Explain why the traditional Internet protocols for transmitting data are not sufficient to provide the quality of service guarantees required for a multimedia system.Discuss what changes are required to provide theQoS guarantees.
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Answer:Internet protocols such as IP and TCP do not typically reserve resources during connection setup time at the intermediate routers. Consequently,during congestion,when the buffers in routers fill up, some of the packets might be delayed or lost,thereby violating any
quality of service requirements.Congestion losses could be avoided if the Internet uses ciruit switching and reservation of buffer resources to ensure that packets are not lost.