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MCQs -for Competitive Exams & Improve Knowledge

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What is the function of DNS in networking?

  • (A) Translate domain names to IP addresses
  • (B) Manage network traffic
  • (C) Ensure secure data transfer
  • (D) Control email flow

Answer: Translate domain names to IP addresses

DNS (Domain Name System) converts human-readable domain names into IP addresses that computers use to identify each other on the network.

What is the full form of WAN?

  • (A) Wide Area Network
  • (B) Wireless Area Network
  • (C) Web Area Network
  • (D) World Area Network

Answer: Wide Area Network

WAN (Wide Area Network) connects devices and networks across a large geographical area, such as cities or countries.

What is the function of the Hard Disk in a computer system?

  • (A) Process data
  • (B) Store data permanently
  • (C) Perform arithmetic calculations
  • (D) Execute instructions

Answer: Store data permanently

A Hard Disk Drive (HDD) is used for long-term storage of data, including the operating system, programs and files.

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What does SQL allow users to do?

  • (A) Process data
  • (B) Create databases
  • (C) Query and manipulate data
  • (D) Store data

Answer: Query and manipulate data

SQL (Structured Query Language) is used to interact with databases and perform various operations like querying and updating.

What is the full form of ISP?

  • (A) Internet Service Provider
  • (B) Internet Security Protocol
  • (C) Internal Service Protocol
  • (D) International Security Provider

Answer: Internet Service Provider

ISP (Internet Service Provider) is a company that provides internet access to consumers and businesses.

What is the function of SSD in a computer system?

  • (A) Provide permanent storage
  • (B) Increase processing speed
  • (C) Store temporary data
  • (D) Improve graphics rendering

Answer: Provide permanent storage

SSD (Solid State Drive) provides long-term data storage with faster access speed than traditional HDDs.

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What does the F in FLOPS stand for?

  • (A) Floating
  • (B) Fast
  • (C) Fixed
  • (D) Flow

Answer: Floating

FLOPS (Floating Point Operations Per Second) is a measure of computer performance in performing complex calculations.

What does XML stand for in data representation?

  • (A) Extensible Markup Language
  • (B) Executable Markup Language
  • (C) Extensible Management Language
  • (D) Extractable Markup Language

Answer: Extensible Markup Language

XML (Extensible Markup Language) is used to store and transport structured data in a human-readable format.

What does OS stand for in computing?

  • (A) Operating Software
  • (B) Operating System
  • (C) Open System
  • (D) Online Software

Answer: Operating System

OS (Operating System) manages computer hardware, software and provides an interface for users to interact with.

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What does TCP stand for in networking?

  • (A) Transmission Control Protocol
  • (B) Time Control Protocol
  • (C) Transport Control Protocol
  • (D) Transfer Control Protocol

Answer: Transmission Control Protocol

TCP (Transmission Control Protocol) ensures reliable communication between devices over a network.

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