Which transmission medium consists of a central conductor surrounded by an insulating layer and a metallic shield?

Options

  • A. Optical fiber
  • B. Unshielded twisted pair
  • C. Coaxial cable
  • D. Shielded twisted pair
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

C. Coaxial cable

Detailed Explanation

Correct Answer: Coaxial Cable

  • A coaxial cable contains a central conductor.
  • It has a dielectric insulating layer, metallic shield and outer jacket.
  • The metallic shield helps reduce electromagnetic interference.
  • It is used in cable television and broadband networks.