1 $Which of the following best describes a Computer Network?$

A.

A single computer processing data

B.

A collection of computers connected to share resources

C.

A software used to browse the internet

D.

A storage device used for backup

2 $Which network type typically covers a small geographic area like a single room or a building?$

A.

WAN (Wide Area Network)

B.

MAN (Metropolitan Area Network)

C.

LAN (Local Area Network)

D.

VPN (Virtual Private Network)

3 $The Internet is the largest example of which type of network?$

A.

LAN

B.

PAN

C.

WAN

D.

MAN

4 $Which network topology connects all devices to a single central cable called the backbone?$

A.

Star Topology

B.

Bus Topology

C.

Ring Topology

D.

Mesh Topology

5 $In which topology are all computers connected to a central device like a hub or a switch?$

A.

Bus

B.

Ring

C.

Star

D.

Mesh

6 $Which network topology provides the highest level of redundancy and reliability by connecting every device to every other device?$

A.

Star

B.

Tree

C.

Mesh

D.

Bus

7 $What is the primary function of a Router?$

A.

To connect devices within a single LAN

B.

To modulate and demodulate signals

C.

To direct data packets between different networks

D.

To power the computer system

8 $Which device is used to convert digital signals from a computer into analog signals for transmission over telephone lines?$

A.

Switch

B.

Router

C.

Modem

D.

Hub

9 $Which networking device is known as a 'dumb' device because it broadcasts data to all connected ports?$

A.

Router

B.

Switch

C.

Hub

D.

Firewall

10 $How does a Switch differ from a Hub?$

A.

A switch is wireless only

B.

A switch sends data only to the specific destination device

C.

A switch connects different networks like the internet

D.

A switch cannot connect multiple computers

11 $Which device allows wireless devices to connect to a wired network?$

A.

Modem

B.

Access Point (AP)

C.

Network Interface Card (NIC)

D.

Server

12 $In the Client-Server model, what is the role of the 'Client'?$

A.

To store all the data and manage permissions

B.

To request services or resources

C.

To route traffic between networks

D.

To provide security against viruses

13 $Which of the following is a characteristic of a Server?$

A.

It usually has lower processing power than a client

B.

It requests data from other computers

C.

It provides resources and services to clients

D.

It is only used for gaming

14 $What is 'Malware' short for?$

A.

Malfunction Software

B.

Malicious Hardware

C.

Malicious Software

D.

Manual Software

15 $Which type of malware attaches itself to a legitimate program and requires human action to spread?$

A.

Worm

B.

Virus

C.

Adware

D.

Botnet

16 $Which malware is self-replicating and spreads across networks without requiring a host file or user interaction?$

A.

Virus

B.

Trojan Horse

C.

Worm

D.

Spyware

17 $What is a Trojan Horse in the context of computing?$

A.

A hardware device for racing

B.

Malware disguised as legitimate software

C.

A type of antivirus

D.

A fast network cable

18 $Which type of malware encrypts a user's files and demands payment for the decryption key?$

A.

Spyware

B.

Ransomware

C.

Adware

D.

Worm

19 $Software that secretly monitors user activity and collects information without their knowledge is called:$

A.

Spyware

B.

Firewall

C.

Firmware

D.

Freeware

20 $What is Phishing?$

A.

Scanning a hard drive for errors

B.

Connecting to a Wi-Fi network

C.

Sending fraudulent emails to trick users into revealing sensitive info

D.

Installing a firewall

21 $Which attack method involves trying every possible combination of characters to guess a password?$

A.

Phishing

B.

Dictionary Attack

C.

Brute Force Attack

D.

SQL Injection

22 $What does MFA stand for in computer security?$

A.

Multiple File Access

B.

Main Factor Authorization

C.

Multi-Factor Authentication

D.

Master File Allocation

23 $Which of the following is an example of 'Something you are' in Multi-Factor Authentication?$

A.

Password

B.

Smart Card

C.

Fingerprint

D.

PIN code

24 $Which user account type typically has full control over the computer, including installing software and changing settings?$

A.

Guest

B.

Standard User

C.

Administrator

D.

Limited User

25 $What is a primary limitation of a Guest account?$

A.

It has unlimited internet speed

B.

It cannot install software or change system settings

C.

It can access all files on the hard drive

D.

It does not require a monitor

26 $What is a Firewall?$

A.

A physical wall in a server room

B.

A security system that monitors and controls network traffic

C.

A type of virus that burns hardware

D.

A tool to clean computer fans

27 $Which network topology connects devices in a closed loop?$

A.

Bus

B.

Ring

C.

Star

D.

Tree

28 $Which device operates at the Data Link Layer and uses MAC addresses?$

A.

Hub

B.

Switch

C.

Repeater

D.

Cable

29 $Bluetooth is an example of which type of network?$

A.

WAN

B.

LAN

C.

PAN (Personal Area Network)

D.

MAN

30 $In a network, what does the term 'Node' refer to?$

A.

Only the server

B.

The network cable

C.

Any device connected to the network

D.

The speed of the internet

31 $What is the main disadvantage of a Hub compared to a Switch?$

A.

Hubs are more expensive

B.

Hubs generate unnecessary network traffic

C.

Hubs are difficult to install

D.

Hubs require special cables

32 $Which form of malware captures keystrokes to steal passwords?$

A.

Keylogger

B.

Adware

C.

Ransomware

D.

Logic Bomb

33 $What is the 'Dictionary Attack' method of password cracking?$

A.

Guessing based on user's birthday

B.

Using a pre-defined list of common words and passwords

C.

Encrypting the password file

D.

Asking the user for the password

34 $Which account type allows a user to use the computer for daily tasks but prevents accidental system damage?$

A.

Administrator

B.

Standard User

C.

Hacker

D.

Root

35 $What is 'Spear Phishing'?$

A.

Fishing for underwater cables

B.

A phishing attack targeting a specific individual or organization

C.

Sending spam to random people

D.

Hacking a website

36 $Which authentication factor falls under 'Something you have'?$

A.

Password

B.

Retina Scan

C.

Security Token or Smartphone

D.

Voice recognition

37 $Which network topology is a combination of two or more different topologies?$

A.

Star

B.

Bus

C.

Hybrid

D.

Ring

38 $Which device is considered the 'gateway' to the internet for a home network?$

A.

Switch

B.

Router

C.

Hub

D.

Printer

39 $A 'Botnet' is usually created using which type of malware?$

A.

Trojan/Worm

B.

Adware

C.

Spyware

D.

Ransomware

40 $The physical arrangement of devices in a network is known as:$

A.

Network Protocol

B.

Network Architecture

C.

Network Topology

D.

Network Class

41 $Which of the following is NOT a type of computer network?$

A.

LAN

B.

WAN

C.

FAN (Fan Area Network)

D.

MAN

42 $What is the main purpose of a firewall blocking 'Incoming' traffic?$

A.

To stop employees from using Facebook

B.

To prevent unauthorized access from the internet

C.

To speed up the internet

D.

To save electricity

43 $In a Tree Topology, the network is arranged in what kind of structure?$

A.

Circular

B.

Hierarchical

C.

Linear

D.

Random

44 $Which of the following is a strong password practice?$

A.

Using 'password123'

B.

Using the same password for all sites

C.

Using a mix of letters, numbers, and symbols

D.

Writing it on a sticky note on the monitor

45 $Adware is primarily designed to:$

A.

Destroy hardware

B.

Encrypt files

C.

Display unwanted advertisements

D.

Replicate itself to other networks

46 $Which privileges should be granted to a normal employee to ensure security (Principle of Least Privilege)?$

A.

Administrator

B.

Standard User

C.

Guest

D.

Root

47 $A 'man-in-the-middle' attack is a threat where:$

A.

A hacker physically sits between two computers

B.

An attacker intercepts communication between two parties

C.

The server shuts down

D.

A virus deletes the operating system

48 $Which device enables a computer to connect to a telephone line for dial-up internet?$

A.

Router

B.

Modem

C.

Switch

D.

Access Point

49 $What is the best way to protect against data loss from Ransomware?$

A.

Using a strong password

B.

Regular offline backups

C.

Using Incognito mode

D.

Installing a faster processor

50 $In a Star topology, if the central Hub fails, what happens?$

A.

Only one computer fails

B.

The entire network fails

C.

Data finds another path

D.

The computers communicate directly

Unit 5 - Practice Quiz