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assignment2_solutions

# assignment2_solutions - Solutions Assignment#1(Based on...

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Solutions: Assignment #1 (Based on Edition 2 of Textbook) Page 2 of 10 ± 2.34. Suppose the population of the world is 4 billion, and that there is an average of 1000 communicating devices per person. a) How many bits are required to assign a unique host address to each communicating device? b) Suppose that each device attaches to a single network and that each network on average has 10000 devices. How many bits are required to provide unique network ids to each network? Solution: a) number of devices in the world = 4x10 9 * 1000 = 4x10 12 . Each device is to have a unique binary host address. The number of bits required to accommodate 4x10 12 devices is: log 2 (4x10 12 ) = 41.9 Therefore, 42 bits are required to assign a unique host address to each communicating device. b) We need to determine the number of networks, given that each network has 10000 devices attached. As a result, number of networks = 4x10 12 /10000 = 4x10 8 .
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assignment2_solutions - Solutions Assignment#1(Based on...

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