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2026-4-1_107 Α ΕΠΑΛ ΕΦΑΡ ΕΚεφ7, 9.3, 10, 11, 13, 14.2,

Total questions: 107

Worksheet time: 54mins

Name
Class
Date
1.

What is a computer network?

a)

A single computer

b)

A software program

c)

A set of interconnected computers

d)

A single file

2.

Which device is used to connect computers in a LAN?

a)

Printer

b)

Monitor

c)

Switch

d)

Scanner

3.

What does LAN stand for?

a)

Global network

b)

Local area network

c)

Wireless network

d)

Personal network

4.

Which topology is most commonly used in school computer labs?

a)

Ring

b)

Star

c)

Mesh

d)

Bus/linear

5.

When was the Internet (ARPANET) created?

a)

1950

b)

1969

c)

1980

d)

2000

6.

Which service belongs to the Internet?

a)

Email

b)

USB

c)

HDMI

d)

Bluetooth

7.

The WWW is:

a)

A program

b)

A computer

c)

An Internet service

d)

An operating system

8.

HTML is:

a)

A programming language

b)

A markup language

c)

A database

d)

A computer virus

9.

The

tag is used for:

a)

A title

b)

An image

c)

A paragraph

d)

A hyperlink

10.

HTML defines:

a)

The structure of a webpage

b)

Internet speed

c)

Computer viruses

d)

Security

11.

What is e-learning?

a)

Learning without a teacher

b)

Learning only with books

c)

Learning via the Internet

d)

Learning only in the classroom

12.

Synchronous learning means:

a)

Anytime learning

b)

In real time

c)

Without the Internet

d)

With books

13.

An example of asynchronous learning is:

a)

Teleconference

b)

Live lesson

c)

e-class

d)

Phone call

14.

What is the cloud?

a)

Local storage

b)

Storage on the Internet

c)

A USB device

d)

A CD

15.

Which is an example of a cloud service?

a)

Paint

b)

WordPad

c)

Google Drive

d)

Notepad

16.

To operate, the cloud requires:

a)

A printer

b)

The Internet

c)

A scanner

d)

A VGA cable

17.

What is malware?

a)

Antivirus

b)

Malicious software

c)

Office software

d)

Operating system

18.

Ransomware:

a)

Removes viruses

b)

Locks files

c)

Protects data

d)

Increases speed

19.

Which program protects against viruses?

a)

Paint

b)

Web browser

c)

Antivirus

d)

Word

20.

Software piracy means:

a)

Updating

b)

Illegal copying

c)

Free use

d)

Installation

21.

Fake news are:

a)

True news

b)

False news

c)

Educational news

d)

Official news

22.

Why do we check our sources?

a)

For gaming

b)

For credibility

c)

For entertainment

d)

For speed

23.

Which of the following is personal data?

a)

A person’s name

b)

The weather

c)

The time

d)

The temperature

24.

Why do we protect our data?

a)

For fashion

b)

For privacy

c)

For speed

d)

For gaming

25.

A strong password includes:

a)

Only a name

b)

Only numbers

c)

A combination of characters

d)

Only a date

26.

Wi‑Fi is:

a)

A wired network cable

b)

A wireless networking technology

c)

A file compression method

d)

Antivirus software

27.

Email is:

a)

A game

b)

An Internet service

c)

A printer

d)

A virus

28.

A browser is:

a)

Chrome

b)

Word

c)

Excel

d)

Paint

29.

Social media is:

a)

Facebook

b)

Word

c)

Excel

d)

BIOS

30.

Teleconference means:

a)

Audio only

b)

Text only

c)

Image and audio

d)

Printing

31.

A firewall protects from:

a)

Electric current

b)

Fire

c)

Network attacks

d)

Dust

32.

Instagram is:

a)

Antivirus

b)

A social network

c)

A game

d)

An operating system

33.

YouTube provides:

a)

Texts

b)

Videos

c)

Printouts

d)

Word files

34.

The WWW consists of:

a)

Web pages

b)

Cables

c)

Printers

d)

Screens

35.

Data in the cloud are:

a)

Local

b)

On a USB drive

c)

On the Internet

d)

On a CD

36.

Phishing is:

a)

Antivirus

b)

Fraud

c)

A game

d)

Printing

37.

Moodle is:

a)

A game

b)

An educational platform

c)

A virus

d)

A browser

38.

Wikipedia is:

a)

Social media

b)

An encyclopedia

c)

Antivirus

d)

A game

39.

The Internet is:

a)

A program

b)

A global network

c)

A printer

d)

A computer

40.

Privacy protection concerns:

a)

Our personal data

b)

The weather

c)

Games

d)

Devices

41.

The cloud allows:

a)

File synchronization

b)

Data loss

c)

Local-only use

d)

No access

42.

Evaluating information helps with:

a)

Misinformation

b)

Reliability

c)

Confusion

d)

Piracy

43.

Personal data are:

a)

Photos

b)

Email

c)

Passwords

d)

All of the above

44.

E-class is:

a)

A game

b)

An educational platform

c)

A virus

d)

An operating system

45.

A USB is:

a)

An Internet service

b)

A storage medium

c)

A virus

d)

A network

46.

A strong password does NOT include:

a)

Symbols

b)

Numbers

c)

Only a name

d)

Uppercase letters

47.

Antivirus is:

a)

A game

b)

A protection program

c)

A social network

d)

An educational platform

48.

Bluetooth is:

a)

A cable

b)

A wireless connection

c)

A virus

d)

A printer

49.

Privacy concerns:

a)

Entertainment

b)

Personal information

c)

Games

d)

The weather

50.

Internet safety requires:

a)

Indifference

b)

Attention

c)

Risk

d)

Speed

51.

What does VPN stand for?

a)

Virtual Private Network

b)

Variable Protocol Network

c)

Virtual Protected Network

d)

Visual Public Network

52.

Which of the following is a type of phishing?

a)

Spamming

b)

Clouding

c)

Hacking

d)

Smishing

53.

What is the purpose of a router?

a)

To connect multiple networks

b)

To store data

c)

To create documents

d)

To print files

54.

What is a firewall?

a)

A type of computer virus

b)

A hardware component for printing

c)

A security system that monitors and controls incoming and outgoing network traffic

d)

A software for editing images

55.

Which of the following is a benefit of cloud computing?

a)

Increased storage capacity

b)

Limited accessibility

c)

Slower performance

d)

Higher costs

56.

What does the term 'malware' refer to?

a)

Software for browsing the internet

b)

Software designed to protect against viruses

c)

Software intended to harm or exploit any programmable device

d)

Software for creating documents

57.

What is the primary function of a firewall?

a)

To block unauthorized access

b)

To speed up the internet

c)

To create websites

d)

To store files

58.

Which of the following is a common type of cyber attack?

a)

Phishing

b)

Downloading

c)

Uploading

d)

Streaming

59.

What does the term 'cloud computing' refer to?

a)

Networking computers in a local area

b)

Using remote servers for data storage and processing

c)

Storing data on local devices

d)

Creating software applications

60.

What is the primary function of a web browser?

a)

To run applications

b)

To store files

c)

To browse the internet

d)

To create documents

61.

Which of the following is a type of cyber attack?

a)

Streaming

b)

Uploading

c)

Phishing

d)

Downloading

62.

What does 'HTTPS' stand for?

a)

Hypertext Transfer Protocol Secure

b)

Hypertext Transfer Protocol Service

c)

Hyperlink Text Transfer Protocol Secure

d)

Hypertext Transfer Protocol Standard

63.

What is the main purpose of a VPN?

a)

To secure internet connections

b)

To increase internet speed

c)

To download files faster

d)

To block ads

64.

Which of the following is a type of phishing attack?

a)

Smishing

b)

Streaming

c)

Downloading

d)

Uploading

65.

What does the term 'IoT' stand for?

a)

Internet of Things

b)

Internal Operating Technology

c)

Internet of Technology

d)

Integrated Online Tools

66.

What is the main function of an antivirus software?

a)

To protect against malware

b)

To create documents

c)

To connect to the Internet

d)

To enhance graphics

67.

Which of the following is a type of phishing attack?

a)

Malware installation

b)

Email spoofing

c)

Data encryption

d)

Network monitoring

68.

What does HTTP stand for?

a)

HyperText Transfer Protocol

b)

HyperText Transmission Protocol

c)

HighText Transmission Protocol

d)

HighText Transfer Protocol

69.

What does 'URL' stand for?

a)

Uniform Resource Locator

b)

Universal Resource Link

c)

Universal Resource Locator

d)

Uniform Resource Link

70.

Which of the following is a common web browser?

a)

Microsoft Word

b)

Google Chrome

c)

Adobe Photoshop

d)

Windows Media Player

71.

What is the primary function of a firewall?

a)

To enhance internet speed

b)

To protect networks from unauthorized access

c)

To create backups

d)

To store data

72.

What is the primary benefit of using cloud storage?

a)

Limited storage

b)

Accessibility from anywhere

c)

Slower access

d)

Higher costs

73.

Which of the following is a feature of online learning platforms?

a)

Physical textbooks

b)

Limited resources

c)

Interactive content

d)

In-person classes

74.

What does 'VPN' stand for?

a)

Virtual Private Network

b)

Virtual Protected Network

c)

Virtual Public Network

d)

Variable Private Network

75.

What does 'URL' stand for?

a)

Uniform Resource Locator

b)

Universal Resource Link

c)

Uniform Resource Link

d)

Universal Resource Locator

76.

Which of the following is a type of malware?

a)

Trojan

b)

Router

c)

Browser

d)

Firewall

77.

What is the main purpose of encryption?

a)

To protect data privacy

b)

To speed up data transfer

c)

To create backups

d)

To improve graphics

78.

What does 'ISP' stand for?

a)

International Service Provider

b)

Internal Service Provider

c)

Internet Security Protocol

d)

Internet Service Provider

79.

Which of the following is a common use of a VPN?

a)

To play games

b)

To edit photos

c)

To create spreadsheets

d)

To stream videos

80.

What is the main purpose of encryption?

a)

To enhance graphics quality

b)

To protect data privacy

c)

To speed up data transfer

d)

To increase storage capacity

81.

What is the purpose of a VPN?

a)

To enhance internet speed

b)

To secure internet connections

c)

To store data

d)

To create websites

82.

Which of the following is a type of phishing attack?

a)

Cloud storage

b)

File sharing

c)

Data entry

d)

Email phishing

83.

What does 'IoT' stand for?

a)

Internet of Things

b)

Integrated Online Tools

c)

Internal Operating Technology

d)

Internet of Technology

84.

What is the primary purpose of a VPN?

a)

To secure internet connections

b)

To increase internet speed

c)

To connect to printers

d)

To download files faster

85.

Which of the following is a type of phishing attack?

a)

Downloading

b)

Smishing

c)

Uploading

d)

Streaming

86.

What does 'HTTPS' stand for?

a)

HyperText Transfer Protocol Secure

b)

HyperText Transmission Protocol Secure

c)

High Transfer Text Protocol Secure

d)

Hyper Transfer Text Protocol Secure

87.

What is the primary purpose of a router?

a)

To create websites

b)

To connect multiple networks

c)

To store data

d)

To enhance graphics

88.

Which of the following is a common type of cyber attack?

a)

File compression

b)

Denial of Service (DoS)

c)

Data entry

d)

Data backup

89.

What does 'VPN' stand for?

a)

Virtual Private Network

b)

Virtual Public Network

c)

Variable Private Network

d)

Virtual Protected Network

90.

What does 'DDoS' stand for?

a)

Distributed Data Service

b)

Dynamic Denial of Service

c)

Direct Denial of Service

d)

Distributed Denial of Service

91.

Which of the following is a common method of data backup?

a)

Cloud storage

b)

Data streaming

c)

File sharing

d)

Physical destruction

92.

What is the purpose of two-factor authentication?

a)

To enhance security

b)

To speed up login

c)

To create backups

d)

To improve graphics

93.

What is the main function of a firewall?

a)

To create websites

b)

To store data

c)

To enhance graphics

d)

To block unauthorized access

94.

Which of the following is a common type of malware?

a)

Trojan

b)

Uploading

c)

Streaming

d)

Downloading

95.

What does 'HTTP' stand for?

a)

Hypertext Transfer Protocol

b)

Hyperlink Text Protocol

c)

High Transfer Text Protocol

d)

Hypertext Transmission Protocol

96.

What is the primary benefit of using two-factor authentication?

a)

Improved graphics

b)

Reduced data storage

c)

Faster login

d)

Increased security

97.

What does 'IoT' stand for?

a)

Internet of Technology

b)

Internal Operating Technology

c)

Internet of Things

d)

Integrated Online Tools

98.

Which of the following is a type of web browser?

a)

Word

b)

Excel

c)

Photoshop

d)

Chrome

99.

What does 'URL' stand for?

a)

Uniform Resource Locator

b)

Universal Resource Link

c)

Uniform Resource Link

d)

Universal Resource Locator

100.

What is the purpose of a URL?

a)

To identify a resource on the Internet

b)

To send emails

c)

To create documents

d)

To display images

101.

Which of the following is a type of web hosting?

a)

Local hosting

b)

Shared hosting

c)

Offline hosting

d)

Direct hosting

102.

What is the function of a firewall?

a)

To block unauthorized access

b)

To enhance internet speed

c)

To create websites

d)

To store data

103.

Which of the following is a type of computer network?

a)

LAN

b)

USB

c)

RAM

d)

CPU

104.

What does 'malware' refer to?

a)

Web browser

b)

Network protocol

c)

Hardware

d)

Malicious software

105.

What is the primary purpose of a VPN?

a)

To create websites

b)

To enhance online privacy

c)

To increase internet speed

d)

To store files

106.

Which of the following is a common type of online learning?

a)

Field trips

b)

Webinars

c)

Textbooks

d)

Workshops

107.

What is the main function of antivirus software?

a)

To create backups

b)

To edit videos

c)

To protect against malware

d)

To speed up the computer

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