Question

Where is the Ethernet 802.3 standard defined?

a. Physical Layer
b. Data Link Layer
c. Network Layer
d. Transport Layer

Answer 1

The Ethernet 802.3 standard is defined at the Data Link Layer, which handles node-to-node data transfer, error detection, and network traffic regulation.

Step-by-step explanation:

The Ethernet 802.3 standard is defined at the Data Link Layer of the OSI model. While the Physical Layer specifies the physical characteristics of the network such as cabling, connectors, and signaling, the Data Link Layer is responsible for node-to-node data transfer, error detection and correction, and flow control. The 802.3 standard is a part of the IEEE 802 protocol suite and covers aspects like frame format, Media Access Control (MAC), and addressing.