What Advantage Does A Circuit Switched Networks Have Over A Packet Switched Network?

1038 WordsJan 28, 20155 Pages
R12. 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? Packet switching network is not suitable for real time services. In circuit switched network it can give end to end bandwidth during a call. In the packet switched network it cannot guarantee any end to end bandwidth. In circuit switched network Quality of service (Qos) is guaranteed while in packet switched network it is not guaranteed and packet switched network might have delay and time insensitive. Time division multiplexing (TDM) has an advantage over Frequency division multiplexing(FDM) as it gives bandwidth saving and there is low interference between multiplexed signals. R22. List five tasks that a layer can perform. Is it possible that one (or more) of these tasks could be performed by two (or more) layers? The layer can perform the five following tasks, Error control Flow control Segmentation Multiplexing Connection setup Yes, It is possible to one of these tasks can perform by two layers. For example, error control can be performed at two or more layers. R23. What are the five layers in the Internet protocol stack? What are the principal Responsibilities of each of these layers? Application layer: In this layer the user actions can be performed by the computer. It is the interface between user and computer and it supports for network applications. Example, transferring files Transport layer: It is used to

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