Which method is most commonly used to connect computers over a wired network?

Ethernet is the most widely used standard for connecting computers over a wired network. It operates primarily through twisted pair or fiber optic cabling, allowing devices within a local area network (LAN) to communicate with each other effectively. Ethernet technology has evolved over the years, resulting in high-speed connections that are reliable and relatively easy to set up.

Its ubiquity stems from its ability to support a variety of network speeds and configurations, making it highly adaptable for different environments, from home networks to large enterprise systems. Moreover, Ethernet standards are standardized, which means devices from different manufacturers can work together seamlessly on the same network.

In contrast, while Wi-Fi allows for wireless connectivity, it is not a wired method. Token Ring, although historically significant, has largely been phased out in favor of Ethernet due to its complexity and slower speeds. Infrared technology is typically used for short-range communication, such as remote controls, rather than for connecting computers in a wired network context. Thus, Ethernet stands out as the most prevalent choice for wired connections in computer networking.