COMPUTER FUNDAMENTALS

INTRODUCTION TO COMPUTERS

COMPUTER NETWORKS AND THE INTERNET

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Please explain the function of DNS.
A
We access the Internet (ex.www.google.com) uses the domain name, DNS translate the domain name into IP address, so browsers can load Internet resources.
B
We access the Internet (ex.www.google.com) uses the IP address, DNS translate IP address into domain name, so browsers can load Internet resources.
C
We access the Internet (ex.www.google.com) uses the IP address, DNS translate the domain name into IP address, so browsers can load Internet resources.
D
We access the Internet (ex.www.google.com) uses the domain name, DNS translate IP address into domain name, so browsers can load Internet resources.
Explanation: 

Detailed explanation-1: -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 that website.

Detailed explanation-2: -The Domain Network System (DNS) protocol helps Internet users and network devices discover websites using human-readable hostnames, instead of numeric IP addresses.

Detailed explanation-3: -The DNS layer provides networking support to identify and locate computer services and devices with the corresponding protocols. Simply put, when a client application requests that a domain name be converted into an IP address, the task is completed within the application layer by DNS.

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