Based on Review Question R$19$:

Suppose Host A wants to send a large file

to Host $B.$ The path from Host A to Host B

has three links, of rates $R_1=500kbps,R_2=$

$2000kbps,$ and $R_3=1000kbps.$

$($a$)$ Assuming no other traffic in the

network, what is the average throughput

for the file transfer? Give your answer as

an integer in kbps$.$

$($b$)$ Suppose the file is $4$ million bytes.

Dividing the file size by the average

throughput, how long will it take to

transfer the file to Host B$?$ Give you

answer as an integer in seconds.

Recall that $1$ byte $=8$ bits and $1kbps=$

$1000$ bps$.$

$($a$)$

kbps; $($b$)$

seconds