Ethernet-based protocols are communication standards that enable devices on a local area network (LAN) to exchange data. They use Ethernet technology, which defines how data packets are formatted, transmitted, and received over a network. These protocols ensure reliable and efficient data transfer, making them essential for connecting computers, printers, and other devices. Common examples of Ethernet-based protocols include Internet Protocol (IP) and Transmission Control Protocol (TCP). These protocols work together to manage data transmission, ensuring that information is sent accurately and in the correct order. This combination allows for seamless communication across various devices in a networked environment.