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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

179 Questions Subject Test
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Filter: All Exams css pms fpsc ppsc nts | All Easy Medium Hard
141
Easy ppsc nts Uploaded: 20 Jun 2026

Which MS Word feature is used to create personalized letters for multiple recipients?

  • A Track Changes
  • B Mail Merge
  • C WordArt
  • D AutoCorrect
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142
Easy nts Uploaded: 13 Aug 2026

What is the main purpose of a compiler's syntax analysis phase?

  • A Manage memory allocation
  • B Check code structure against language grammar rules
  • C Execute the program
  • D Store data
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143
Medium css pms fpsc ppsc nts Uploaded: 01 Jul 2026

What is the full form of "NLP" in Artificial Intelligence and Computer Science?

  • A Numeric Learning Program
  • B Network Layer Protocol
  • C Neural Logic Processing
  • D Natural Language Processing
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144
Easy nts Uploaded: 13 Aug 2026

What is an entity in a database context?

  • A A software bug
  • B A real-world object or concept represented in a database
  • C A network device
  • D A type of query
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145
Hard nts Uploaded: 09 Aug 2026

Which of the following is a function of the transport layer in networking?

  • A Displaying web pages
  • B Routing packets
  • C Ensuring reliable data transfer
  • D Physical cabling
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146
Easy nts Uploaded: 13 Aug 2026

Which is an example of open-source operating system?

  • A macOS
  • B Windows
  • C iOS
  • D Linux
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147
Hard nts Uploaded: 23 Aug 2026

What is the purpose of cookies in web browsing?

  • A To store user data for websites
  • B To manage hardware drivers
  • C To compress images
  • D To speed up the CPU
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148
Easy ppsc nts Uploaded: 20 Jun 2026

Which search algorithm checks each element sequentially?

  • A Binary Search
  • B Linear Search
  • C Interpolation Search
  • D Hash Search
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149
Easy nts Uploaded: 13 Aug 2026

What is the purpose of a 'patch' in software?

  • A Format a disk
  • B Create a backup
  • C Fix bugs or security vulnerabilities in software
  • D Add new hardware
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150
Medium nts Uploaded: 07 Aug 2026

What is the function of an antivirus program?

  • A Create documents
  • B Increase internet speed
  • C Format hard drives
  • D Detect and remove malicious software
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151
Medium css pms fpsc ppsc nts Uploaded: 22 Jun 2026

What is the default port number for HTTPS?

  • A 21
  • B 25
  • C 80
  • D 443
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152
Medium fpsc nts Uploaded: 20 Jun 2026

What is the purpose of a checksum?

  • A Compress data
  • B Verify data integrity
  • C Increase speed
  • D Encrypt files
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153
Medium nts Uploaded: 23 Aug 2026

What is the function of a switch in networking?

  • A To direct data only to the intended device
  • B To broadcast data to all devices
  • C To provide internet access
  • D To store files
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154
Medium nts Uploaded: 07 Aug 2026

What is the main advantage of using SSD over HDD?

  • A Higher power consumption
  • B Larger physical size
  • C Faster data access speed
  • D Lower cost per gigabyte
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155
Easy nts Uploaded: 20 Jun 2026

Which Excel symbol is used to begin a formula?

  • A #
  • B @
  • C =
  • D $
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156
Easy nts Uploaded: 20 Jun 2026

Which Excel function returns the smallest value in a range?

  • A MAX()
  • B MIN()
  • C LOW()
  • D SMALL()
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157
Hard nts Uploaded: 07 Aug 2026

Which of the following best describes 'multithreading'?

  • A Running multiple operating systems simultaneously
  • B Connecting multiple computers via a network
  • C Executing multiple threads concurrently within a single process
  • D Storing data across multiple hard drives
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158
Medium css pms fpsc ppsc nts Uploaded: 25 Jun 2026

Which sorting algorithm generally provides the best average-case performance for large datasets?

  • A Quick Sort
  • B Merge Sort
  • C Bubble Sort
  • D Selection Sort
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159
Medium fpsc nts Uploaded: 20 Jun 2026

Which SQL clause is used to filter rows before grouping?

  • A HAVING
  • B GROUP BY
  • C WHERE
  • D ORDER BY
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160
Easy nts Uploaded: 07 Aug 2026

Which key is used to delete a character to the left of the cursor?

  • A Backspace
  • B Enter
  • C Delete
  • D Tab
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