Please define these terms.

Please define these terms:

  • Hierachical
  • Distributed
  • Domain Name
  • Root/Root Nameserver
  • Top Level Domain (TLD)
  • Parent Domain
  • Sub-Domain
  • Fully Qualified Domain Name (FQDN)

Sure! Here are the definitions of the terms you requested:

  1. Hierarchical: Hierarchical refers to a system or structure that is organized in levels or ranks, where each level is subordinated to the one above it. In the context of the internet, the hierarchical structure is evident in the domain name system (DNS), where domains are organized in a hierarchical manner, with higher-level domains encompassing lower-level domains.

  2. Distributed: Distributed refers to a system or network that is spread across multiple computers or locations, allowing for the sharing of resources and workload. In the context of the internet, distributed systems are used to store and deliver web content, ensuring redundancy, scalability, and fault tolerance.

  3. Domain Name: A domain name is a unique, human-readable identifier that is used to locate and access resources on the internet. It typically consists of two or more parts separated by dots, such as "". Domain names are used to represent specific websites or online services and are associated with an IP address.

  4. Root/Root Nameserver: The root nameserver refers to the highest level in the hierarchical domain name system. It is responsible for storing information about the top-level domains (TLDs) and their authoritative nameservers. There are 13 sets of root nameservers distributed worldwide, each managed by different organizations.

  5. Top-Level Domain (TLD): A top-level domain is the highest level in the hierarchical domain name system. It is the part of a domain name that comes after the dot, such as ".com," ".org," or ".net." TLDs are used to categorize and group domain names based on their purpose or geographic location. There are two main types of TLDs: generic top-level domains (gTLDs) and country code top-level domains (ccTLDs).

  6. Parent Domain: In the domain name system, a parent domain is the domain that is higher in the hierarchy and encompasses one or more sub-domains. For example, in the domain "," "" is the parent domain of the sub-domain ""

  7. Sub-Domain: A sub-domain is a part of a larger domain. It is created by adding a prefix to the domain name, separated by a dot. For instance, in the domain "," "subdomain" is the sub-domain of the domain "" Sub-domains can be used to organize and categorize different sections or services of a website.

  8. Fully Qualified Domain Name (FQDN): A fully qualified domain name is the complete and unambiguous domain name that specifies a particular location on the internet. It consists of the sub-domain(s), followed by the domain name, and finally the top-level domain. An example of an FQDN is "" The FQDN is used to uniquely identify and access a specific resource on the internet.

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