Simple query on cn


Consider a MAN with server and destination of 20 km apart and one way delay is 2 minutes. At what data rate does RTT equals to transmission delay for 2 KB data?
A. 41 bits/ sec
B. 68.2 bps
C. 69 bps
D. 40 bps


Answer must be B
Since for one rtt we need 2Tp time we know one Tp equal to 2 min and Tt = Length of data / Bandwidth
So solve 2
Tp =Tt. You will find your answer