What is data link of osi model, Computer Networking

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Q. What is data link of osi model?

- The data link layer offers access to the networking media and physical transmission across the media and this enables the data to locate its intended destination on a network.

- The data link layer offers reliable transit of data across a physical link by using the Media Access Control (MAC) addresses.

- The data link layer utilizes the MAC address to define a hardware or data link address in order for multiple stations to share the same medium and still uniquely identify each other.

- Concerned with network access, network topology, error notification, ordered delivery of frames and flow control.

- Instances Frame Relay, Ethernet and FDDI


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