Which internet service uses coaxial cables to deliver broadband?

• A. Fiber optic
• B. Cable
• C. Digital subscriber line (DSL)
• D. Wireless

Answer: (B)

Coaxial cables are used to deliver broadband in cable internet systems. In these networks, data rides over the same coax that carries cable TV, typically as part of a hybrid fiber-coax (HFC) setup where fiber brings high-capacity signals to a local node and coax carries the signal from that node into homes. The data format commonly used over this medium is DOCSIS (Data Over Cable Service Interface Specification), which governs how modems communicate with the cable provider’s network. This approach differs from fiber optic connections, which run glass fibers all the way to the home; from DSL, which uses copper telephone lines; and from wireless, which transmits signals via radio waves.