Question: What Are The Components Of DNS?

The DNS has three major components:

  • The DOMAIN NAME SPACE and RESOURCE RECORDS, which are specifications for a tree structured name space and data associated with the names.
  • NAME SERVERS are server programs which hold information about the domain tree’s structure and set information.

What are the three domains of DNS?

DNS is a TCP/IP protocol used on different platforms. The domain name space is divided into three different sections: generic domains, country domains, and inverse domain.

What is the concept of DNS?

The domain name system (DNS) is a naming database in which internet domain names are located and translated into internet protocol (IP) addresses. The domain name system maps the name people use to locate a website to the IP address that a computer uses to locate a website.

What is DNS and its purpose?

Domain Name Servers (DNS) are the Internet’s equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.

What is DNS and its types?

What are the different types of DNS server? All DNS servers fall into one of four categories: Recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

Is DNS a protocol?

(Although many people think “DNS” stands for “Domain Name Server,” it really stands for “Domain Name System.”) DNS is a protocol within the set of standards for how computers exchange data on the internet and on many private networks, known as the TCP/IP protocol suite.

How DNS works step by step?

How does DNS work?

  1. Step 1: Request information.
  2. Step 2: Ask the recursive DNS servers.
  3. Step 3: Ask the root name servers.
  4. Step 4: Ask the TLD name servers.
  5. Step 5: Ask the authoritative DNS servers.
  6. Step 6: Retrieve the record.
  7. Step 7: Receive the answer.

What are the two types of DNS?

What are the different types of DNS server? All DNS servers fall into one of four categories: Recursive resolvers, root nameservers, TLD nameservers, and authoritative nameservers.

What is DNS endpoint?

The DnsEndPoint class contains a host name or an IP address and remote port information needed by an application to connect to a service on a host. By combining the host name or IP address and port number of a service, the DnsEndPoint class forms a connection point to a service.

What is default gateway IP?

Ad. In the networking world, a default gateway is an IP address that traffic gets sent to when it’s bound for a destination outside the current network. On most home and small business networks—where you have a single router and several connected devices—the router’s private IP address is the default gateway.

What does DNS stand for in government?

DNS in Government

DNSDay/Night Sight military, ministry of defence
DNSDetermination of Non-Significance city, locations, building
DNSDirect Network Subscriber military, ministry of defence
DNSDisability News Service benefit, organizations
DNSDomain Name Server + 2 variants education, computer networking, publishing

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What DNS should I use?

Public DNS Servers

Personally, I prefer OpenDNS (208.67. 220.220 and 208.67. 222.222) and Google Public DNS (8.8. 8.8 and 8.8.

What is the purpose of DNS protocol?

Domain Name Servers (DNS) are the Internet’s equivalent of a phone book. They maintain a directory of domain names and translate them to Internet Protocol (IP) addresses. This is necessary because, although domain names are easy for people to remember, computers or machines, access websites based on IP addresses.