PRESENTATION
PRESENTATION DOMAIN NAME SYSTEM Each domain name has a corresponding IP address When the user types the domain name in the address bar, the corresponding IP address is supplied. Such a translation is possible with the help of system called DNS (DOMAIN NAME SYSTEM) DEFINITION: “DOMAIN NAME SYSTEM is a collection of the databases that contain information about domain names and their corresponding IP address.” PURPOSE OF NAMING Addresses are used to locate objects Names are easier to remember than numbers You would like to get to the address or other objects using a name DNS provides a mapping from names to resources of several types DOMAIN NAME Domain name is a way to identify and locate computers connected to internet No two organizations can have same domain name A domain name always consists of two or more components separated by periods called dots (.) EXAMPLE: www.yahoo.co.in, www.facebook.com etc....