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Authors:
James F. Kurose, Keith W. Ross
Chapter:
Computer Networks And The Internet
Exercise:
Review
Question:12 | ISBN:9780132856201 | Edition: 6

### Question

What advantage does a circuit-switched network have over a packet-switched network? What advantages does TDM have over FDM in a circuit-switched network?

Advantages of a circuit-switched network have over a packet-switched network:

• Circuit switched network is used for voice/video calls, but packet-switched network is not possible do this.
• Circuit switched network's bandwidth is limited, but packet-switched network's bandwidth is not limited. So, packets transfer is time taken in packet-switched network.

Advantages of TDM have over FDM in a circuit-switched network:

• TDM means Time Division Multiplexing. FDM means Frequency Division Multiplexing.
• In TDM, same frequencey operate all connections, but In FDM, different frequencies opearate all connections.

### CroetCalc

the second answer on the first question is not completly clear to me. You state: "the packet switched network's bandwith is not linited, so, packets transfer is time taken"...

First of all, isn't it so that packet transfor allways takes time? Second, what is the relation with the unlimited bandwith?

### CroetCalc

The answer on the second question does only set out some differnces but it doesn't explain the advantage of one above the other. Can some oine explain?

Post the discussion to improve the above solution.