M

Mr. Dubey • 52.30K Points
Coach 

Q. 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
Correct : Option (B)

Explanation: 
 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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