1.

As the resources are reserved between two communicating end systems in circuit switching, ___________ is achieved.(a) authentication(b) guaranteed constant rate(c) reliability(d) store and forward

Answer» The correct answer is (b) guaranteed constant rate

The best I can explain: Circuit switching is connection oriented and is always implemented in the physical layer. Once a path is set, all transmission occurs through the same path. It is used since the early times in telephonic systems.


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