Network Fundamentals: Master the Basics of Computer Networking

Question 1

In a network topology where each node is directly connected to every other node, what is the topology known as?

Accepted Answer

Mesh

Answer

Bus

Answer

Star

Answer

Ring

Question 2

When a large network is divided into smaller, more manageable sections, what is this process called?

Accepted Answer

Subnet Division

Answer

Routing

Answer

Switching

Answer

Bridging

Question 3

What is the primary function of a network operating system (NOS)?

Accepted Answer

Managing network devices and resources

Answer

Providing security features

Answer

Facilitating data storage

Answer

Running user applications

Question 4

Which network transmission method involves sending data in short bursts known as frames?

Accepted Answer

Ethernet

Answer

Token Ring

Answer

FDDI

Answer

ATM

Question 5

What is the main purpose of using a Virtual Private Network (VPN)?

Accepted Answer

Establishing a secure and encrypted connection over a public network

Answer

Improving overall network performance

Answer

Reducing network bandwidth consumption

Answer

Ensuring high data reliability

Question 6

Which of the following is NOT a recognized network topology?

Accepted Answer

Parallel

Answer

Bus

Answer

Ring

Answer

Star

Question 7

Which protocol suite is the foundational layer of the Internet?

Accepted Answer

TCP/IP

Answer

UDP/IP

Answer

SMTP/POP

Answer

HTTP/HTTPS

Question 8

Which of the following uniquely identifies a network interface card?

Accepted Answer

MAC address

Answer

IP address

Answer

DNS address

Answer

Gateway address

Question 9

What is the primary purpose of a subnet mask in a network?

Accepted Answer

To define the network and broadcast addresses of a subnet

Answer

To specify the range of IP addresses that can be assigned to devices on a subnet

Answer

To filter incoming network traffic

Answer

To protect against unauthorized access

Question 10

What is the purpose of a MAC address?

Accepted Answer

To identify a specific device on a network

Answer

To determine the IP address of a device

Answer

To route traffic between networks

Answer

To provide secure communication channels

Question 11

What is the primary difference between a router and a switch?

Accepted Answer

Routers connect networks, while switches connect devices within a network

Answer

Routers are used for wired networks, while switches are used for wireless networks

Answer

Switches are more secure than routers

Answer

Switches are more expensive than routers

Question 12

Which layer of the TCP/IP model is responsible for addressing and routing packets through a network?

Accepted Answer

Network Layer

Answer

Physical Layer

Answer

Transport Layer

Answer

Application Layer

Question 13

Which of the following is a primary function of a router in a network?

Accepted Answer

Storing and forwarding data packets based on routing tables

Answer

Transmitting data over a physical medium

Answer

Converting signals from one medium to another

Answer

Providing a user interface for network management

Question 14

Which of the following is a network security threat that involves an attacker intercepting and potentially modifying communication between two parties on a network?

Accepted Answer

Man-in-the-Middle Attack

Answer

Malware

Answer

Phishing

Answer

DDoS Attack

Question 15

Which protocol is fundamental for establishing and sustaining network connections?

Accepted Answer

TCP

Answer

IP

Answer

UDP

Answer

DNS

Question 16

To protect data from unauthorized access, which security measure utilizes encryption?

Accepted Answer

Encryption

Answer

Authentication

Answer

Authorization

Answer

Firewalls

Question 17

Which network device serves as a gateway between multiple networks?

Accepted Answer

Router

Answer

Switch

Answer

Modem

Answer

Firewall

Question 18

Which protocol is used to transfer files across a network?

Accepted Answer

FTP

Answer

HTTP

Answer

SMTP

Answer

SSH

Question 19

To limit access to resources based on user roles and permissions, which security measure is employed?

Accepted Answer

Authorization

Answer

Authentication

Answer

Encryption

Answer

Firewalls

Question 20

Which protocol is used for transferring web pages over the internet?

Accepted Answer

HTTP

Answer

TCP

Answer

UDP

Answer

IP

Question 21

Which of the following is a characteristic of a UDP protocol?

Accepted Answer

Both connectionless and unreliable

Answer

Connectionless

Answer

Unreliable

Answer

Reliable and connection-oriented

Question 22

What is the main purpose of a router?

Accepted Answer

To connect different networks

Answer

To filter network traffic

Answer

To provide internet access

Answer

To store data

Question 23

Which tool provides ongoing network performance data and analysis?

Accepted Answer

SNMP

Answer

Wireshark

Answer

Ping

Answer

Traceroute

Question 24

Which of the following layers does NOT belong in the TCP/IP model?

Accepted Answer

Data Link

Answer

Application

Answer

Transport

Answer

Network

Question 25

Which protocol is responsible for transmitting emails?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

SSH

Question 26

Which of the following is a distinguishing characteristic of wireless networks?

Accepted Answer

Utilizing radio waves or other wireless technologies for data transmission

Answer

Requiring physical cables or wires for network connectivity

Answer

Providing significantly higher bandwidth compared to wired networks

Answer

Offering inherently stronger security measures than wired networks

Question 27

What is the main function of a router in a network?

Accepted Answer

Connecting multiple networks together and facilitating communication between them

Answer

Providing direct access to the internet for devices connected to the network

Answer

Filtering and controlling network traffic based on security policies

Answer

Storing and managing files and data for network users

Question 28

Which type of malware encrypts files on a victim's computer and demands payment in exchange for decrypting them?

Accepted Answer

Ransomware

Answer

Virus

Answer

Trojan

Answer

Worm

Question 29

Which layer of the TCP/IP model is responsible for managing the reliable delivery of data across a network, ensuring that data is sent in order and without errors?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 30

What is the primary purpose of a subnet mask in a network?

Accepted Answer

To divide a larger network into smaller, manageable subnetworks

Answer

To increase the number of available IP addresses within a network

Answer

To enhance network security by restricting access to specific subnets

Answer

To improve network performance by optimizing traffic flow

Question 31

What is the main function of a firewall in a network security system?

Accepted Answer

To monitor and control incoming and outgoing network traffic based on predefined security rules

Answer

To detect and eliminate malicious software from devices connected to the network

Answer

To provide secure, encrypted communication channels for data transmission

Answer

To analyze network traffic patterns to identify potential security breaches

Question 32

Which network protocol is commonly used for securely accessing and managing systems remotely over a network?

Accepted Answer

SSH

Answer

HTTP

Answer

SMTP

Answer

DNS

Question 33

Which type of network device operates at the data link layer of the TCP/IP model, connecting devices within a specific network segment?

Accepted Answer

Switch

Answer

Router

Answer

Modem

Answer

Firewall

Question 34

What is the function of a Domain Name System (DNS) server on a network?

Accepted Answer

To translate human-readable domain names into their corresponding numerical IP addresses, facilitating website access

Answer

To provide email services, allowing users to send and receive electronic mail

Answer

To host websites, making them accessible to users on the internet

Answer

To protect networks from security threats, such as malware and unauthorized access

Question 35

Which of the following network standards defines the specifications for physical layer network connections, including cable types and electrical characteristics?

Accepted Answer

IEEE 802.3

Answer

TCP/IP

Answer

UDP

Answer

HTTP

Question 36

What is the primary purpose of a Media Access Control (MAC) address?

Accepted Answer

To uniquely identify a specific device on a network

Answer

To direct traffic between different networks

Answer

To protect data from unauthorized access

Answer

To store data on a network

Question 37

What is the primary purpose of a network protocol?

Accepted Answer

To establish rules and standards for data communication

Answer

To encrypt data for secure transmission

Answer

To manage the flow and prioritization of network traffic

Answer

To detect and prevent network attacks

Question 38

Which of the following is not a type of cabling commonly used in computer networks?

Accepted Answer

HDMI

Answer

Coaxial

Answer

Fibre optic

Answer

Twisted pair

Question 39

What is the primary function of a firewall in a network security system?

Accepted Answer

To prevent unauthorized access to a network and its resources

Answer

To scan for and remove malware and other malicious software

Answer

To encrypt data transmissions to protect data confidentiality

Answer

To provide wireless connectivity to devices

Question 40

Which network topology involves connecting all devices to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 41

Which layer of the TCP/IP model is responsible for ensuring reliable delivery of data across the network?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 42

Which type of IP address is automatically assigned to devices on a network?

Accepted Answer

Dynamic IP address

Answer

Static IP address

Answer

Private IP address

Answer

Public IP address

Question 43

What is the primary purpose of a MAC address?

Accepted Answer

To uniquely identify a network interface

Answer

To route packets between networks

Answer

To provide a secure connection

Answer

To assign an IP address to a device

Question 44

Which of the following is a potential disadvantage of using a network in an organization?

Accepted Answer

Security risks

Answer

Increased productivity

Answer

Enhanced communication

Answer

Reduced costs

Question 45

What is the primary function of a router in a network?

Accepted Answer

To forward packets between networks

Answer

To connect devices to the network

Answer

To provide security

Answer

To assign IP addresses

Question 46

What is the main purpose of using a firewall in a network?

Accepted Answer

To block unauthorized access

Answer

To encrypt data

Answer

To detect and prevent intrusions

Answer

To route packets

Question 47

Which of the following is NOT a common network topology?

Accepted Answer

Chain

Answer

Bus

Answer

Star

Answer

Ring

Question 48

Which protocol is used to translate domain names into IP addresses?

Accepted Answer

DNS

Answer

TCP

Answer

UDP

Answer

HTTP

Question 49

Which encryption algorithm is commonly used to secure network communication?

Accepted Answer

AES

Answer

MD5

Answer

SHA-1

Answer

SSL

Question 50

What is the primary function of a firewall in a computer network?

Accepted Answer

To prevent unauthorized access to the network

Answer

To monitor network traffic

Answer

To route network packets

Answer

To store network data

Question 51

Which layer of the TCP/IP model is responsible for end-to-end delivery of data?

Accepted Answer

Transport

Answer

Network

Answer

Application

Answer

Link

Question 52

Which of the following is a characteristic of a wireless network?

Accepted Answer

Uses radio waves for communication

Answer

Requires a wired connection to a router

Answer

Has an unlimited range

Answer

Is more secure than a wired network

Question 53

Which of the following is a primary function of a router?

Accepted Answer

Connecting different networks

Answer

Switching traffic between devices on the same network

Answer

Providing network security

Answer

Storing network data