Exercise 2: (2+2+2=6p) If each packet carries 1000 bits of data, the distance between the sender and receiver is 5000km, link speed is 1Mbps, and the propagation speed is m/s. Assume no data or control frame is lost or damaged. Ignore transmission time for ACK. a) How long does it take to send 1 million bits of data if using Stop-and-Wait ARQ Protocol? b) Repeat for Go-back-N ARQ Protocol if using 3-bit sequence number. c) Repeat for Selective-Reject ARQ Protocol if using 3-bit sequence number

Fig: 1