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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

601 Questions Subject Test
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Strengthen your knowledge of computer fundamentals, hardware, software, programming, networks, databases and information technology.

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201
Hard pms Uploaded: 23 Aug 2026

Which of the following is a type of computer network based on geographic area?

  • A WAN
  • B RAM
  • C GUI
  • D CPU
202
Medium fpsc ppsc Uploaded: 20 Jun 2026

Which scheduling algorithm gives each process a fixed time slice?

  • A FCFS
  • B Round Robin
  • C Shortest Job First
  • D Priority Scheduling
203
Medium nts Uploaded: 13 Aug 2026

What is two-factor authentication?

  • A A backup method
  • B Using two passwords only
  • C A type of firewall
  • D A security process requiring two forms of verification
204
Hard css Uploaded: 23 Aug 2026

What is the function of an antivirus signature database?

  • A To identify known malware patterns
  • B To manage network traffic
  • C To store user passwords
  • D To compress files
205
Easy css Uploaded: 09 Aug 2026

Which of the following file extensions is used for Python files?

  • A .py
  • B .exe
  • C .html
  • D .java
206
Medium nts Uploaded: 13 Aug 2026

Which of the following describes 'many-to-many' relationship in a database?

  • A One record relates to one record only
  • B One record relates to many records only
  • C Multiple records in one table relate to multiple in another
  • D No relationship exists
207
Easy css Uploaded: 07 Aug 2026

What is the purpose of a subnet mask in networking?

  • A Increase internet speed
  • B Store website content
  • C Divide an IP network into smaller sub-networks
  • D Encrypt data transmission
208
Easy nts Uploaded: 23 Aug 2026

Which of the following is a type of computer virus that spreads without user action?

  • A Adware
  • B Spyware
  • C Trojan
  • D Worm
209
Medium css pms Uploaded: 20 Jun 2026

Which Excel reference remains fixed when copied?

  • A Relative Reference
  • B Mixed Reference
  • C Absolute Reference
  • D Dynamic Reference
210
Medium pms Uploaded: 13 Aug 2026

What is the purpose of a 'checksum'?

  • A Verify data integrity during transmission
  • B Encrypt files
  • C Compress data
  • D Increase network speed
211
Easy nts Uploaded: 09 Aug 2026

What does HTML stand for?

  • A Hyper Text Making Language
  • B High Text Markup Language
  • C Hyper Text Markup Language
  • D Hyper Trainer Markup Language
212
Easy nts Uploaded: 13 Aug 2026

Which data structure uses FIFO (First In First Out)?

  • A Tree
  • B Queue
  • C Stack
  • D Graph
213
Medium ppsc Uploaded: 07 Aug 2026

Which of the following is a type of computer network covering a small geographic area?

  • A MAN
  • B GAN
  • C WAN
  • D LAN
214
Medium nts Uploaded: 23 Aug 2026

Which generation of computers introduced microprocessors?

  • A First
  • B Third
  • C Fourth
  • D Second
215
Medium css Uploaded: 13 Aug 2026

What is the purpose of a CAPTCHA?

  • A Encrypt data
  • B Backup files
  • C Distinguish humans from bots
  • D Speed up browsing
216
Hard fpsc Uploaded: 23 Aug 2026

Which of the following is a client-side scripting language?

  • A JavaScript
  • B Python
  • C PHP
  • D SQL
217
Medium css fpsc Uploaded: 20 Jun 2026

Which cyberattack encrypts files and demands payment?

  • A Spyware
  • B Ransomware
  • C Adware
  • D Trojan
218
Medium fpsc Uploaded: 09 Aug 2026

What is the function of a router?

  • A Print documents
  • B Display images
  • C Connect multiple networks and direct data traffic
  • D Store data
219
Easy nts Uploaded: 13 Aug 2026

What does GPS stand for?

  • A Global Positioning System
  • B General Processing System
  • C Global Processing System
  • D General Positioning System
220
Hard css Uploaded: 07 Aug 2026

Which of the following is a common file compression format?

  • A DOC
  • B ZIP
  • C PDF
  • D EXE
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