A public switching telephone network (PSTN) uses which switching technique?

Question

Accepted Answer

(c) Circuit — The public switched telephone network is the global interconnection of circuit switched telephone networks. It includes telephone lines, fiber optical cables, microwave transmission links, cellular networks, communications satellites and undersea telephone cables, all inter connected at switching centers, thus allowing any telephone in the world to communicate with any other telephone.

Answer

(A) Packet

Answer

(B) Message

Answer

(D) None of these

A public switching telephone network (PSTN) uses which switching technique?

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