Suppose you are to design a LAN for a company that has 100 employees, each given a desktop computer attached to the LAN. What should be the data rate of the LAN if the typical use of the LAN is shown below:
a. Each employee needs to retrieve a file of average size of 10 megabytes in a second. An employee may do this on average 10 times during the eighthour working time.
b. Each employee needs to access the Internet at 250 Kbps. This can happen for 10 employees simultaneously.
c. Each employee may receive 10 e-mails per hour with an average size of 100 kilobytes. Half of the employees may receive e-mails simultaneously.