Which cable is described as having a single copper conductor at its center with a plastic insulation layer and a braided shield?

Which cable is described as having a single copper conductor at its center with a plastic insulation layer and a braided shield?

• A. Shielded Twisted Pair (STP) cable
• B. Coaxial cable
• C. Fiber optic cable
• D. Unshielded Twisted Pair (UTP) cable

Answer: (B)

Coaxial cable is built with a single copper wire at the center, an insulating plastic layer around it, a braided metal shield, and an outer jacket. This arrangement provides a stable signal path and strong shielding from interference, which is why it’s described as a single central conductor with a dielectric layer and a braided shield. The other options don’t fit: shielded twisted pair uses multiple conductors with shielding around them, not one central conductor; unshielded twisted pair has no shielding; fiber optic uses glass and carries light, not a copper conductor.

Coaxial cable is built with a single copper wire at the center, an insulating plastic layer around it, a braided metal shield, and an outer jacket. This arrangement provides a stable signal path and strong shielding from interference, which is why it’s described as a single central conductor with a dielectric layer and a braided shield. The other options don’t fit: shielded twisted pair uses multiple conductors with shielding around them, not one central conductor; unshielded twisted pair has no shielding; fiber optic uses glass and carries light, not a copper conductor.