The data-link layer, in reference to the OSI model, specifies – McqOptions

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1.	The data-link layer, in reference to the OSI model, specifies
A.	data link procedures that provide for the exchange of data via frames that can be sent and received
B.	the interface between the X.25 network and packet mode device
C.	the virtual circuit interface to packet-switched service
D.	All of the above
Answer» B. the interface between the X.25 network and packet mode device

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