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Primarily in the Physical (first) layer to be the transciever for the Line, but many cards

these days also have acceleration and cache MAC-IP addresses and and speed up

ARP requests and translation to IP Addresses which are at the Link (second) Level.

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12y ago
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14y ago

NICs are one of the few devices that belong to more than one layer of the OSI model. They belong to the physical layer (layer 1) because of the physical connections, and layer 2 (Data Link) because they contain a MAC address and create frames before transmission.

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14y ago

A NIC belongs to both the physical layer and the data link layer.

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Q: Which two layers of the OSI model do NICs belong?
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