What does Ethernet refer to in the context of networks?

Ethernet refers to a widely adopted networking standard used for local area networks (LANs). It defines the physical and data link layer specifications for how devices on the same network communicate with each other. This includes aspects such as the cables, connectors, signaling, and frame formats that ensure data is transmitted reliably within a LAN environment.

The popularity of Ethernet is due in part to its scalability, flexibility, and cost-effectiveness. It has evolved over the years, expanding from 10 Mbps speeds to Gigabit Ethernet and beyond, supporting a range of bandwidth capabilities to meet the growing demands of modern networks.

In contrast, network security pertains to measures and policies designed to protect data and resources within a network, while protocols specific to wide area networks (WANs) differ from Ethernet, which is primarily for local connectivity. Lastly, while Ethernet does utilize network cables, it is not merely a brand of cables but rather a comprehensive standard for establishing connections within a LAN.