Computer Fundamentals MCQ Updated Data - April, 2026

Computer Fundamentals MCQ Updated Data - April, 2026
By Kuldeep Lodhi
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31.Which component is commonly referred to as the 'heart' of a computer??

  • A CPU
  • B RAM
  • C Motherboard
  • D GPU

Correct Answer: (A) CPU

Explanation: The CPU (Central Processing Unit) is often called the 'heart' of the computer as it performs most of the processing.

32.What is the primary function of BIOS in a computer system??

  • A Execute software applications
  • B Manage file storage
  • C Initialize hardware during booting
  • D Provide internet connectivity

Correct Answer: (C) Initialize hardware during booting

Explanation: BIOS (Basic Input/Output System) initializes hardware components and loads the operating system during the boot process.

33.In computer networking, what is the function of a router??

  • A Transmitter of data packets
  • B Direct data traffic between networks
  • C Store files remotely
  • D Convert digital signals to analog

Correct Answer: (B) Direct data traffic between networks

Explanation: A router connects multiple networks and directs data traffic between them.

34.What does the term 'data integrity' refer to in computing??

  • A Speed of data transfer
  • B Accuracy and consistency of data
  • C Volume of data storage
  • D Security of data access

Correct Answer: (B) Accuracy and consistency of data

Explanation: Data integrity ensures that the information is accurate and consistent over its lifecycle.

35.Which of the following best describes a drive's 'seek time'??

  • A Time taken to save data
  • B Time taken to retrieve data from storage
  • C Duration of data transfer
  • D Speed of the storage medium

Correct Answer: (B) Time taken to retrieve data from storage

Explanation: Seek time refers to the time taken by the read/write head to locate the correct track on a storage device.

36.What type of software is specifically built to control computer hardware??

  • A Application Software
  • B System Software
  • C Utility Software
  • D Firmware

Correct Answer: (B) System Software

Explanation: System software includes operating systems and any program that supports application software.

37.Which measure best describes the performance capability of a CPU??

  • A Clock speed
  • B Bus speed
  • C Memory size
  • D Hard drive capacity

Correct Answer: (A) Clock speed

Explanation: Clock speed, measured in GHz, indicates how many cycles a CPU can perform in one second, reflecting its performance.

38.In terms of computer security, what does a 'DDoS' attack stand for??

  • A Data-driven denial of service
  • B Distributed denial of service
  • C Dynamic denial of service
  • D Direct denial of service

Correct Answer: (B) Distributed denial of service

Explanation: DDoS stands for Distributed Denial of Service, which is an attack aimed at making a machine or network resource unavailable.

39.What type of network is characterized by its limited geographical range??

  • A WAN
  • B MAN
  • C LAN
  • D PAN

Correct Answer: (C) LAN

Explanation: A Local Area Network (LAN) is a network that connects computers within a limited geographical area.

40.Which of the following is a common use of virtualization technology??

  • A Enhance physical security
  • B Run multiple operating systems on one machine
  • C Increase power consumption
  • D Simplify hardware design

Correct Answer: (B) Run multiple operating systems on one machine

Explanation: Virtualization technology allows multiple operating systems to run on a single physical machine, improving resource utilization.