A communications medium that uses single copper wire surrounded by thick insulation is:
a. twisted-pair cable.
b. a satellite.
c. optical fiber.
d. coaxial cable.
Answer: C or D
A communications medium that uses single copper wire surrounded by thick insulation is:
a. twisted-pair cable.
b. a satellite.
c. optical fiber.
d. coaxial cable.
Answer: C or D