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The number of layers in ISO OSI reference model is __________(a) 4(b) 5(c) 6(d) 7This question was posed to me in my homework.This interesting question is from Reference Models topic in division Computer Networks Introduction of Computer Network

Answer»

Correct option is (d) 7

Explanation: In OSI REFERENCE model, there are 7 layers namely APPLICATION, Presentation, Session, Transport, Network, Data Link and Physical layer. Each layer uses a protocol to perform its designated FUNCTION, for example, the data link layer uses error detection PROTOCOLS for error control FUNCTIONS.



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