Live Education Quiz

1. Which sorting algorithm repeatedly swaps adjacent elements?

A Selection sort

B Insertion sort

C Bubble sort

D Merge sort

2. Which component manages computer hardware?

A Application software

B Utility software

C Operating system

D Compiler

3. Which JavaScript statement stops a loop?

A stop

B exit

C break

D end

4. Which concept improves program readability?

A Errors

B Modular design

C Counting

D Randomization

5. How many bits make one byte?

A 4

B 6

C 8

D 16

6. Which principle helps in solving basic counting problems?

A Logical fallacy

B Counting principle

C Flowchart principle

D Debugging principle

7. What type of data is represented using numbers?

A Qualitative data

B Quantitative data

C Text data

D Image data

8. In which stage of the data science life cycle are models built to find patterns?

A Data Analysis

B Data Collection

C Problem Definition

D Data Deletion

9. Which stage comes after data collection?

A Data cleaning

B Data visualization

C Deployment

D Decision making

10. Which is the final step of problem solving?

A Understanding

B Designing

C Testing and evaluation

D Abstraction

11. Which number system is easiest for humans?

A Binary

B Octal

C Decimal

D Hexadecimal

12. Which field combines statistics, programming, and domain knowledge?

A Networking

B Web development

C Data science

D Cyber security

13. Machine language is written in?

A English

B Symbols

C Binary

D Decimal

14. Which letters are used in hexadecimal system?

A A to F

B A to Z

C B to G

D F to Z

15. What is the main role of a data scientist?

A To repair computer hardware.

B To design computer motherboards.

C To analyze data and find useful insights.

D To manage the school's computer lab.

16. Which characteristic of an algorithm means it must stop after a certain number of steps?

A Input

B Output

C Finiteness

D Effectiveness

17. Which chart shows parts of a whole?

A Line chart

B Bar chart

C Pie chart

D Scatter plot

18. What is the smallest unit of data that a computer can process and store?

A Byte

B Kilobyte

C Megabyte

D Bit

19. In programming, a set of step-by-step instructions to solve a problem is called a/an:

A Variable

B Function

C Comment

D Algorithm

20. Which skill is essential for a data scientist?

A Drawing skills

B Statistical analysis

C Hardware repair

D Typing speed

21. Which number system uses digits from 0 to 7?

A Binary

B Decimal

C Octal

D Hexadecimal

22. Which of the following is NOT a step in algorithm design?

A Understanding problem

B Designing solution

C Executing hardware

D Testing

23. What is the main purpose of Data Visualization?

A To store data in a database.

B To make the computer run faster.

C To represent data graphically for easy understanding.

D To write complex algorithms.

24. Breaking down a large problem into smaller, more manageable sub-problems is known as what?

A Abstraction

B Generalization

C Modular Design

D Dry Run

25. Which JavaScript method is used to find the length of an array?

A size()

B count()

C length

D total()

26. What is the first and most important step in solving a computational problem?

A Writing the code

B Testing the algorithm

C Designing the algorithm

D Understanding and defining the problem

27. What is an algorithm dry run?

A Writing an algorithm

B Executing algorithm step by step manually

C Deleting algorithm

D Compiling code

28. Which software helps maintain system performance?

A Application software

B Utility software

C Operating system

D Compiler

29. What is the name of the process where you manually test an algorithm with sample data to check its logic?

A Abstraction

B Modular Design

C Generalization

D Dry Run

30. Which CSS property is used to align text?

A align

B text-align

C font-align

D position

31. Which CSS property is used to make text bold?

A font-style

B text-weight

C font-weight

D bold

32. In JavaScript, what is used to make decisions and execute different code based on a condition?

A A loop

B A function

C A variable

D An if-else statement

33. Which JavaScript loop runs at least once?

A for

B while

C do-while

D foreach

34. Binary number system is based on which digits?

A 0 and 9

B 1 and 2

C 0 and 1

D 2 and 3

35. What is an error in the code's grammar or spelling called?

A Runtime error

B Logical error

C Syntax error

D User error

36. Which of the following is a common way to visually represent data?

A Writing a long paragraph.

B Creating a bar chart.

C Recording an audio file.

D Sending a text message.

37. Which HTML tag is used to create a hyperlink?

A <link>

B <a>

C <href>

D <url>

38. Which CSS property controls the size of text?

A text-size

B font-weight

C font-size

D text-style

39. Which type of software is Windows?

A Application software

B Utility software

C System software

D Firmware

40. Abstraction in computing means:

A Adding extra details

B Removing unnecessary details

C Writing code

D Testing software

41. Counting problems are mainly used to:

A Store data

B Calculate the number of possible outcomes

C Design hardware

D Write algorithms

42. Which HTML tag is used to create a table row?

A <td>

B <th>

C <tr>

D <table>

Half Book 1

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