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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

120 Questions
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41
Medium css fpsc

Which layer of OSI handles physical transmission of bits?

  • A Network
  • B Transport
  • C Physical
  • D Session
Permalink
Correct Answer: Option C — Physical
Explanation: The Physical Layer is responsible for transmitting raw bits over communication channels.
Submitted by: PaperMCQs
42
Easy fpsc nts

What is phishing?

  • A Programming method
  • B Data backup
  • C Fraudulent attempt to steal information
  • D Network topology
Permalink
Correct Answer: Option C — Fraudulent attempt to steal information
Explanation: Phishing attacks trick users into revealing passwords and sensitive information through fake messages or websites.
Submitted by: PaperMCQs
43
Medium fpsc nts

Which SQL command modifies existing records?

  • A INSERT
  • B DELETE
  • C UPDATE
  • D SELECT
Permalink
Correct Answer: Option C — UPDATE
Explanation: The UPDATE statement changes existing records in a database table according to specified conditions.
Submitted by: PaperMCQs
44
Easy ppsc nts

What is cloud storage?

  • A Local disk storage
  • B Storage accessible via the internet
  • C RAM allocation
  • D CPU cache
Permalink
Correct Answer: Option B — Storage accessible via the internet
Explanation: Cloud storage allows users to store and access files over the internet using remote servers.
Submitted by: PaperMCQs
45
Easy nts

Which key combination cuts selected content?

  • A Ctrl+C
  • B Ctrl+V
  • C Ctrl+X
  • D Ctrl+Z
Permalink
Correct Answer: Option C — Ctrl+X
Explanation: Ctrl+X removes selected content and places it on the clipboard, allowing it to be pasted elsewhere.
Submitted by: PaperMCQs
46
Easy fpsc nts

What is malware?

  • A Network cable
  • B Malicious software
  • C Database table
  • D Operating system
Permalink
Correct Answer: Option B — Malicious software
Explanation: Malware refers to software intentionally designed to damage, disrupt, steal data from, or gain unauthorized access to systems.
Submitted by: PaperMCQs
47
Easy nts

Which network device broadcasts data to all ports?

  • A Router
  • B Switch
  • C Hub
  • D Gateway
Permalink
Correct Answer: Option C — Hub
Explanation: A hub sends incoming data to all connected ports without filtering, making it less efficient and secure than a switch.
Submitted by: PaperMCQs
48
Medium css fpsc

Which programming language is primarily used for Android development?

  • A Swift
  • B Kotlin
  • C Ruby
  • D PHP
Permalink
Correct Answer: Option B — Kotlin
Explanation: Kotlin is Google's preferred language for Android app development because of its modern syntax and safety features.
Submitted by: PaperMCQs
49
Medium fpsc nts

What is the purpose of a checksum?

  • A Compress data
  • B Verify data integrity
  • C Increase speed
  • D Encrypt files
Permalink
Correct Answer: Option B — Verify data integrity
Explanation: A checksum helps detect accidental changes in data during storage or transmission by comparing calculated values before and after transfer.
Submitted by: PaperMCQs
50
Medium css fpsc

Which protocol is used to securely transfer files over SSH?

  • A FTP
  • B TFTP
  • C SFTP
  • D SMTP
Permalink
Correct Answer: Option C — SFTP
Explanation: SFTP operates over SSH and provides encrypted file transfer capabilities, making it more secure than traditional FTP for transmitting sensitive data.
Submitted by: PaperMCQs
51
Easy ppsc nts

What does GUI stand for?

  • A General User Interface
  • B Graphical User Interface
  • C Graphic Utility Integration
  • D Global User Internet
Permalink
Correct Answer: Option B — Graphical User Interface
Explanation: A Graphical User Interface allows users to interact with computers using windows, icons, menus, and pointers instead of text commands, improving usability and accessibility.
Submitted by: PaperMCQs
52
Medium css fpsc

Which Excel chart is best for showing trends over time?

  • A Pie Chart
  • B Line Chart
  • C Scatter Plot
  • D Radar Chart
Permalink
Correct Answer: Option B — Line Chart
Explanation: Line charts effectively display trends and changes across time periods, making them useful for analysis.
Submitted by: PaperMCQs
53
Easy nts

Which PowerPoint feature allows visual movement effects?

  • A Transitions
  • B Animations
  • C Themes
  • D Layouts
Permalink
Correct Answer: Option B — Animations
Explanation: Animations add movement and emphasis effects to text, images, and objects within slides.
Submitted by: PaperMCQs
54
Medium ppsc nts

What is Freeze Panes used for?

  • A Lock worksheet
  • B Keep rows or columns visible
  • C Protect workbook
  • D Hide formulas
Permalink
Correct Answer: Option B — Keep rows or columns visible
Explanation: Freeze Panes keeps selected rows or columns visible while scrolling through large worksheets.
Submitted by: PaperMCQs
55
Easy nts

Which Excel function returns the highest value in a range?

  • A MIN()
  • B TOP()
  • C MAX()
  • D HIGH()
Permalink
Correct Answer: Option C — MAX()
Explanation: MAX returns the largest numeric value from a specified range of cells.
Submitted by: PaperMCQs
56
Easy nts

What is CSV short for?

  • A Computer Saved Values
  • B Comma Separated Values
  • C Column Stored Variables
  • D Common Spreadsheet View
Permalink
Correct Answer: Option B — Comma Separated Values
Explanation: CSV is a text-based format where values are separated by commas, commonly used for data exchange.
Submitted by: PaperMCQs
57
Easy nts

What does Ctrl+Home do in Excel?

  • A Go to first worksheet
  • B Go to cell A1
  • C Open Home tab
  • D Save workbook
Permalink
Correct Answer: Option B — Go to cell A1
Explanation: Ctrl+Home moves the cursor directly to cell A1, the beginning of the worksheet.
Submitted by: PaperMCQs
58
Medium fpsc ppsc

Which Excel feature applies formatting based on rules?

  • A Themes
  • B Conditional Formatting
  • C AutoFilter
  • D Freeze Panes
Permalink
Correct Answer: Option B — Conditional Formatting
Explanation: Conditional Formatting automatically changes cell appearance when specified conditions are met.
Submitted by: PaperMCQs
59
Medium fpsc nts

Which Access key uniquely identifies each record?

  • A Foreign Key
  • B Primary Key
  • C Composite Key
  • D Candidate Key
Permalink
Correct Answer: Option B — Primary Key
Explanation: A primary key uniquely identifies each record and prevents duplicate entries in a table.
Submitted by: PaperMCQs
60
Medium css pms

What is a macro in MS Office?

  • A Database
  • B Automated task sequence
  • C Chart type
  • D Network protocol
Permalink
Correct Answer: Option B — Automated task sequence
Explanation: A macro automates repetitive tasks by storing commands and actions that can be replayed later.
Submitted by: PaperMCQs
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