Question

Difference between switching and circuit switching?

Answer 1

Answer:

Circuit switching is one of the switching technologies used to send messages from one point to another using a dedicated point-to-point link throughout the session. They are mainly used in PSTN (Public Switched Telephone Network) where the caller and receiver exchange information on a dedicated channel using an end-to-end link. This is a connection oriented channel which is established between the sender and the receiver using a dedicated signaling protocol. When either of them disconnects the call, the circuit breaks thereby terminating the session. In simple terms, the sender establishes a physical connection with the receiver along a dedicated circuit to send data transmissions and when the data transfer completes, the circuit is released. All data is transmitted along the same circuit throughout the session.

Explanation:

Packet switching makes the most out of the network bandwidth by breaking the message into small units called data packets which seek the most efficient routing path to reach its destination. Each data packet is assigned a header containing signaling information including the sender and receiver address, and then transmitted individually through the network. Each data packet may take a different route as addressed by its associated header. The data is processed at all intermediate nodes located at various points before reaching its destination where all the packets are reassembled and recompiled into the original message. It’s a more robust and efficient method to transmit data that can withstand some delays during the session. It’s mainly used for data and voice communication.

cuircut switching is the same as packet switching.

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