What does IEEE 802.11 X mean?

802.11x is generic term to refer to the IEEE 802.11 standard for defining communication over a wireless LAN (WLAN) . 802.11, commonly known as Wi-Fi, specifies an over-the-air interface between a wireless client and a base station or between two wireless clients.

IEEE 802.3 is a set of standards and protocols that define Ethernet-based networks . Ethernet technologies are primarily used in LANs, though they can also be used in MANs and even WANs.

802.3, or IEEE 802.3, is a working group of standard specifications for Ethernet , a method of packet-based physical communication in a local area network maintained by the Institute of Electrical and Electronics Engineers (IEEE).