Network Fundamentals: Master the Basics of Computer Networking

Question 1

Which protocol is primarily used for accessing web pages?

Accepted Answer

HTTP

Answer

TCP

Answer

UDP

Answer

IP

Question 2

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

Accepted Answer

To protect against unauthorized access

Answer

To improve network performance

Answer

To connect different networks

Answer

To store user data

Question 3

What is the primary function of a MAC address in a network?

Accepted Answer

To identify a specific device

Answer

To determine the network type

Answer

To assign an IP address

Answer

To encrypt data

Question 4

Which layer in the OSI model is responsible for the physical transmission of data?

Accepted Answer

Physical layer

Answer

Data link layer

Answer

Network layer

Answer

Transport layer

Question 5

What is the key difference between a router and a switch in a network?

Accepted Answer

Routers connect networks, while switches connect devices within a network

Answer

Routers are faster than switches

Answer

Switches are more secure than routers

Answer

There is no difference between routers and switches

Question 6

What is the main purpose of a DNS server?

Accepted Answer

To translate domain names into IP addresses

Answer

To store website content

Answer

To provide network security

Answer

To manage email accounts

Question 7

Which network topology provides a dedicated communication path between each pair of nodes?

Accepted Answer

Mesh

Answer

Bus

Answer

Star

Answer

Ring

Question 8

In the TCP/IP model, which layer is responsible for establishing and maintaining network connections?

Accepted Answer

Transport layer

Answer

Application layer

Answer

Network layer

Answer

Data link layer

Question 9

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

Accepted Answer

To uniquely identify a device on a network

Answer

To route network traffic

Answer

To store user credentials

Answer

To control network access

Question 10

Which network protocol is commonly used for transferring files over a network?

Accepted Answer

FTP

Answer

HTTP

Answer

SMTP

Answer

DNS

Question 11

What is the key difference between Transmission Control Protocol (TCP) and User Datagram Protocol (UDP)?

Accepted Answer

TCP is connection-oriented, while UDP is connectionless.

Answer

UDP is more reliable than TCP.

Answer

TCP is used for real-time applications, while UDP is used for non-real-time applications.

Answer

UDP has higher bandwidth than TCP.

Question 12

Which type of cyberattack involves flooding a target system with excessive requests to disrupt its normal operation?

Accepted Answer

Denial-of-service (DoS) attack

Answer

Man-in-the-middle attack

Answer

Phishing attack

Answer

Malware attack

Question 13

Which layer in the TCP/IP model is responsible for ensuring reliable data transmission by splitting data into packets and handling sequencing?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 14

What is the primary purpose of a MAC address?

Accepted Answer

To uniquely identify a device on a network

Answer

To provide a secure connection

Answer

To assign an IP address

Answer

To route data packets

Question 15

What is the primary role of the Domain Name System (DNS) in a network?

Accepted Answer

To resolve domain names into IP addresses

Answer

To provide a secure connection

Answer

To assign MAC addresses to devices

Answer

To route data packets

Question 16

Which of the following network devices is primarily used to interconnect multiple network segments?

Accepted Answer

Router

Answer

Switch

Answer

Hub

Answer

Firewall

Question 17

Which type of network security attack involves an unauthorized individual intercepting and altering data in transit between two parties?

Accepted Answer

Man-in-the-middle attack

Answer

Malware

Answer

Phishing

Answer

Spoofing

Question 18

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

Accepted Answer

To prevent unauthorized access and protect against malicious traffic

Answer

To detect and remove viruses and malware

Answer

To optimize network performance

Answer

To provide a secure connection

Question 19

What is the primary purpose of a network protocol?

Accepted Answer

To define the rules and procedures for communication between network devices

Answer

To protect data from unauthorized access

Answer

To manage network traffic flow

Answer

To provide a user interface for network access

Question 20

What is the main function of a subnet mask?

Accepted Answer

To divide a network into smaller subnetworks

Answer

To identify the network address of a device

Answer

To determine the host address of a device

Answer

To route traffic between different networks

Question 21

What is the primary function of a firewall?

Accepted Answer

To prevent unauthorized access to a network

Answer

To detect and block malicious traffic

Answer

To monitor and control network traffic

Answer

To provide encryption for data transmission

Question 22

Which of the following services is provided by the Domain Name System (DNS)?

Accepted Answer

Resolving domain names to IP addresses

Answer

Providing email services

Answer

Hosting websites

Answer

Protecting networks from security threats

Question 23

What is the primary responsibility of a network operating system?

Accepted Answer

To manage and control the resources of a network

Answer

To provide a graphical user interface for network access

Answer

To protect networks from security threats

Answer

To connect devices to a network

Question 24

Which network topology connects all devices in a ring, with each device connected to exactly two others?

Accepted Answer

Ring topology

Answer

Bus topology

Answer

Star topology

Answer

Mesh topology

Question 25

Which protocol is used for transmitting web pages over the Internet?

Accepted Answer

HTTP

Answer

TCP

Answer

UDP

Answer

DNS

Question 26

Which of the following is a common method used to protect networks from unauthorized access?

Accepted Answer

Encryption

Answer

Malware

Answer

Phishing

Answer

DoS attacks

Question 27

What is the primary function of a network switch?

Accepted Answer

To connect multiple devices on a network

Answer

To block unauthorized access to a network

Answer

To detect and respond to network attacks

Answer

To provide secure remote access

Question 28

What is the main difference between IPv4 and IPv6?

Accepted Answer

IPv4 uses 32-bit addresses while IPv6 uses 128-bit addresses

Answer

IPv4 is connectionless while IPv6 is connection-oriented

Answer

IPv4 is used for public networks while IPv6 is used for private networks

Answer

IPv4 is faster than IPv6

Question 29

What is the purpose of a network interface card (NIC)?

Accepted Answer

To connect a device to a network

Answer

To route traffic across a network

Answer

To provide security for a network

Answer

To translate domain names to IP addresses

Question 30

In the TCP/IP model, which layer is responsible for end-to-end data transfer?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 31

Which network topology connects all devices directly to a central device?

Accepted Answer

Star

Answer

Ring

Answer

Bus

Answer

Mesh

Question 32

What is the primary function of the Domain Name System (DNS)?

Accepted Answer

Translating domain names to IP addresses

Answer

Translating IP addresses to domain names

Answer

Providing email services

Answer

Maintaining the internet infrastructure

Question 33

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

Accepted Answer

Forwarding data packets based on their destination IP addresses

Answer

Translating domain names to IP addresses

Answer

Providing wireless connectivity to devices

Answer

Storing and managing network data

Question 34

Which organization is responsible for developing and maintaining internet standards?

Accepted Answer

Internet Engineering Task Force (IETF)

Answer

World Wide Web Consortium (W3C)

Answer

International Telecommunication Union (ITU)

Answer

Institute of Electrical and Electronics Engineers (IEEE)

Question 35

Which network topology resembles a star, where all devices are connected to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Question 36

Which of the following security measures involves encrypting data to prevent unauthorized access?

Accepted Answer

Encryption

Answer

Antivirus software

Answer

Intrusion Detection System (IDS)

Answer

Firewall

Question 37

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

Accepted Answer

To uniquely identify a device connected to a network

Answer

To assign IP addresses

Answer

To establish secure connections

Answer

To store user data

Question 38

What is the approximate speed of a typical 100Base-T Ethernet connection?

Accepted Answer

100 Megabits per second (Mbps)

Answer

10 Gigabits per second (Gbps)

Answer

10 Megabits per second (Mbps)

Answer

1 Gigabit per second (Gbps)

Question 39

Which wireless network standard is capable of supporting data rates of up to 600 Mbps?

Accepted Answer

802.11n

Answer

802.11g

Answer

802.11a

Question 40

What distinguishes TCP (Transmission Control Protocol) from UDP (User Datagram Protocol)?

Accepted Answer

TCP is connection-oriented, while UDP is connectionless

Answer

UDP offers greater security than TCP

Answer

TCP operates faster than UDP

Question 41

Which network model categorizes network functions into distinct layers?

Accepted Answer

OSI (Open Systems Interconnection) Model

Answer

Ethernet Model

Answer

X.25 Model

Answer

TCP/IP Model

Question 42

What is the primary responsibility of a DHCP (Dynamic Host Configuration Protocol) server on a network?

Accepted Answer

To assign IP addresses to devices connected to the network

Answer

To monitor and block network traffic

Answer

To safeguard the network from security threats

Answer

To provide DNS (Domain Name System) services