Which of the following is an example of IEEE 802.3 ?

Answer: LAN (Local Area Network)

Why: IEEE 802.3 specifies the Ethernet standards that define the physical layer and the MAC sublayer used in local area networks. It defines frame formats, addressing, and how devices share the medium.

• Key points: defines Ethernet frame format and MAC behavior (historically CSMA/CD).

• Covers physical media commonly used in LANs (twisted pair, fiber, etc.).

• Does not define standards specific to metropolitan, wide-area, or personal area networks.

• Related IEEE families for comparison: IEEE 802.11 for wireless LANs, IEEE 802.15 for PANs, IEEE 802.16 for metropolitan wireless (WiMAX).