a.
Explanation of Solution
The formula used for calculating the bandwidth-delay product is
The expression used for calculating the propagation delay in terms of meters (m) and seconds (s) is
Substitute, “20,000” for “m” and “2.5 ×108” for “s”
The propagation delay of the link is
b.
Explanation of Solution
The size of the file transmitted from Host A to Host B is 800,000 bits...
c.
Explanation of Solution
The formula used for calculating the width of a bit present on the link is as follows
The formula used for calculating the bandwidth-delay product is
The expression used for calculating the propagation delay in terms of meters (m) and seconds (s) is
Substitute, “20,000” for “m” and “2.5 ×108” for “s”
The propagation delay of the link is
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Computer Networking: A Top-Down Approach (7th Edition)