Live Education Quiz

1

Which chart is most suitable for continuous data?

A

Line chart

B

Pie chart

C

Bar chart

D

Table

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 debugging technique involves checking output step by step?

A

Dry run

B

Tracing

C

Testing

D

Compilation

4

Which step converts raw data into useful information?

A

Data cleaning

B

Data analysis

C

Data storage

D

Data collection

5

What is a named block of code in JavaScript that performs a specific task and can be called multiple times?

A

A function

B

A loop

C

An array

D

A condition

6

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

7

Which of the following best defines data?

A

Processed information

B

Unorganized facts and figures

C

Final reports

D

Computer programs

8

Which chart shows parts of a whole?

A

Line chart

B

Bar chart

C

Pie chart

D

Scatter plot

9

What is the purpose of decision making in data science?

A

To collect more data

B

To take actions based on insights

C

To clean data

D

To visualize data

10

Which JavaScript feature allows code reuse?

A

Variable

B

Loop

C

Function

D

Condition

11

Which data science step comes just before decision making?

A

Data visualization

B

Data collection

C

Data cleaning

D

Data storage

12

What is meant by data analysis?

A

Collecting data

B

Storing data

C

Examining data to draw conclusions

D

Deleting data

13

What is the main purpose of CSS (Cascading Style Sheets)?

A

To add interactivity to a website.

B

To store data for a website.

C

To create the structure of a website.

D

To control the visual style and layout of a website.

14

Which HTML tag is used to collect user input?

A

<form>

B

<input>

C

D

15

Which of the following is a data visualization tool?

A

Spreadsheet charts

B

Compiler

C

Antivirus

D

Text editor

16

Which JavaScript method converts text to a number?

A

Number()

B

String()

C

parseText()

D

toString()

17

Why is data cleaning necessary?

A

To add errors

B

To improve data quality

C

To increase file size

D

To slow processing

18

What does a bar chart display?

A

Trends over time

B

Categories and values

C

Geographic data

D

Random data

19

What is the main purpose of an algorithm?

A

Store data

B

Design webpages

C

Solve a problem step by step

D

Write HTML code

20

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.

21

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

22

Which JavaScript structure can store key-value pairs?

A

Array

B

Object

C

Function

D

Loop

23

What is raw data?

A

Processed information

B

Final results

C

Unprocessed facts

D

Graphs and charts

24

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

A

shift()

B

pop()

C

push()

D

join()

25

Which stage involves interpreting results?

A

Data collection

B

Data cleaning

C

Data analysis

D

Data storage

26

Which CSS property controls the size of text?

A

text-size

B

font-weight

C

font-size

D

text-style

27

Which error occurs due to wrong logic in a program?

A

Syntax error

B

Runtime error

C

Logical error

D

System error

28

Which algorithm compares each element with all others?

A

Binary search

B

Linear search

C

Quick sort

D

Merge sort

29

Which loop is used when the number of iterations is known?

A

while

B

do-while

C

for

D

foreach

30

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

A

Data visualization

B

Data collection

C

Model deployment

D

Data cleaning

31

Which JavaScript function displays a message box?

A

prompt()

B

confirm()

C

alert()

D

message()

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 JavaScript statement is used for decision making?

A

switch

B

if

C

else

D

All of these

34

Which of the following is not a stage of data science life cycle?

A

Data collection

B

Data cleaning

C

Hardware installation

D

Data analysis

35

What is the process of finding and fixing errors in a computer program called?

A

Compiling

B

Executing

C

Debugging

D

Designing

36

Which field combines statistics, programming, and domain knowledge?

A

Networking

B

Web development

C

Data science

D

Cyber security

37

Which CSS property is used to align text?

A

align

B

text-align

C

font-align

D

position

38

What helps users quickly grasp complex data?

A

Raw tables

B

Long text

C

Data visualization

D

Manual calculations

39

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.

40

What type of data is represented using numbers?

A

Qualitative data

B

Quantitative data

C

Text data

D

Image data

41

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

A

CSS

B

JavaScript

C

HTML

D

Python

42

Which sorting algorithm repeatedly swaps adjacent elements?

A

Selection sort

B

Insertion sort

C

Bubble sort

D

Merge sort

🎉 Practice Complete!