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Which of the following statements is/are true with regard to circuit switching and packet switching? (Mark all the appropriate choices)

  1. Switches in a packet-switched network process connection establishment and tear-down messages, whereas switches in a circuit-switched network do not.
  2. Under some circumstances, a circuit-switched network may prevent some senders from starting new conversations.
  3. Unlike in packet switching, switches in circuit-switched networks do not need any information about the network topology to function correctly.
  4. Once a connection is correctly established, a switch in a circuit-switched network can forward data correctly without requiring data frames to include a destination address.
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Switches in a circuit-switched network process connection establishment and tear-down messages, whereas switches in a packet-switched network do not. So, option A is false.

Option C is also false.
Answer:

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