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Frame relay has _______(a) only physical layer(b) only data link layer(c) only network layer(d) both physical and data link layerI have been asked this question in an online quiz.Question is from ATM & Frame Relay topic in chapter Frame Relay of Computer Network

Answer»

The CORRECT answer is (d) both physical and data link LAYER

The best I can EXPLAIN: The physical layer is guided by the protocols recognized by the ANSI. The data link layer supports the simplified CORE functions specified by the OSI model.



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