Which characteristic describes a Layer 2 switch?
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Correct answer: Operates at the data link layer for forwarding decisions..
Why this is the answer
A Layer 2 switch operates at the data link layer (Layer 2) of the OSI model. It uses MAC addresses to make forwarding decisions, learning them from incoming frames and storing them in its MAC address table. This allows the switch to forward frames only to the port where the destination device is connected, reducing unnecessary traffic. Incorrect options: "Responsible for ordering packets in a specific sequence" is a function typically handled by higher-layer protocols (e.g., TCP at Layer 4) or is inherent in the reliable delivery mechanisms, not a primary function of a Layer 2 switch. "Uses routers to create collision domains" is incorrect. Switches themselves create smaller collision domains per port, while routers create broadcast domains. "Avoids storing MAC addresses for faster forwarding" is false. Storing MAC addresses is fundamental to how a Layer 2 switch operates efficiently by enabling directed forwarding rather than broadcasting.
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