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Punjab (PTB) · Quarter book test · Free

9th Class Computer 2nd Quarter Book Paper

40 marks · 1 hour · 28 questions. Covers: CHAP 4: COMPUTATIONAL THINKING, CHAP 5: WEB DEVELOPMENT WITH HTML, CSS AND JAVASCRIPT, CHAP 6: DATA SCIENCE AND DATA GATHERING.

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9th Class Computer 2nd Quarter Book Paper

9th Class · Computer · Punjab (PTB)

Name: ____________Roll No: ________Class/Section: ________Date: ________Total marks: 40Time: 1 hour

Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)

  1. Errors that happen when the algorithm or flowchart is being executed are called:

    1. Syntax Errors

    2. Logical Errors

    3. Runtime Errors

    4. Debugging Errors

  2. What does CSS stand for?

    1. Computer Style System

    2. Cascading Style Sheets

    3. Creative Style System

    4. Colorful Style System

  3. Qualitative data describes:

    1. Quantity

    2. Numbers only

    3. Characteristics

    4. Calculations

  4. Example of Big O notation is:

    1. O(n), O(log n), O(n²)

    2. O+1, O-1, O_2

    3. O(10), O(100), O(1000)

    4. O(T), O(S)

  5. The user sends a request to the web server through ...... to access a webpage:

    1. Text editor

    2. Web browser

    3. Search engine

    4. HTML

  6. Data used to categorize opinions, behaviors, experiences is:

    1. Quantitative

    2. Qualitative

    3. Measurable

    4. Countable

  7. Breaking a problem into smaller, more manageable sub-problems is called:

    1. Problem Understanding

    2. Solution Selection and Design

    3. Problem Simplification

    4. Abstraction

  8. What is the role of databases in back-end development?

    1. Make the website pretty

    2. Store and manage data

    3. Create animations

    4. Improve SEO

  9. Well-organized data helps to reduce:

    1. Storage

    2. Errors

    3. Computers

    4. Internet speed

  10. ........ is a step-by-step collection of instructions to solve a problem or complete a task.

    1. Procedure

    2. Algorithm

    3. Method

    4. Technique

  11. Which of the following is not a heading tag?

  12. Main difference between structured and unstructured data is:

    1. Size only

    2. Format and organization

    3. Color only

    4. Speed only

Q2. Short questions (Attempt any 8 of 12 · 8 × 2 = 16)

  1. Which symbol of flowchart will be used to represent the condition "n<=5"?

  2. What are the two main categories of data?

  3. What is the function of the  tag in HTML?

  4. Describe logical errors.

  5. Describe what a line graph is used for and provide an example of data that could be displayed using a line graph.

  6. What is the use of the ol tag? Describe it with HTML code.

  7. Why is computational thinking important beyond computer science?

  8. What question does quantitative data answer?

  9. What is Full-stack Development and why is it important?

  10. How does problem understanding help in computational thinking?

  11. Differentiate between bar chart and pie chart.

  12. Name two fundamentals used in front-end development for creating interactive interfaces.

Q3. Long questions (Attempt any 3 of 4 · 3 × 4 = 12)

  1. Describe the basic components of web development.

  2. Describe the principles of computational thinking.

  3. What are data validation and data cleaning? Explain validating completeness, validating accuracy, and techniques used for handling missing data and outliers.

  4. Explain different data types used in JavaScript with examples.