COMPUTER FUNDAMENTALS

COMPUTER NETWORKS AND COMMUNICATIONS

NETWORK PROTOCOLS AND STANDARDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these is a correct definition of DNS?
A
An internet service that is used to detect errors
B
An internet service that stores data in large quantities for different companies
C
An internet service that provides a messaging service for users to communicate
D
An internet service that translates alphabetic names into IP addresses
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 name system (i.e., “DNS”) is responsible for translating domain names into a specific IP address so that the initiating client can load the requested Internet resources. The domain name system works much like a phone book where users can search for a requested person and retrieve their phone number.

Detailed explanation-3: -The correct answer is “option 3". CONCEPT: DNS, which stands for Domain Name System, maps domain name into Internet Protocol (IP) address. Hence, the DNS maps the IP addresses to a hierarchy of domain names.

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