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A local telephone network is an example of a _______ network.

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A local telephone network is an example of a _______ network.

(a) Packet switched

(b) Circuit switched

(c) Bit switched

(d) Line switched

The question was posed to me in an internship interview.

The doubt is from Packet Switching & Circuit Switching in chapter Security & Physical Layer of Computer Network

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Right answer is (b) Circuit switched

Best explanation: Circuit switching is connection oriented switching technique, whereas in the case of packet switching, it is connectionless. Circuit switching is implemented in the Physical layer, whereas packet switching is implemented in the Network layer. Internet too is based on the concept of circuit switching.

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