Live Education Quiz

1

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.

2

Which software translates high-level language?

A

Editor

B

Compiler

C

Operating system

D

Utility

3

How many bits does the standard ASCII code use to represent a single character?

A

7 bits

B

16 bits

C

4 bits

D

32 bits

4

Which software is necessary to run applications?

A

Operating system

B

Utility software

C

Antivirus

D

Editor

5

Which topic focuses on identifying mistakes?

A

Abstraction

B

Errors

C

Counting principles

D

Modular design

6

Which stage comes after data collection?

A

Data cleaning

B

Data visualization

C

Deployment

D

Decision making

7

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

A

CSS

B

JavaScript

C

HTML

D

Python

8

The hexadecimal number system uses 16 symbols, which are 0-9 and:

A

A-G

B

X, Y, Z

C

A-F

D

Special symbols

9

Which coding scheme supports many languages?

A

ASCII

B

BCD

C

Unicode

D

EBCDIC

10

Which CSS property is used to change text color?

A

font-style

B

text-color

C

color

D

background-color

11

Which testing ensures the program meets user requirements?

A

Unit testing

B

Integration testing

C

System testing

D

Acceptance testing

12

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

13

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

A

B

C

<end>

D

14

Software that is free to use and modify is called?

A

Paid software

B

Proprietary software

C

Open-source software

D

Utility software

15

What does a pie chart mainly show?

A

Exact values

B

Parts of a whole

C

Trends

D

Relationships

16

What is the final stage of the data science life cycle where the results are shared with others?

A

Data Acquisition

B

Data Preparation

C

Communication / Visualization

D

Asking a question

17

Which of the following best describes computational thinking?

A

Thinking only about computers

B

Solving problems step by step logically

C

Writing long programs

D

Using calculators only

18

A well-defined, step-by-step procedure to solve a specific problem is called:

A

A flowchart

B

A program

C

An algorithm

D

A dry run

19

A group of 8 bits is commonly known as a:

A

Byte

B

Kilobyte

C

Bit

D

Megabyte

20

Which software removes viruses?

A

Application software

B

Utility software

C

System software

D

Programming software

21

What is the main purpose of Data Visualization?

A

To make data more complicated.

B

To hide the important facts in data.

C

To use as many colors as possible.

D

To help understand trends and patterns easily.

22

Which number system has a base of 2 and uses only the digits 0 and 1?

A

Decimal

B

Binary

C

Hexadecimal

D

Octal

23

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

24

Modular design refers to:

A

Designing a single large program

B

Dividing a problem into smaller modules

C

Ignoring problem parts

D

Hardware design

25

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

26

Which unit is the smallest unit of data in a computer?

A

Byte

B

Bit

C

Nibble

D

Word

27

Which sorting algorithm repeatedly swaps adjacent elements?

A

Selection sort

B

Insertion sort

C

Bubble sort

D

Merge sort

28

Which step verifies correctness of an algorithm?

A

Dry run

B

Abstraction

C

Generalization

D

Modularization

29

What is the main purpose of performing a dry run on an algorithm?

A

To check the algorithm's logic for errors

B

To write the code in a programming language

C

To make the algorithm run faster

D

To hide the complex details

30

The fundamental counting principle is used when:

A

Steps are independent

B

Steps are dependent

C

There is only one step

D

There is no solution

31

Which JavaScript statement is used for decision making?

A

switch

B

if

C

else

D

All of these

32

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

A

number

B

boolean

C

object

D

string

33

Which algorithm gives the best result in minimum steps?

A

Efficient algorithm

B

Long algorithm

C

Simple algorithm

D

Manual algorithm

34

Which of the following is an example of logical reasoning?

A

Guessing

B

Random selection

C

If-then decision making

D

Copying data

35

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

A

Data visualization

B

Data collection

C

Model deployment

D

Data cleaning

36

Main advantage of modular design is:

A

Increased complexity

B

Easy testing and maintenance

C

More errors

D

Longer code

37

Which feature ensures an algorithm ends after a limited number of steps?

A

Input

B

Output

C

Finiteness

D

Generality

38

Data that has been collected but has not been processed or cleaned is called:

A

Final Data

B

Clean Data

C

Useful Data

D

Raw Data

39

Algorithm dry run helps to:

A

Increase speed

B

Find logical errors

C

Decorate code

D

Store data

40

Errors found during dry run are mostly:

A

Syntax errors

B

Logical errors

C

Hardware errors

D

Network errors

41

Which HTML tag is used to create a hyperlink?

A

<link>

B

<a>

C

<href>

D

<url>

42

Which JavaScript construct is used to repeat a block of code a certain number of times?

A

if-else statement

B

for loop

C

function

D

switch statement

🎉 Practice Complete!