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1 IT ABBREVIATIONS MCQS

What is the abbreviation of DNS in computer networking?

  • Domain Name System
  • Digital Network Server
  • Data Node Structure
  • Domain Network Service
Correct Answer: A. Domain Name System

Detailed Explanation

DNS stands for Domain Name System, and it is a core component of internet functionality. Its main purpose is to translate human-readable domain names (like example.com) into machine-readable IP addresses (like 192.0.2.1). Without DNS, users would need to remember and enter IP addresses to access websites, which would be highly impractical.


When a user types a web address into a browser, the DNS server looks up the IP address linked to that domain. This process is called name resolution. DNS operates in a hierarchical structure and uses a distributed network of servers to perform this resolution quickly and accurately.


The DNS system includes different types of records, such as A (Address) records, MX (Mail Exchange), CNAME (Canonical Name), and others. These records help direct internet traffic correctly and efficiently.

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