linking back to DNS Glossary article
==The Value and Vulnerability of DNS==
'''The Domain Name System (DNS)''' has proven to be an invaluable method for quickly navigating around the Internet. By organizing the structure into zones, the DNS hierarchy allows for the efficient locating of desired destination sites on the Internet. Such structure allows for a defined methodology for how each zone is queried to return the IP address of the desired destination host. The structure is designed so that if the higher zones do not have the specific IP address of the desired destination, the structure is designed to provide navigation through the structure until the desired destination has been identified.