CompTIA Security+ Exam Prep

Answer: B - The core of coaxial cable is copper. Coaxial cable has a copper core that is surrounded by a shielding layer and grounding wire. This is all encased within a protective outer jacket. Coaxial cables use copper wires as their data transmission media. Compared to twisted-pair cable, coaxial cable is more resistant to electromagnetic interference, provides a higher bandwidth, and supports the uses of longer cable lengths. However, twisted-pair cable is cheaper and easier to work with and the move to switched environments that provide hierarchical wiring schemes has overcome the cable-length issues.