Which of the following cable types is NOT commonly used in networking?

High-voltage cables are primarily designed for the transmission of electrical power rather than data, and they are not used in networking contexts. This distinguishes them from fiber optic cables, twisted pair cables, and coaxial cables, all of which are integral to networking infrastructure.

Fiber optic cables utilize light to transmit data over long distances at high speeds, making them ideal for high-bandwidth applications. Twisted pair cables, such as those used in Ethernet, are widely used in local area networks due to their ability to carry data effectively over short to moderate distances. Coaxial cables, often used for cable television and internet connections, can also play a role in networking.

Thus, while fiber optic, twisted pair, and coaxial cables each have specific applications within networking, high-voltage cables are not designed for this purpose. This understanding is key in recognizing how different types of cables align with networking technologies and their functions.