Essay 2 - 1 The Domain Name System(DNS acts as a main...

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1 The Domain Name System (DNS) acts as a main directory of domain names which is translated from various IP addresses. The Domain Name System is used to provide information to the Domain Name Service to use when queries are made. The Domain name service is the act of querying the database, and the system is the data structure and data itself. The Domain Name System is similar to a file system in UNIX or DOS starting with a root. Branches attach to the root to create a huge set of paths. Each branch in the DNS is called a label. Each label can be 63 characters long, but most are less. Each text word between the dots can be 63 characters in length, with the total domain name (all the labels) limited to 255 bytes in overall length. The domain name system database is divided into several zones. The name servers each zones are responsible for answering completing queries for their zones. A zone is a subtree of DNS and is administered separately. There are multiple name servers for a zone. There is usually one primary nameserver and one or more secondary name servers. A name
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