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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

162 Questions Subject Test
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81
Medium fpsc Uploaded: 13 Aug 2026

What is an algorithm?

  • A A type of hardware
  • B A programming language
  • C A database structure
  • D A step-by-step procedure to solve a problem
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82
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Who is widely regarded as the father of Computer Science?

  • A John von Neumann
  • B Alan Turing
  • C Charles Babbage
  • D Bill Gates
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83
Medium fpsc nts Uploaded: 20 Jun 2026

Which SQL command modifies existing records?

  • A INSERT
  • B DELETE
  • C UPDATE
  • D SELECT
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84
Easy fpsc ppsc Uploaded: 09 Aug 2026

What does 'LAN' stand for?

  • A Long Area Network
  • B Large Area Network
  • C Local Area Network
  • D Local Access Network
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85
Medium fpsc Uploaded: 13 Aug 2026

Which key combination is used to copy text?

  • A Ctrl+X
  • B Ctrl+V
  • C Ctrl+Z
  • D Ctrl+C
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86
Hard fpsc Uploaded: 23 Aug 2026

What is the purpose of software updates?

  • A To fix bugs and improve security
  • B To slow down the computer
  • C To disconnect from networks
  • D To delete user data
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87
Easy fpsc Uploaded: 09 Aug 2026

Which of the following best describes 'cloud storage'?

  • A Storing data on a local hard disk
  • B Storing data on a CD
  • C Storing data on remote servers accessed via internet
  • D Storing data on RAM
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88
Hard css fpsc Uploaded: 07 Aug 2026

What is the primary function of DHCP in networking?

  • A Automatically assign IP addresses to devices
  • B Compress data packets
  • C Encrypt network traffic
  • D Block unauthorized websites
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89
Easy fpsc Uploaded: 13 Aug 2026

What is the extension of a Python file?

  • A .py
  • B .pt
  • C .pn
  • D .pyt
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90
Medium fpsc Uploaded: 07 Aug 2026

Which of the following best describes object-oriented programming?

  • A Programming that avoids functions
  • B Programming without variables
  • C Programming using only numbers
  • D Programming based on objects containing data and methods
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91
Medium css fpsc Uploaded: 20 Jun 2026

Which database operation removes a table completely?

  • A DELETE
  • B REMOVE
  • C DROP
  • D CLEAR
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92
Easy fpsc Uploaded: 07 Aug 2026

Which of the following best describes 'cloud computing'?

  • A A type of weather forecasting software
  • B A programming language for websites
  • C Delivery of computing services over the internet
  • D Storing data only on local hard drives
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93
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

On which tab in Microsoft Word can you find the Header and Footer commands?

  • A Home
  • B References
  • C View
  • D Insert
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94
Easy fpsc Uploaded: 23 Aug 2026

What is encapsulation in OOP?

  • A Connecting to a network
  • B Deleting unused code
  • C Compiling a program
  • D Bundling data and methods into a single unit
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95
Medium css fpsc Uploaded: 20 Jun 2026

Which of the following is a NoSQL database?

  • A Oracle
  • B MySQL
  • C MongoDB
  • D PostgreSQL
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96
Easy fpsc Uploaded: 07 Aug 2026

The binary number system uses how many digits?

  • A 16
  • B 2
  • C 8
  • D 10
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97
Medium fpsc Uploaded: 23 Aug 2026

What is the purpose of a VPN?

  • A To increase screen resolution
  • B To store files
  • C To manage printers
  • D To create a secure encrypted connection over a network
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98
Medium css fpsc Uploaded: 20 Jun 2026

What is the time complexity of Binary Search in the worst case?

  • A O(n)
  • B O(log n)
  • C O(n²)
  • D O(1)
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99
Medium css fpsc Uploaded: 20 Jun 2026

Which programming language is commonly used for data analysis and machine learning?

  • A COBOL
  • B Python
  • C Pascal
  • D Fortran
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100
Medium fpsc Uploaded: 13 Aug 2026

What is an API?

  • A Application Programming Interface
  • B Application Process Integration
  • C Automated Programming Instruction
  • D Advanced Program Interaction
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