A big file will be sent from A host to B host through 3 links with the speed of 500 Kbps, 2Mbps, and 1Mbps.
a) assume that there is just one user on the system , what is the end-to-end throughput?
b) if file is 4gb , how long the transfer will last?
c) answer the a and b options again thinking there is 100Kbps link instead of 2Mbps link.
The throughput will be the speed of the slowest link as that forms a bottleneck - you can do the calculation for yourself.