Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 13 Sep 2017 My Price 6.00

problem P25

Referring to problem P25, suppose we can modify R. For what value of R is the width of a bit as long as the length of the link?

Problem P25

Suppose two hosts, A and B, are separated by 20,000 kilometers and are connected by a direct link of R = 2 Mbps. Suppose the propagation speed over the link is 2.5 108 meters/sec.

a. Calculate the bandwidth-delay product, R dprop.

b. Consider sending a file of 800,000 bits from Host A to Host B. Suppose the file is sent continuously as one large message. What is the maximum number of bits that will be in the link at any given time?

c. Provide an interpretation of the bandwidth-delay product.

d. What is the width (in meters) of a bit in the link? Is it longer than a football field?

e. Derive a general expression for the width of a bit in terms of the propagation speed s, the transmission rate R, and the length of the link m.

Answers

Maurice Tutor
(5)
Status NEW Posted 13 Sep 2017 09:09 AM My Price 6.00

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