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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

179 Questions Subject Test
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1
Easy nts Uploaded: 23 Aug 2026

What is the term for a network of infected computers controlled remotely?

  • A Botnet
  • B Firewall
  • C VPN
  • D Router
2
Easy nts Uploaded: 20 Jun 2026

What does PDF stand for?

  • A Portable Document Format
  • B Personal Data File
  • C Printed Document Form
  • D Public Data Format
3
Hard nts Uploaded: 23 Aug 2026

Which memory type stores the BIOS?

  • A RAM
  • B ROM
  • C Virtual Memory
  • D Cache
4
Easy ppsc nts Uploaded: 20 Jun 2026

What is the intersection of a row and a column in Excel called?

  • A Workbook
  • B Worksheet
  • C Cell
  • D Range
5
Medium css pms fpsc ppsc nts Uploaded: 01 Jul 2026

What does "GPT" stand for in ChatGPT?

  • A Global Prediction Technique
  • B Generative Pre-trained Transforme
  • C General Processing Tool
  • D Graphical Pattern Tracke
6
Easy fpsc nts Uploaded: 20 Jun 2026

What is an IP address?

  • A Database key
  • B Unique network identifier
  • C Programming variable
  • D File format
7
Easy nts Uploaded: 09 Aug 2026

What is the main purpose of an antivirus program?

  • A Detect and remove malicious software
  • B Manage files
  • C Browse internet
  • D Speed up computer
8
Hard nts Uploaded: 13 Aug 2026

Which of the following best defines 'syntax error'?

  • A Hardware malfunction
  • B Violation of programming language rules
  • C Network failure
  • D Logical mistake in code
9
Easy ppsc nts Uploaded: 20 Jun 2026

Which command is used to add new records to a database table?

  • A UPDATE
  • B SELECT
  • C INSERT
  • D ALTER
10
Easy fpsc nts Uploaded: 20 Jun 2026

Which type of memory loses its contents when power is turned off?

  • A ROM
  • B Flash Memory
  • C RAM
  • D Hard Disk
11
Easy ppsc nts Uploaded: 20 Jun 2026

What does BIOS stand for?

  • A Basic Input Output System
  • B Binary Input Operating System
  • C Basic Integrated Operating Software
  • D Built-In Output System
12
Medium nts Uploaded: 13 Aug 2026

Which shortcut key is used to select all content in a document?

  • A Ctrl+A
  • B Ctrl+P
  • C Ctrl+F
  • D Ctrl+S
13
Easy nts Uploaded: 20 Jun 2026

Which network device broadcasts data to all ports?

  • A Router
  • B Switch
  • C Hub
  • D Gateway
14
Hard nts Uploaded: 09 Aug 2026

Which of the following is the fastest memory in a computer?

  • A RAM
  • B Cache
  • C Hard Disk
  • D ROM
15
Easy nts Uploaded: 20 Jun 2026

Which key combination opens the Find dialog box in MS Word?

  • A Ctrl+H
  • B Ctrl+F
  • C Ctrl+N
  • D Ctrl+L
16
Hard nts Uploaded: 07 Aug 2026

Which layer of the OSI model is responsible for routing?

  • A Transport Layer
  • B Application Layer
  • C Data Link Layer
  • D Network Layer
17
Medium nts Uploaded: 13 Aug 2026

What is a computer virus?

  • A An antivirus tool
  • B A network protocol
  • C A self-replicating malicious program
  • D A hardware component
18
Medium fpsc nts Uploaded: 20 Jun 2026

Which protocol is used for receiving email in modern systems?

  • A IMAP
  • B SMTP
  • C DNS
  • D FTP
19
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Which bus is primarily responsible for transferring data between the CPU and memory?

  • A Address Bus
  • B Expansion Bus
  • C Control Bus
  • D Data Bus
20
Medium nts Uploaded: 23 Aug 2026

Which file format is commonly used for images with transparency?

  • A PNG
  • B BMP
  • C GIF
  • D JPEG
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