Which type of network media is capable of transferring data up to 100 Gbps?

• A. Twisted-pair cable
• B. Coaxial cable
• C. Fiber-optic cable
• D. Wireless

Answer: (C)

Fiber-optic cable is capable of transferring data up to 100 Gbps because light-based signaling offers an extremely wide usable bandwidth and very low signal loss, which lets you push data rates far higher than copper wires or wireless. In practice, this speed is achieved by using dense wavelength-division multiplexing, where many separate light wavelengths travel down the same fiber, each carrying its own data stream. This combination—high intrinsic bandwidth, low attenuation over distance, and the ability to multiplex multiple channels—makes 100 Gbps and beyond feasible with fiber, especially on single-mode links for longer distances using standards like 100G Ethernet. Twisted-pair copper and coaxial cables have much more limited bandwidth and higher losses, while wireless faces spectrum, interference, and distance constraints that prevent routinely achieving 100 Gbps in typical deployments.