Question

Consider two hosts A and B, connected by a direct link of capacity 4 Mbps. Suppose the propagation delay between the two hosts could be ignored. Host A wants

to send a 10 MB file to Host B. Before sending the file, A divides the file into 1000-byte chunks and adds an additional 60-byte packet header to each packet.

a. How long does it take for Host B to receive the complete file?

b. Based on question a, what is the ’goodput’ from A to B? (Hint: Good-

put can be calculated as the number of payload bits arriving per second. Goodput is

the application level throughput, i.e. the number of useful information bits, delivered

by the network to a certain destination,per unit of time.)

Answer 1

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