What is a function of the data link layer?
- provides the formatting of data
- provides end-to-end delivery of data between hosts
- provides delivery of data between two applications
- provides for the exchange of frames over a common local media
Explanation: The data link layer (Layer 2) is specifically responsible for the exchange of frames between network interface cards (NICs) over a common local media. It performs this by accepting Layer 3 packets (such as IPv4 or IPv6) and encapsulating them into Layer 2 frames, which include the necessary control information for the local segment. While higher layers focus on end-to-end delivery between remote hosts or formatting data for applications, the data link layer manages how data is placed on and received from the physical medium, ensuring communication between nodes on the same network.
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What is a function of the data link layer?
- provides the formatting of data
- provides for the exchange of data over a common local media
- provides end-to-end delivery of data between hosts
- provides delivery of data between two applications
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