Grouping of the OSI layer
Group OSI layers as per their function?
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The seven layers of OSI model can be divided into three subgroups. Physical, data link and network layers are considered as the network support layers; they generally deal with the physical aspects of moving the data from one device to the other. Session, presentation and the application layers are considered as the user support layers; they enable interoperability among the unrelated software systems. The transport layer guarantees end-to-end reliable data transmission.
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