DOCSIS provides a specification for which type of service?

DOCSIS, which stands for Data Over Cable Service Interface Specification, specifically pertains to the communications protocol used for transmitting data over cable television networks. This technology allows for high-speed data transfer and is primarily utilized by cable internet service providers to deliver broadband internet service to consumers.

The reason cable TV networks are the correct answer is that DOCSIS takes advantage of the existing coaxial cable infrastructure that is already in place for cable television. This enables providers to offer internet services alongside traditional cable TV broadcasting without needing to install entirely new wiring systems. The DOCSIS standard allows for varying speeds and capabilities, making it highly adaptable for different service levels.

In contrast, other options such as fiber optic connectivity, DSL connections, and satellite internet operate on entirely different technologies and infrastructures. Fiber optics use light to transmit data over glass fibers, DSL relies on telephone lines for data transmission, and satellite internet connects users via geostationary satellites. Each of these options serves a different market need and does not directly relate to the DOCSIS standard, which is specifically designed for cable-based internet services.