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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

120 Questions
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Filter: All Exams css pms fpsc ppsc nts | All Easy Medium Hard
21
Easy ppsc nts

Which Excel feature is used to display only records matching specific criteria?

  • A Sort
  • B Filter
  • C Freeze Panes
  • D Conditional Formatting
Permalink
Correct Answer: Option B — Filter
Explanation: Filtering allows users to display only rows that meet specified conditions while temporarily hiding other records, making analysis easier.
Submitted by: PaperMCQs
22
Medium css fpsc

What is a Trojan Horse in cybersecurity?

  • A A network cable
  • B A type of malware disguised as legitimate software
  • C A firewall rule
  • D A backup utility
Permalink
Correct Answer: Option B — A type of malware disguised as legitimate software
Explanation: A Trojan Horse appears to be useful software but secretly performs malicious actions such as stealing information or providing unauthorized system access.
Submitted by: PaperMCQs
23
Easy nts

Which protocol is used to automatically obtain network configuration information?

  • A HTTP
  • B DHCP
  • C DNS
  • D SSH
Permalink
Correct Answer: Option B — DHCP
Explanation: DHCP automatically assigns IP addresses, subnet masks, gateways, and DNS settings to devices, simplifying network administration and reducing configuration errors.
Submitted by: PaperMCQs
24
Medium css fpsc

What is the purpose of a compiler?

  • A Execute programs directly
  • B Translate source code into machine code
  • C Store data permanently
  • D Manage networks
Permalink
Correct Answer: Option B — Translate source code into machine code
Explanation: A compiler converts high-level programming language code into machine code that can be executed by a computer. It also checks syntax and reports programming errors.
Submitted by: PaperMCQs
25
Medium fpsc nts

Which Excel function counts non-empty cells?

  • A COUNT()
  • B COUNTA()
  • C COUNTIF()
  • D SUM()
Permalink
Correct Answer: Option B — COUNTA()
Explanation: COUNTA counts all non-empty cells including text, numbers, and logical values. It is useful when determining how many cells contain data regardless of data type.
Submitted by: PaperMCQs
26
Easy ppsc nts

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
Permalink
Correct Answer: Option A — Basic Input Output System
Explanation: BIOS is firmware stored on a motherboard that initializes hardware during startup and loads the operating system. It performs essential checks and configuration tasks before handing control to the operating system.
Submitted by: PaperMCQs
27
Easy ppsc nts

Which search engine was founded by Larry Page and Sergey Brin?

  • A Yahoo
  • B Bing
  • C Google
  • D DuckDuckGo
Permalink
Correct Answer: Option C — Google
Explanation: Google was founded by Larry Page and Sergey Brin and became the world's leading search engine.
Submitted by: PaperMCQs
28
Medium css fpsc

What is artificial intelligence?

  • A Computer hardware
  • B Simulation of human intelligence by machines
  • C Network design
  • D Database storage
Permalink
Correct Answer: Option B — Simulation of human intelligence by machines
Explanation: Artificial Intelligence enables machines to perform tasks requiring human-like reasoning and learning.
Submitted by: PaperMCQs
29
Easy ppsc nts

Which software is used to create spreadsheets?

  • A PowerPoint
  • B Excel
  • C Access
  • D Outlook
Permalink
Correct Answer: Option B — Excel
Explanation: Microsoft Excel is a spreadsheet application used for calculations and data analysis.
Submitted by: PaperMCQs
30
Medium css fpsc

Which database operation removes a table completely?

  • A DELETE
  • B REMOVE
  • C DROP
  • D CLEAR
Permalink
Correct Answer: Option C — DROP
Explanation: DROP permanently removes an entire database object including structure and data.
Submitted by: PaperMCQs
31
Easy fpsc nts

What is the full form of VPN?

  • A Virtual Private Network
  • B Verified Public Network
  • C Virtual Program Node
  • D Visual Private Node
Permalink
Correct Answer: Option A — Virtual Private Network
Explanation: A VPN creates an encrypted connection over public networks to improve privacy.
Submitted by: PaperMCQs
32
Medium css fpsc

Which cyberattack encrypts files and demands payment?

  • A Spyware
  • B Ransomware
  • C Adware
  • D Trojan
Permalink
Correct Answer: Option B — Ransomware
Explanation: Ransomware locks or encrypts data and demands a ransom for restoration.
Submitted by: PaperMCQs
33
Medium css pms

What is multitasking in an operating system?

  • A Using multiple monitors
  • B Running multiple processes concurrently
  • C Installing multiple OS
  • D Using many files
Permalink
Correct Answer: Option B — Running multiple processes concurrently
Explanation: Multitasking enables an operating system to execute multiple programs seemingly at the same time.
Submitted by: PaperMCQs
34
Medium fpsc nts

Which protocol is used for receiving email in modern systems?

  • A IMAP
  • B SMTP
  • C DNS
  • D FTP
Permalink
Correct Answer: Option A — IMAP
Explanation: IMAP allows users to access and manage email directly on the server across devices.
Submitted by: PaperMCQs
35
Medium css fpsc

What is a database schema?

  • A Backup file
  • B Structure of a database
  • C Network device
  • D Programming language
Permalink
Correct Answer: Option B — Structure of a database
Explanation: A database schema defines tables, fields, relationships, and constraints.
Submitted by: PaperMCQs
36
Easy nts

Which Excel function returns the smallest value in a range?

  • A MAX()
  • B MIN()
  • C LOW()
  • D SMALL()
Permalink
Correct Answer: Option B — MIN()
Explanation: MIN() returns the lowest numeric value from a selected range.
Submitted by: PaperMCQs
37
Easy ppsc nts

What is the purpose of antivirus software?

  • A Create backups
  • B Design websites
  • C Detect and remove malicious software
  • D Manage databases
Permalink
Correct Answer: Option C — Detect and remove malicious software
Explanation: Antivirus software scans systems for malware and helps protect computers from threats.
Submitted by: PaperMCQs
38
Hard css pms

Which algorithm technique divides a problem into smaller subproblems?

  • A Greedy
  • B Divide and Conquer
  • C Brute Force
  • D Backtracking
Permalink
Correct Answer: Option B — Divide and Conquer
Explanation: Divide and Conquer breaks a problem into smaller parts, solves them independently, and combines results.
Submitted by: PaperMCQs
39
Easy fpsc nts

What is an IP address?

  • A Database key
  • B Unique network identifier
  • C Programming variable
  • D File format
Permalink
Correct Answer: Option B — Unique network identifier
Explanation: An IP address uniquely identifies a device on a network and enables communication.
Submitted by: PaperMCQs
40
Easy nts

Which file format is commonly used for presentations?

  • A .xlsx
  • B .pptx
  • C .accdb
  • D .csv
Permalink
Correct Answer: Option B — .pptx
Explanation: The .pptx format is the default file type for Microsoft PowerPoint presentations.
Submitted by: PaperMCQs
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