Consider distributing a file of F = X Gbits to N = 20 peers. The server...

Consider distributing a file of F = X Gbits to N = 20 peers. The server has an upload rate of us = X*3 Mbps, and each peer has a download rate of di = X/2 Mbps and an upload rate of X/10.

The numeric value X is the position of the first letter of your last name in the alphabet. For example if your last name starts with A then X = 1 and F = 1 Gbits.

Find the distribution time for
1. Client-server distribution
2. Peer-to-peer distribution

Solutions

Expert Solution

1.) Client-Server Distribution

For calculating the minimum distribution time for client-server distribution, we use the following formula:

Let X=1. Therefore Here,

F=1 Gbits= 1*1024=1024Mbits
u_s=3Mbps
d_i=2Mbps
N=20

2. Peer-to-peer distribution :

For calculating the minimum distribution time for P2P distribution, we use the following formula:

Let X=1. Therefore Here,

F=1 Gbits= 1*1024=1024Mbits
u_s=3Mbps
d_i=2Mbps
N=20
u_i=X/10=1/10=0.1

venereology answered 1 month ago

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