What is DNS in Networking System? | amcooltech

What is DNS in Networking System?

What is DNS in Networking System? 
Website have both Friendly address, called a URL and an IP address  people use URl to find website, but computer use IP address to find website. DNS translates URL into Ip address. Example if you type
www.facebook.com into the address bar in your web browser, your  computer send a result to DNS server translator the URl into an IP address so that your computer can find the facebook web server.
URL: an address that uniquely identifies a location on the internet (URL)
IP Address: internet protocol address. An Ip address identifies a computer that is connected to the internet or a network
There are two  types of IP address
(
1) IP version 4 (IPV4) and IP Version (IPV6)

Note: (a) IP Version 4 address usually consists of four groups of Numbers Separated by periods, example 192.200.44.69.

(b)IP version 6 address has eight groups of hexadecimal character
(the numbers  0-9 and the letter A-H ) separated by colons. Example 3ffe;fff0000;24fd,211g

The  last  part of URL  is called a top level domain name

Top – Level Domain
Stand For
.Com
Commercial (Business) Site
.Net
Internet admin
.ORG
Nonproft organization
.gov
U.S government  agency
.edu
Educational institution
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