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Which of the following use PVCs at layer 2?

A.) X.25

B.) HDLC

C.) Frame relay

D.) ISDN



Which of the following use PVCs at layer 2? A.) X.25 B.) HDLC C.) Frame relay D.) ISDN..

Answer / guest

Answer: C

Of the above choices, only Frame relay uses Permanent
Virtual Circuits

(PVCs) at layer 2. PVC is the key word in this question.

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