What are the advantages and disadvantages of packet switching over circuit switching?

What are the advantages and disadvantages of packet switching over circuit switching?
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The comparison of packet switching and circuit switching showing advantages and disadvantages of packet switching over circuit switching is given below:

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Which of the following approaches to switching share networks resource? a. Circuit switching b. Packet switching c. Both A and B d. None of these

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The required resources for communication between end systems are reserved for the duration of the session between end systems in ________ method. a) Packet switching b) Circuit switching c) Line switching d) Frequency switching

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The fundamental approaches to build a point - to - point network is: a) Circuit Switching b) Packet Switching c) Both of Above d) None of These

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What is the difference between Circuit Switching and Packet Switching?

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Draw a centralized SPC organization and explain how it works under load sharing operation.

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