The term DNS stands for-

Domain Name system
Defence nuclear system
Downloadable new Software
Dependent Name Server

The correct answer is: A. Domain Name System

A domain name system (DNS) is a hierarchical distributed database that translates human-readable domain names to IP addresses. It is an essential component of the Internet, as it allows users to access websites by typing in a domain name instead of an IP address.

The other options are incorrect.

  • Option B: Defence nuclear system is incorrect. The term DNS does not stand for Defence nuclear system.
  • Option C: Downloadable new Software is incorrect. The term DNS does not stand for Downloadable new Software.
  • Option D: Dependent Name Server is incorrect. The term DNS does not stand for Dependent Name Server.