Ethernet operates at which layer of the OSI model?

Correct option is B

Ethernet operates at the Data Link Layer of the OSI model. The Data Link Layer is responsible for node-to-node data transfer, framing, and error detection, which are key functions in Ethernet.
Important Key Points:
1. Data Link Layer (Layer 2) handles framing, error detection, and media access control. Ethernet is an example of a protocol used at this layer.
2. Ethernet also partially interacts with the Physical Layer (Layer 1), as it uses cables and signaling to transmit data, but its primary functionality lies in the Data Link Layer.
Knowledge Booster:
· Physical Layer: Deals with the electrical and physical connection to the network. This includes cables, connectors, and signaling.
· Network Layer: Responsible for routing packets across networks (e.g., IP).
· Transport Layer: Handles end-to-end communication and reliability (e.g., TCP/UDP).
· Application Layer: Provides network services to end-user applications (e.g., HTTP, FTP).