Question: 2. Why are the protocol layers required in network communication? Draw the 7-layer ISO protocol stack and discuss the functionalities of each layer. Indicate the

 2. Why are the protocol layers required in network communication? Draw

2. Why are the protocol layers required in network communication? Draw the 7-layer ISO protocol stack and discuss the functionalities of each layer. Indicate the missing layers in TCP protocol suite and discuss how they are taken care of. (7x1/2 + 11/2 = 5 Points)

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