large geographic areas. After completion of this course, the students will be able to describe and select appropriate WAN technologies; handle switches; routers and wireless routers with confidence.