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Computer Science MCQs

MCQs on Programming, Networking, Database and OS

46 Questions
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21
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
22
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
23
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
24
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
25
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
26
Medium fpsc ppsc

What is Track Changes used for in Word?

  • A Database management
  • B Reviewing edits
  • C Creating charts
  • D Printing documents
Permalink
Correct Answer: Option B — Reviewing edits
Explanation: Track Changes records modifications made to a document so reviewers can accept or reject them later.
Submitted by: PaperMCQs
27
Medium fpsc ppsc

What is the purpose of Slide Master in PowerPoint?

  • A Print slides
  • B Control overall slide design
  • C Insert videos
  • D Check spelling
Permalink
Correct Answer: Option B — Control overall slide design
Explanation: Slide Master allows users to apply consistent formatting, layouts, and styles across an entire presentation.
Submitted by: PaperMCQs
28
Medium fpsc ppsc

Which feature in Excel is used to summarize large datasets?

  • A Spell Check
  • B Pivot Table
  • C WordArt
  • D AutoFill
Permalink
Correct Answer: Option B — Pivot Table
Explanation: Pivot Tables allow users to summarize, analyze, and organize large amounts of data efficiently.
Submitted by: PaperMCQs
29
Easy ppsc nts

What is a workbook in Microsoft Excel?

  • A A single cell
  • B A chart
  • C A collection of worksheets
  • D A formula
Permalink
Correct Answer: Option C — A collection of worksheets
Explanation: A workbook is an Excel file that can contain one or more worksheets and serves as a container for spreadsheet data.
Submitted by: PaperMCQs
30
Easy ppsc nts

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

  • A Workbook
  • B Worksheet
  • C Cell
  • D Range
Permalink
Correct Answer: Option C — Cell
Explanation: A cell is formed where a row and a column intersect in Excel. Each cell has a unique reference such as A1 or B5.
Submitted by: PaperMCQs
31
Easy ppsc nts

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

  • A Track Changes
  • B Mail Merge
  • C WordArt
  • D AutoCorrect
Permalink
Correct Answer: Option B — Mail Merge
Explanation: Mail Merge allows users to create personalized documents for multiple recipients by combining a main document with a data source. It is commonly used for letters, certificates, labels, and mass mailing operations.
Submitted by: PaperMCQs
32
Easy ppsc nts

What is the default file extension of a Microsoft Word document in modern versions?

  • A .doc
  • B .txt
  • C .docx
  • D .rtf
Permalink
Correct Answer: Option C — .docx
Explanation: Microsoft Word uses the .docx format by default since Office 2007. It is based on Office Open XML standards and supports text, images, formatting, tables, and other document elements while providing better compression and compatibility.
Submitted by: PaperMCQs
33
Medium fpsc ppsc

What is the primary purpose of RAID technology?

  • A Increase screen resolution
  • B Improve storage performance and reliability
  • C Enhance processor speed
  • D Manage network traffic
Permalink
Correct Answer: Option B — Improve storage performance and reliability
Explanation: RAID combines multiple drives to improve performance, fault tolerance, or both.
Submitted by: PaperMCQs
34
Easy ppsc nts

Which search algorithm checks each element sequentially?

  • A Binary Search
  • B Linear Search
  • C Interpolation Search
  • D Hash Search
Permalink
Correct Answer: Option B — Linear Search
Explanation: Linear Search examines items one by one until the target is found or the list ends.
Submitted by: PaperMCQs
35
Easy ppsc nts

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

  • A UPDATE
  • B SELECT
  • C INSERT
  • D ALTER
Permalink
Correct Answer: Option C — INSERT
Explanation: The INSERT statement adds new rows into a database table and is one of the most common SQL operations.
Submitted by: PaperMCQs
36
Easy ppsc nts

Which protocol is used to automatically assign IP addresses to devices on a network?

  • A DNS
  • B DHCP
  • C SMTP
  • D SNMP
Permalink
Correct Answer: Option B — DHCP
Explanation: Dynamic Host Configuration Protocol automatically assigns IP addresses and network configuration information to devices, simplifying network administration.
Submitted by: PaperMCQs
37
Medium fpsc ppsc

Which scheduling algorithm gives each process a fixed time slice?

  • A FCFS
  • B Round Robin
  • C Shortest Job First
  • D Priority Scheduling
Permalink
Correct Answer: Option B — Round Robin
Explanation: Round Robin scheduling assigns a fixed time quantum to each process. If a process does not complete within its allotted time, it is moved to the end of the queue. This approach improves fairness and responsiveness in time-sharing systems.
Submitted by: PaperMCQs
38
Easy ppsc nts

Which database key uniquely identifies each record in a table?

  • A Foreign Key
  • B Candidate Key
  • C Primary Key
  • D Composite Key
Permalink
Correct Answer: Option C — Primary Key
Explanation: A Primary Key uniquely identifies each record in a database table. It cannot contain duplicate values or NULL values and ensures entity integrity within relational database systems.
Submitted by: PaperMCQs
39
Easy ppsc nts

Which SQL command is used to retrieve data from a database?

  • A INSERT
  • B UPDATE
  • C SELECT
  • D DELETE
Permalink
Correct Answer: Option C — SELECT
Explanation: The SELECT statement retrieves data from one or more database tables. It is one of the most frequently used SQL commands and supports filtering, sorting, grouping, and joining data for analysis and reporting.
Submitted by: PaperMCQs
40
Easy fpsc ppsc

Which device is responsible for connecting different networks together?

  • A Switch
  • B Hub
  • C Router
  • D Repeater
Permalink
Correct Answer: Option C — Router
Explanation: A router connects multiple networks and forwards data packets between them based on IP addresses. It determines the most efficient path for data transmission and plays a critical role in Internet communication.
Submitted by: PaperMCQs
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