(Solved): Suppose there are two links between source and destination, with one router connecting the two lin ...

Suppose there are two links between source and destination, with one router connecting the two links. Each link is $$5,000\mathrm{km}$$ long with a transmission rate of $$10\mathrm{Mbps}$$. Assume the propagation speed is $$2\times 10^8$$ meters/sec. There is a 30 Mbit MP3 file sent as one message. Suppose there is no congestion, so the message is transmitted onto the second link as soon as the router receives the entire message. The end-to-end delay is a. $$6.05$$ seconds b. $$6.1$$ seconds c. $$3.05$$ seconds d. none of the above