Live Education Quiz

1. Which JavaScript keyword is used to define a function?

A method

B define

C function

D func

2. What is a set of step-by-step instructions for a computer to solve a problem called?

A An algorithm

B A variable

C A syntax

D A comment

3. In JavaScript, which keyword is used to declare a variable that can be changed later?

A let

B const

C var

D variable

4. 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

5. Which testing ensures the program meets user requirements?

A Unit testing

B Integration testing

C System testing

D Acceptance testing

6. What is the final stage of the data science life cycle?

A Data collection

B Data cleaning

C Decision making or deployment

D Data visualization

7. Which of the following is an example of data?

A Student marks list

B Final report

C Decision

D Conclusion

8. What does data collection involve?

A Presenting data in charts

B Gathering raw data from sources

C Deleting data

D Printing reports

9. Which JavaScript method is used to add a new item to the end of an array?

A shift()

B pop()

C push()

D join()

10. What helps users quickly grasp complex data?

A Raw tables

B Long text

C Data visualization

D Manual calculations

11. Which tool in a web browser helps developers see errors and messages from their JavaScript code?

A The address bar

B The console

C The settings menu

D The history tab

12. Which chart is best for showing parts of a whole, like the percentage of students who like different fruits?

A Line chart

B Scatter plot

C Flowchart

D Pie chart

13. Which skill is essential for a data scientist?

A Drawing skills

B Statistical analysis

C Hardware repair

D Typing speed

14. What does 'data' mean in the context of data science?

A Only pictures and videos.

B A collection of facts, such as numbers, words, or measurements.

C Only the software on a computer.

D The physical parts of a computer like the mouse and keyboard.

15. Why is data cleaning necessary?

A To add errors

B To improve data quality

C To increase file size

D To slow processing

16. A chart that shows data as a circle divided into slices is called a...?

A Line graph.

B Bar chart.

C Pie chart.

D Flowchart.

17. Which software is commonly used for basic data visualization?

A Spreadsheet software

B Operating system

C Antivirus software

D Compiler

18. What is the first stage of the data science life cycle?

A Data visualization

B Data collection

C Model deployment

D Data cleaning

19. Which of these is a common type of chart used for data visualization?

A A text document.

B An audio file.

C A computer program.

D A bar chart.

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

A Networking

B Web development

C Data science

D Cyber security

21. Which HTML tag is used to create a link to another web page?

A <link>

B <img>

C <p>

D <a>

22. Which JavaScript function displays a message box?

A prompt()

B confirm()

C alert()

D message()

23. What is the output of a Boolean expression?

A Number

B String

C True or False

D Character

24. What is data visualization?

A Storing data in files

B Representing data in graphical form

C Deleting unwanted data

D Writing algorithms

25. What is Data Science?

A The art of drawing pictures on a computer.

B The process of building computer hardware.

C The study of data to find useful information and patterns.

D The process of creating animations and games.

26. 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.

27. What type of data is represented using numbers?

A Qualitative data

B Quantitative data

C Text data

D Image data

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

A font-style

B text-weight

C font-weight

D bold

29. Which HTML tag is used to create an unordered list?

A <ol>

B <ul>

C <li>

D <list>

30. Which testing method checks individual units of code?

A System testing

B Integration testing

C Unit testing

D Acceptance testing

31. The process of removing errors and inconsistencies from data is called?

A Data Cleaning.

B Data Collection.

C Data Modeling.

D Data Visualization.

32. Which of the following is the first step in the Data Science Life Cycle?

A Building a model.

B Collecting data.

C Visualizing data.

D Cleaning data.

33. Which algorithm compares each element with all others?

A Binary search

B Linear search

C Quick sort

D Merge sort

34. What is meant by data analysis?

A Collecting data

B Storing data

C Examining data to draw conclusions

D Deleting data

35. Which chart shows parts of a whole?

A Line chart

B Bar chart

C Pie chart

D Scatter plot

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. 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

38. Which algorithm is best for large sorted data?

A Linear search

B Binary search

C Bubble sort

D Insertion sort

39. Which JavaScript method converts text to a number?

A Number()

B String()

C parseText()

D toString()

40. Which tool in a web browser is most commonly used by developers to find and fix errors in JavaScript code?

A The browser's console

B The history tab

C The settings menu

D The bookmarks bar

41. Which language is used to define the structure and content of a web page?

A CSS

B JavaScript

C HTML

D Python

42. In HTML5, which tag is used to define a footer for a document or a section?

A <bottom>

B <footer>

C <end>

D <section>

Quarter 2

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