Kurose and Ross Edition 6 Exercise 1 Question R22 (Page No 70)

Question

List five tasks that a layer can perform. Is it possible that one (or more) of these tasks could be performed by two (or more) layers?

Answer 1

Five generic tasks are error control, flow control, segmentation and reassembly, multiplexing, and connection setup. Yes, these tasks can be duplicated at different layers. For example, error control is often provided at more than one layer.