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What is physical, and wireless media used in networking?

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Physical media:

  • Twisted pair cable – consists of two independently insulated wires twisted around each other
  • Coaxial cable – consists of an insulated center wire grounded by a shield of braided wire Fiber optic cable – contains hundreds of clear fiberglass or plastic fibers
  • ISDN line – a special digital telephone line that transmits and receives information at very high speeds

Wireless media:

  • Microwave system – transmits data via high-frequency radio signals through the atmosphere
  • Satellite system – receive signals from the earth, amplify them, and then transmit back these signals to the appropriate locations on the earth.
  • Cellular technology – uses antennae resembling telephone towers to pick up radio signals within a specific area.

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