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Domain Name System (DNS) is a hierarchical naming system for computers and other devices on the Internet. When a user types in a web address, like www.google.

com, the DNS system looks up the address in a DNS database to find the server that holds the web page. The DNS database is a set of records, or zones, that store the names and IP addresses of computers and other devices on the Internet. .

DNS is similar to the domain name system that is used on the World Wide Web. DNS is used to translate human-readable domain names into IP addresses. For example, the domain name google.com is converted to the IP address 172.

217.17.140.

DNS is a hierarchical system. At the top of the hierarchy is the root zone, which is the zone that contains the root names of all the other zones. The root zone is in the United States. Below the root zone are the two secondary zones, europe and asia.

Each zone contains a list of hostnames. For example, the hostname www.com is in the europe zone.

When you type www.com into your web browser, your computer looks up the hostname www.

com in the europe zone and sends a request to the hostname server for the www.com website. The hostname server is probably located in the United States, but the exact location is not known.

DNS is a hierarchical system, which means that each hostname is associated with a certain level in the hierarchy. The www.

com hostname is associated with the second level in the hierarchy, which is the zone. The zone is in the United States. The zone contains a list of hostnames, which are the hostnames that are associated with the www.com hostname.

The hostname www.com is also in the asia zone. The asia zone contains a list of hostnames, which are the hostnames that are associated with the www.

google. The asia zone is in Japan.

If you type www.

com in the asia zone and sends a request to the hostname server for the www. The hostname server is probably located in Japan, but the exact location is not known.

The DNS system is a hierarchical system, which means that each hostname is associated with a certain level in the hierarchy.