Suppose there are two links between a source and a destination. The first link has transmission rate 50 Mbps and the second link has transmission rate 10 Mbps. If the only traffic in the network comes from the source, what is the throughput for a large file transfer?

10 Mbps

Explanation:

In this situation, the throughput for a large file transfer would be 10 Mbps. This is because in situations where there are more than one entries going into a single destination the throughput will be the lowest transmission rate as this rate would be the one that is bottlenecking the entire transfer. That is because the other links would be able to handle the speed of the lowest transmission rate but the lowest rate cannot handle the speeds of the other links, thus limiting the throughput.

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