Question: Calculate the latency ( total delay from first bit sent to last bit received ) for both packet switching and circuit switching for the following:

Calculate the latency (total delay from first bit sent to last bit received) for both packet switching and circuit switching for the following:
Consider a 3-hop network where Sender and receiver are connected via a intermediate switch. The link 1 speed is 1 Mbps and link 2 speed is 2 Mbps . The packet size is 1000 bits, and each link introduces a propagation delay of 1 ms . Assume that the switch begins forwarding immediately after it has received the last bit of the packet and the queues are empty.
Find answers for both packet switching and circuit switching. How are the different?
Calculate the latency ( total delay from first

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