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Which of the following statements is true for a circuit S...

Which of the following statements is true for a circuit Switching communication system?

A.

It is not ideal for a real-time communication

B.

Messages must be divided into packets before they are sent

C.

It does not require any dedicated channel to be established between two parties

D.

A dedicated channel must be established between two parties through the period of Communication

Correct answer is D

No explanation has been provided for this answer.