In the meantime, another friend has asked you to consult on their business networking needs. They are setting up a medium-sized technical literature e-publishing company, and they've rented a small campus of three single-story office buildings, each separated from the others by about a hundred feet or so of parking, driveway, trees and shrubs, etc. Each building will house the people and systems for one group of products, but all must be able to collaborate in a variety of ways. They want a resilient, fault-tolerant network, and they think they want each building to have its own set of servers (for different applications, etc.). About 100 user workstations are planned for each building, which includes wireless access from laptops etc. Access controls on the network should allow for segregation of access to information by location -- only those information assets in building 2 that are declared "public organization-wide" for example should be accessible to workers in the other two buildings. What features does this drive you to consider for the overall network? What do you see as absolutely essential, and what would be good "future-proofing" for growth in capabilities and usage? What features should they look for in the network interfaces in the various computers, laptops, servers, etc., that they will be buying?