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CCNA: Network Media Types

Chapter Description

Familiarize yourself with some friendly network cables and take a closer look at common types of network media, including twisted-pair cable, coaxial cable, fiber-optic cable, and wireless.


In this chapter, you learned the following key points:

  • Coaxial cable consists of a hollow outer cylindrical conductor that surrounds a single inner wire conductor.

  • UTP cable is a four-pair wire medium used in a variety of networks.

  • STP cable combines the techniques of shielding, cancellation, and wire twisting.

  • Fiber-optic cable is a networking medium capable of conducting modulated light transmission.

  • Wireless signals are electromagnetic waves that can travel through the vacuum of outer space and through a medium such as air.

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