Domain Name System Hierarchy

A fully qualified domain name is supposed to have little ambiguity.

Domain name system hierarchy. The root name server is the name server for the root zone. Dns stores the database of all. Dns which stands for domain name system is used as the medium to translate domain names to their respective ip addresses when a client initiates a request query. The hierarchy of authoritative dns servers matches the hierarchy of domains.

Each domain or sub domain has one or more authoritative dns servers that publish information about that domain and the name servers of any domains beneath it. On your computer the top of your file system is usually c windows or linux. The dns root zone is the highest level in the dns hierarchy tree. The dns hierarchy is comprised of the following elements.

It associates various information with domain names assigned to each of the participating entities. For example the ajax domain that is shown in figure 3 5 has been registered as part of the internet com hierarchy. While computers communicate using strings of numbers humans obviously do not. 3 second level domains.

2 top level domains. The domain name system dns has a hierarchical inverted tree structure. The solution is to arrange the domains in a hierarchy. A domain is a subtree of the dns name space.

Well in the simplest definition dns is the term used to describe a system that assigns user friendly domain names to unique ip addresses. Dns name space hierarchy the name space is organised in a hierarchic tree. Domain names indicate a domain s position in the overall dns namespace much as path names indicate a file s position in the unix file system. The dns hierarchical inverted tree structure is called the dns namespace.

The domain name system dns is a hierarchical and decentralized naming system for computers services or other resources connected to the internet or a private network. Ou phannarith is one of the well known cybersecurity experts in cambodia and the region. It translates unfathomable amounts of data into words and phrases in order to provide clear and accurate search results. Responsibility for a subtree can be delegated to another organisation e g.

After your local domain is registered its name is added to the name of the internet hierarchy to which the domain belongs. A domain can further divided in to sub domains. Fqdn is otherwise called an absolute domain name. This takes the form of a tree like structure that resembles the file system structure found on computers.