Which standard governs Ethernet technology for wired local area networks?

The governing standard for Ethernet technology in wired local area networks is IEEE 802.3. This standard defines the physical and data link layer specifications for Ethernet networks, including the framing of packets, physical media specifications, and the media access control method used in these networks.

IEEE 802.3 was developed to provide a framework for networking using Ethernet, enabling devices to communicate effectively over a local area network (LAN). It encompasses various Ethernet technologies, including standard speeds such as 10 Mbps, 100 Mbps, 1 Gbps, and beyond, as well as different media such as twisted pair cables and fiber optics.

In contrast, other standards mentioned are intended for different types of networks or technologies. For example, IEEE 802.11 pertains to wireless networking (Wi-Fi), and IEEE 802.2 refers to logical link control in data link layer specifications but does not specifically govern Ethernet. Similarly, IEEE 802.4 was an older standard designed for token bus networks, which is now largely obsolete. This highlights the specific focus of IEEE 802.3 on wired Ethernet technology, solidifying it as the correct answer.