HDLC (High-level Data Link Control) is

1.	HDLC (High-level Data Link Control) is
A.	a method of determining which device has access to the transmission medium at any time
B.	a method access control technique for multiple-access transmission media
C.	a very common bit-oriented data link protocol issued by ISO.
D.	network access standard for connecting stations to a circuit-switched network
E.	None of the above
Answer» D. network access standard for connecting stations to a circuit-switched network

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HDLC (High-level Data Link Control) is

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