Q:

_____ cables are composed of a glass or plastic inner core surrounded by cladding, all encased in an outside jacket

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_____ cables are composed of a glass or plastic inner core surrounded by cladding, all encased in an outside jacket.


  1. Coaxial
  2. Fiber-optic
  3. Twisted-pair
  4. none of the above

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 (b).Fiber-optic

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