Consider the internal data structures of a TCP entity: (1) Identify the internal data buffers used within a TCP entity as they would appear if the netstat command was used. In your answer explain what each buffer is used for. (ii) Identify the socket primitives (without arguments) used to move data between the buffers in TCP layer to the Application layer. (iii) Explain how the TCP entities exchange information about the state of their data buffers and explain what should happen when a data buffer is full.

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