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A root name server is a ... the term "root name server" is generally used to describe the thirteen well-known root name servers that implement the root name space ...
The DNS root zone is the top-level DNS zone in the hierarchical namespace of the Domain Name System (DNS) of the Internet.. Before October 1, 2016, the root zone had been overseen by the Internet Corporation for Assigned Names and Numbers (ICANN) which delegates the management to a subsidiary acting as the Internet Assigned Numbers Authority (IANA). [1]
This mechanism would place a large traffic burden on the root servers, if every resolution on the Internet required starting at the root. In practice caching is used in DNS servers to off-load the root servers, and as a result, root name servers actually are involved in only a relatively small fraction of all requests.
When querying one of the root name servers, it is possible that the root zone will not directly contain a record for "en.wikipedia.org.", in which case it will provide a referral to the authoritative name servers for the "org." top-level domain (TLD). The resolver is issued a referral to the authoritative name servers for the "org." zone, which ...
The most important function of DNS servers is the translation (resolution) of human-memorable domain names and hostnames into the corresponding numeric Internet Protocol (IP) addresses, the second principal name space of the Internet which is used to identify and locate computer systems and resources on the Internet.
The Internet Assigned Numbers Authority (IANA) is a standards organization that oversees global IP address allocation, autonomous system number allocation, root zone management in the Domain Name System (DNS), media types, and other Internet Protocol–related symbols and Internet numbers.
.chn is a new top-level domain with its own root DNS server for an Internet of Things (IoT) network in China. The company developing this alternative root claims that China has its own intellectual right on this new alternative domain name root and the associated IoT network, and that it will become the second computer network in the world.
FQPN is also used in Networking and takes the following form: \root\FQDN\path-to\file.ext[OR]directory, where /root/ is the root directory, the first or top-most directory in a hierarchy, and, in this case, the rooted tree; FQDN is the fully qualified domain name or node.