Class 9 Computer Science MCQs: Programming Fundamentals

MCQs (sample)

Showing 25 questions from this chapter. For a full timed test, use “Start online test”.

1. 1. What is the most common stylesheet language used with HTML?

   • Cascading Style Sheets (CSS)
   • Document Style Semantics and Specification Language (DSSSL)
   • Extensible Stylesheet Language (XSL)
   • Hypertext Markup Language (HTML)
   Answer & explanation

   Correct: Cascading Style Sheets (CSS)

   Cascading Style Sheets (CSS) is the most common stylesheet language used with HTML.

2. 2. What does HTML stand for?

   • Hypertext Markup Language
   • Hightext Markup Language
   • Hyperlink Markup Language
   • Hypertext Markup Level
   Answer & explanation

   Correct: Hypertext Markup Language

   HTML stands for Hypertext Markup Language, used for defining and displaying contents on a webpage.

3. 3. What is JavaScript primarily used for?

   • Development of web page scripts
   • Database management
   • Operating system development
   • Network configuration
   Answer & explanation

   Correct: Development of web page scripts

   JavaScript is primarily used for the development of web page scripts, making pages dynamic.

4. 4. What does debugging refer to in programming?

   • Locating an error or bug in the code
   • Running the code without errors
   • Writing new code
   • Compiling code to machine language
   Answer & explanation

   Correct: Locating an error or bug in the code

   Debugging specifically involves locating errors or bugs in the code.

5. 5. What is the main purpose of creating a dynamic website for a school?

   • To display results for each student without separate web pages.
   • To ensure that each student has a static webpage.
   • To increase the number of static web pages.
   • To make the website unchangeable.
   Answer & explanation

   Correct: To display results for each student without separate web pages.

   A dynamic website allows for content to change based on user input, eliminating the need for separate static pages for each student.

6. 6. What is the primary language used for basic website development?

   • HTML
   • CSS
   • JavaScript
   • Python
   Answer & explanation

   Correct: HTML

   HTML is the primary language used for basic website development.

7. 7. Before applying CSS styles to a table, which tag should be declared?

   • style
   • table
   • body
   • div
   Answer & explanation

   Correct: style

   The 'style' tag-pair should be declared before applying CSS styles to a table.

8. 8. What character identifies tags in HTML?

   • &
   • #
   • < >
   • /
   Answer & explanation

   Correct: < >

   Tags in HTML are identified by characters between angle brackets '<' and '>'.

9. 9. Where can JavaScript code be placed in an HTML file?

   • Only within the <head> tag
   • Only within the <body> tag
   • Anywhere in the HTML file
   • Only at the beginning of the file
   Answer & explanation

   Correct: Anywhere in the HTML file

   JavaScript code can be embedded anywhere in the HTML file without any limitations.

10. 10. Which menu option in Visual Studio .Net allows you to start debugging?

    • Run Debugging
    • Debug Console
    • Menu Options
    • Compile Code
    Answer & explanation

    Correct: Run Debugging

    To start debugging, you choose 'Run Debugging' from the menu.

11. 11. Which three languages are mentioned as necessary for creating a dynamic website?

    • JavaScript, HTML, CSS
    • Java, Python, HTML
    • HTML, CSS, PHP
    • HTML, CSS, SQL
    Answer & explanation

    Correct: JavaScript, HTML, CSS

    JavaScript, HTML, and CSS are specified as the languages used to create dynamic websites.

12. 12. What is a webpage?

    • A document accessible through the internet
    • A set of web servers
    • A type of web application
    • A search engine result
    Answer & explanation

    Correct: A document accessible through the internet

    A webpage is a document that exists and is accessible through the internet.

13. 13. In the given CSS code, what does 'border: 1px solid black;' define?

    • The color of text
    • The thickness and style of table borders
    • The background color of the table
    • The alignment of the table
    Answer & explanation

    Correct: The thickness and style of table borders

    'border: 1px solid black;' defines the thickness, style, and color of the table borders.

14. 14. What is the purpose of the <p> tag in HTML?

    • To create headings
    • To define paragraphs
    • To include images
    • To create links
    Answer & explanation

    Correct: To define paragraphs

    The <p> tag is used to define paragraphs in HTML.

15. 15. What function is commonly used in JavaScript to notify the user about an action?

    • document.write()
    • alert()
    • prompt()
    • console.log()
    Answer & explanation

    Correct: alert()

    The alert() function is commonly used in JavaScript to inform the user about the result of their action.

16. 16. What happens when you assign a breakpoint in Visual Studio .Net?

    • The code runs faster
    • The execution halts at that line
    • All errors are fixed automatically
    • The code is compiled without running
    Answer & explanation

    Correct: The execution halts at that line

    Assigning a breakpoint causes the execution to halt at that line in debug mode.

17. 17. What does the function 'descOrder()' do in the provided code?

    • Prints index numbers in ascending order.
    • Prints index numbers in descending order.
    • Changes the background color of the webpage.
    • Stops the for-loop execution.
    Answer & explanation

    Correct: Prints index numbers in descending order.

    The function 'descOrder()' is designed to print index numbers in descending order when called.

18. 18. What do you use to access a webpage?

    • Web browser
    • Search engine
    • URL
    • Server
    Answer & explanation

    Correct: Web browser

    A web browser is used to access a webpage.

19. 19. What parameter ensures that controls are available when the video loads?

    • looped
    • autoplay
    • controls
    • muted
    Answer & explanation

    Correct: controls

    The controls parameter enables play/pause and volume controls when the video loads.

20. 20. Which tag is used to create a line break in HTML?

    • <break>
    • <lb>
    • <br>
    • <bl>
    Answer & explanation

    Correct: <br>

    The <br> tag is used in HTML to create a line break between sentences.

21. 21. Which keyword is used to declare a variable in JavaScript?

    • var
    • let
    • const
    • def
    Answer & explanation

    Correct: var

    The 'var' keyword is used to declare a variable in JavaScript.

22. 22. What visual representation indicates a breakpoint in the code?

    • A blue square
    • A red dot
    • A green line
    • A yellow triangle
    Answer & explanation

    Correct: A red dot

    A breakpoint is represented by a red dot at the start of a line.

23. 23. What is the purpose of the button in the code?

    • To reload the webpage.
    • To call the 'descOrder()' function.
    • To change the text color.
    • To display a message.
    Answer & explanation

    Correct: To call the 'descOrder()' function.

    The button is programmed to call the 'descOrder()' function when pressed, allowing the index to be printed in descending order.

24. 24. What is the function of a search engine?

    • To create websites
    • To seek relevant information based on keywords
    • To host webpages
    • To develop web applications
    Answer & explanation

    Correct: To seek relevant information based on keywords

    A search engine seeks relevant information based on the keywords entered.

25. 25. What effect does the 'background-attachment: fixed;' style have?

    • The background image scrolls with the page
    • The background image stays fixed while scrolling
    • The background image is cropped
    • The background image changes color
    Answer & explanation

    Correct: The background image stays fixed while scrolling

    'background-attachment: fixed;' keeps the background image fixed while the content scrolls.