DATA LINK LAYER WIRED NETWORKS
MULTIPLE ACCESS PROTOCOLS MAC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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datalink layer
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physical layer
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transport layer
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network layer
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Detailed explanation-1: -The data link layer (Layer 2) of the OSI model actually consists of two sublayers: the Media Access Control (MAC) sublayer and the Logical Link Control (LLC) sublayer. The MAC sublayer controls device interaction. The LLC sublayer deals with addressing and multiplexing.
Detailed explanation-2: -The foremost data link layer protocol is the Ethernet protocol. Like the check being placed into the envelope, the Ethernet protocol encapsulates data passed to it from higher layers. It also does the reverse: it decapsulates data that is presented to it from the physical layer.
Detailed explanation-3: -The upper of the two data link sublayers is the logical link control sublayer. The main function of the logical link control layer is to act as an interface between the lower MAC sublayer and the network layer within the OSI model during the data transfer.