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A wide-area network (WAN) is a data
communications network that spans a large geographic area. WANs
have several important characteristics that distinguish them from
LANs. The first lesson in this module will provide an overview of WAN
technologies and protocols. It will also explain how WANs and LANs
are different, and ways in which they are similar.
It is important to have an
understanding of the physical layer components of a router. This
understanding builds a foundation for other knowledge and skills
needed to configure routers and manage routed networks. This
module provides a close examination of the internal and external
physical components of the router. The module also describes
techniques for physically connecting the various router
interfaces.
Students completing this module
should be able to:
- Identify organizations
responsible for WAN standards
- Explain the difference between a
WAN and LAN and the type of addresses each uses
- Describe the role of a router in
a WAN
- Identify internal components of
the router and describe their functions
- Describe the physical
characteristics of the router
- Identify common ports on a
router
- Properly connect Ethernet,
serial WAN, and console ports
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