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1. How long does it take to send a file of 640,000 bits from host A to host B over a circuit-switched network?
1. How long does it take to send a file of 640,000 bits from host A to host B over a circuit-switched network?Assumptions:All links are 1.536 MbpsEach link uses TDM with 24 slots/sec500 msec to establish end-to-end circuit