Ethernet is also known as:

Correct option is B

Ethernet refers to a family of networking technologies used for Local Area Networks (LANs). It is formally standardized under the IEEE 802.3 specification. This standard defines the physical and data link layer's operation for wired Ethernet, including frame formats, media access control (MAC), and data transmission methods.

Important Key Points:

1. IEEE 802.3 is the standard that governs Ethernet — the most widely used LAN technology.
2. It supports both half-duplex and full-duplex communication modes.
3. Ethernet typically uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) for media access control in older standards.

Knowledge Booster:

• 803.2: This is an invalid IEEE standard number — not associated with any networking protocol.
• 802.5: Refers to the Token Ring network protocol, not Ethernet.
• 802.11b: This is a Wi-Fi standard for wireless LANs, not related to wired Ethernet.