Although it's not necessary to become an expert on TCP/IP to run a network, some basic knowledge is required. Likewise, although Windows 2000 Server provides tools for administering DNS, WINS, and DHCP servers, there's no substitute for an understanding of how all these functions come together. TCP/IP and DNS in particular are worth studying in some depth because so many network difficulties can be traced to the misconfiguration of one or the other. The next chapter covers the configuration of hard disks for maximum efficiency and security.