Which standard does Ethernet follow for LAN data transmission?

Ethernet follows the IEEE 802.3 standard for LAN data transmission, which specifically defines the physical and data link layer's protocols for wired networks. This standard outlines how data packets should be formatted, addressed, and transmitted over Ethernet networks, ensuring interoperability and reliable communication among various devices.

In contrast, the other standards mentioned serve different purposes. IEEE 802.11 pertains to wireless LAN communication (Wi-Fi), focusing on wireless networking protocols. IEEE 802.1 addresses networking architecture and management, including bridging and network management protocols. IEEE 802.5 pertains to token ring networks, a different type of LAN architecture that uses a token-passing method for managing access to the network. Thus, understanding the function and application of each IEEE standard clarifies why IEEE 802.3 is the correct choice for Ethernet data transmission.