Live Education Quiz

1. Which HTML tag is used to display an image on a webpage?

A <image>

B <img>

C <pic>

D <src>

2. What is often the first step in the Data Science Life Cycle?

A Data Acquisition (getting the data).

B Building a website for the data.

C Selling the final results.

D Presenting the conclusion.

3. Which data science step comes just before decision making?

A Data visualization

B Data collection

C Data cleaning

D Data storage

4. 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.

5. Which JavaScript structure can store key-value pairs?

A Array

B Object

C Function

D Loop

6. Which JavaScript operator is used to compare both value and type?

A ==

B =

C ===

D !=

7. Which CSS property controls element positioning?

A float

B position

C display

D align

8. What is the main benefit of data science?

A Increased typing speed

B Better decision making

C More storage usage

D Hardware improvement

9. Which stage involves interpreting results?

A Data collection

B Data cleaning

C Data analysis

D Data storage

10. 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.

11. 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

12. Which stage comes after data collection?

A Data cleaning

B Data visualization

C Deployment

D Decision making

13. Which CSS property is used to change the background color of an element?

A color

B bgcolor

C background-color

D background-style

14. Which CSS property is used to add space inside an element?

A margin

B padding

C border

D spacing

15. What is Data Science mainly about?

A Getting knowledge and insights from data.

B Creating computer hardware.

C Designing websites.

D Writing computer programs only.

16. Which JavaScript method converts text to a number?

A Number()

B String()

C parseText()

D toString()

17. Which stage of the Data Science Life Cycle involves presenting the findings to others?

A Data Acquisition.

B Data Preparation.

C Model Building.

D Communication.

18. Why is data cleaning necessary?

A To add errors

B To improve data quality

C To increase file size

D To slow processing

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

A shift()

B pop()

C push()

D join()

20. What will the `console.log(typeof "Hello")` command show in the JavaScript console?

A number

B boolean

C object

D string

21. Which step converts raw data into useful information?

A Data cleaning

B Data analysis

C Data storage

D Data collection

22. Which skill is essential for a data scientist?

A Drawing skills

B Statistical analysis

C Hardware repair

D Typing speed

23. 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

24. Which sorting algorithm repeatedly swaps adjacent elements?

A Selection sort

B Insertion sort

C Bubble sort

D Merge sort

25. What kind of chart uses dots to show data points?

A Bar chart

B Line chart

C Scatter plot

D Pie chart

26. What is meant by data analysis?

A Collecting data

B Storing data

C Examining data to draw conclusions

D Deleting data

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

A Data visualization

B Data collection

C Model deployment

D Data cleaning

28. Which testing ensures the program meets user requirements?

A Unit testing

B Integration testing

C System testing

D Acceptance testing

29. 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

30. The process of cleaning and organizing raw data to make it suitable for analysis is called:

A Data Deletion.

B Data Preparation.

C Data Guessing.

D Data Hiding.

31. Why is data visualization important?

A It increases storage size

B It makes data easier to understand

C It deletes duplicate data

D It hides information

32. Which visualization helps identify relationships between variables?

A Pie chart

B Bar chart

C Scatter plot

D Table

33. Which chart is most suitable for continuous data?

A Line chart

B Pie chart

C Bar chart

D Table

34. What does data collection involve?

A Presenting data in charts

B Gathering raw data from sources

C Deleting data

D Printing reports

35. Which testing method checks individual units of code?

A System testing

B Integration testing

C Unit testing

D Acceptance testing

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

A method

B define

C function

D func

37. Which JavaScript loop runs at least once?

A for

B while

C do-while

D foreach

38. Which JavaScript statement stops a loop?

A stop

B exit

C break

D end

39. 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.

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

A Student marks list

B Final report

C Decision

D Conclusion

Quarter 2

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