Computer Dynamics is a microcomputer software development company that has a 300-computer network. The company is located in three adjacent ?ve-story buildings in an of?ce park, with about 100 computers in each building. The current network is a poorly designed mix of Ethernet and token ring (Ethernet in two buildings and token ring in the other). The networks in all three buildings are heavily overloaded, and the company EXERCISES 467 anticipates signi?cant growth in network traf?c. There is currently no network connection among the buildings, but this is one objective in building the new network. Describe the network you would recommend and how it would be con?gured with the goal of building a new network that will support the company's needs for the next 3 years with few additional investments. Be sure to include the devices and type of network circuits you would use. You will need to make some assumptions, so be sure to document your assumptions and explain why you have designed the network in this way.