Computer Networks: Explore the World of Connected Devices

Question 1

In the TCP/IP model, which layer handles the physical network media?

Accepted Answer

Data Link

Answer

Application

Answer

Network

Answer

Session

Question 2

Which network topology has all devices connected to a central hub that controls network traffic?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 3

Which of the following is NOT a fundamental type of network topology?

Accepted Answer

Rectangular

Answer

Bus

Answer

Star

Answer

Ring

Question 4

In a computer network, the physical arrangement of devices is known as the network topology. Which of the following is NOT a type of network topology?

Accepted Answer

Daisy chain

Answer

Bus

Answer

Star

Answer

Ring

Question 5

What is the primary purpose of a network protocol?

Accepted Answer

Define the structure of data packets, including their headers and footers.

Answer

Protect data during transmission from unauthorized access.

Answer

Establish and maintain connections between different devices.

Answer

Route data packets efficiently between different networks.

Question 6

Which of the following is NOT a type of network topology?

Accepted Answer

Protocol

Answer

Bus

Answer

Star

Answer

Ring

Question 7

What's the main purpose of a network address?

Accepted Answer

To identify a device's network connection

Answer

To store data temporarily during network communication

Answer

To encrypt network traffic

Answer

To manage data flow on a network

Question 8

What is the primary function of a network firewall?

Accepted Answer

To protect a network from unauthorized access

Answer

To connect devices to a network

Answer

To convert network addresses

Answer

To enable wireless connections

Question 9

Which of these is NOT a common network topology used to connect computers and devices?

Accepted Answer

Linear

Answer

Bus

Answer

Star

Answer

Ring

Question 10

In a star network topology, which of the following is an advantage over other topologies?

Accepted Answer

Easier troubleshooting

Answer

Higher reliability

Answer

Lower cost

Answer

Faster speed

Question 11

In a computer network, what is the primary purpose of a firewall?

Accepted Answer

To protect the network from unauthorized access

Answer

To connect computers within the network

Answer

To enhance the network's overall performance

Answer

To identify and resolve network issues

Question 12

In computer networks, which of these is NOT a recognized network topology?

Accepted Answer

Point-to-Point

Answer

Bus

Answer

Star

Answer

Ring

Question 13

Which of these is NOT a type of network topology?

Accepted Answer

Daisy chain

Answer

Bus

Answer

Star

Answer

Ring

Question 14

Which of these is not a common network topology?

Accepted Answer

Circle

Answer

Bus

Answer

Star

Answer

Mesh

Question 15

In a computer network, which topology involves devices connecting to a central hub or switch?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 16

Which of the following is a disadvantage of using a computer network?

Accepted Answer

Increased susceptibility to data breaches and cyberattacks

Answer

Enhanced communication and collaboration

Answer

Lower expenses for hardware, software, and IT support

Question 17

Which type of network cable offers extremely high bandwidth and minimal signal loss, making it ideal for high-speed data transmission over long distances?

Accepted Answer

Fiber optic cable

Answer

Twisted pair copper cable

Answer

Coaxial cable

Answer

Wireless transmission

Question 18

You're setting up a computer network for your school. Which of these steps would best protect it from hackers and other online threats?

Accepted Answer

Use strong passwords and two-factor authentication

Answer

Keep the network with default settings and no security software

Answer

Give everyone the same password and turn off the firewall

Question 19

Which type of network media transmits data using electromagnetic waves?

Accepted Answer

Wireless

Answer

Coaxial cable

Answer

Fiber optic cable

Answer

Twisted pair cable

Question 20

Sam wants to send a file to his friend over a network. He wants to make sure that the file is sent without any errors or data loss. Which network protocol should Sam use?

Accepted Answer

TCP

Answer

HTTP

Answer

IP

Question 21

Which layer is NOT part of the TCP/IP protocol suite?

Accepted Answer

Database Layer

Answer

Application Layer

Answer

Transport Layer

Answer

Network Layer

Question 22

Which network media type enables data transmission without the need for physical cables?

Accepted Answer

Wireless network

Answer

Copper cable

Answer

Fiber optic cable

Answer

Coaxial cable

Question 23

Which of the following best describes the scope of a Metropolitan Area Network (MAN)?

Accepted Answer

A network connecting computers across a city or metropolitan area.

Answer

A network connecting computers within a small area, like a home or office.

Answer

A network connecting computers internationally.

Answer

A network providing internet access to computers.

Question 24

Which network topology allows every computer to connect directly to any other computer, without the need for a central hub?

Accepted Answer

Mesh Topology

Answer

Bus Topology

Answer

Star Topology

Answer

Ring Topology

Question 25

What does the topology of a network describe?

Accepted Answer

The physical layout of devices

Answer

The rules for communication

Answer

The software for network management

Question 26

How do network management tools assist network administrators in monitoring and maintaining a network's health and performance?

Accepted Answer

Provide real-time monitoring of network traffic and device status, enabling administrators to promptly detect and resolve issues.

Accepted Answer

Generate reports on network performance and resource utilization, aiding administrators in planning and optimizing network capacity.

Accepted Answer

Enable administrators to remotely access and configure network devices, simplifying network management tasks.

Answer

Identify and block malicious activities, safeguarding the network from cyber threats.

Question 27

Which potential drawback is associated with using a star network topology?

Accepted Answer

Increased vulnerability to single points of failure

Answer

High cost of implementation

Answer

Limited scalability

Answer

Complex network management

Question 28

In a computer network, what is the primary function of a network interface card (NIC)?

Accepted Answer

Connect the computer to the network cable

Answer

Store data on the network

Answer

Provide security for the network

Answer

Run network software

Question 29

In a computer network, what is the primary function of the Domain Name System (DNS)?

Accepted Answer

Translates domain names into IP addresses for network communication

Answer

Assigns unique IP addresses to connected devices

Answer

Routes network traffic between subnets

Answer

Provides security for network communications

Question 30

Explain the key differences between TCP and UDP protocols. Discuss which protocol is more appropriate for various applications based on their advantages and limitations.

Accepted Answer

TCP establishes a reliable connection, while UDP does not.

Accepted Answer

UDP is better suited for applications requiring high bandwidth, while TCP is preferred for applications prioritizing reliability.

Answer

Both TCP and UDP can be used for web browsing.

Answer

TCP is an older protocol than UDP.

Question 31

Which network security measure is most effective in preventing unauthorized access from outside the network?

Accepted Answer

Firewall

Answer

Antivirus software

Answer

Access control lists

Answer

Regular software updates

Question 32

What is the main purpose of a network switch in a computer network?

Accepted Answer

Directing data frames only to the intended device

Answer

Sending data packets to all connected devices

Answer

Assigning IP addresses to network devices

Answer

Filtering and routing data packets based on IP addresses

Question 33

What is the purpose of network virtualization?

Accepted Answer

To create multiple virtual networks on a single physical network

Answer

To connect two or more physical networks using a router

Answer

To increase the speed of a network

Answer

To protect a network from cyber threats

Question 34

Which network management tool is designed to capture and analyze network traffic in real-time?

Accepted Answer

Wireshark

Answer

Ping

Answer

Traceroute

Answer

Network Performance Monitor

Question 35

In the TCP/IP protocol suite, which layer is responsible for detecting errors and retransmitting packets if needed?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 36

Which protocol ensures that data packets are delivered reliably and without errors?

Accepted Answer

TCP (Transmission Control Protocol)

Answer

UDP (User Datagram Protocol)

Answer

IP (Internet Protocol)

Question 37

Which network performance metric specifically measures the average time it takes for data to travel from one point to another on a network?

Accepted Answer

Latency

Answer

Throughput

Answer

Packet Loss

Answer

Jitter

Question 38

In computer networks, what type of security threat involves an attacker intercepting data as it travels across a network?

Accepted Answer

Eavesdropping

Answer

Phishing

Answer

Malware

Answer

Spam

Question 39

Which network topology features all devices connected to a central hub?

Accepted Answer

Star Topology

Answer

Bus Topology

Answer

Ring Topology

Question 40

Which layer in the TCP/IP protocol stack is responsible for addressing and routing packets across a network?

Accepted Answer

Network Layer

Answer

Application Layer

Answer

Transport Layer

Answer

Data Link Layer

Question 41

Which network topology features a central device that manages communication, with each node connected to it?

Accepted Answer

Star Topology

Answer

Bus Topology

Answer

Ring Topology

Answer

Mesh Topology

Question 42

Which network management protocol is primarily used to monitor and troubleshoot network performance?

Accepted Answer

SNMP

Answer

HTTP

Answer

FTP

Answer

TCP

Question 43

Which protocol is responsible for assigning IP addresses to devices on a network, allowing them to communicate?

Accepted Answer

DHCP

Answer

TCP

Answer

UDP

Answer

HTTP

Question 44

What is the main purpose of a router in a computer network?

Accepted Answer

To forward data packets between different networks

Answer

To connect devices to the Internet

Answer

To amplify Wi-Fi signals and extend network range

Answer

To store and manage files on a network

Question 45

What is the key difference between a Local Area Network (LAN) and a Wide Area Network (WAN)?

Accepted Answer

LANs connect devices within a limited area, typically a building or campus, while WANs connect devices over larger geographical distances.

Answer

WANs connect devices within a limited area, typically a building or campus, while LANs connect devices over larger geographical distances.

Answer

LANs and WANs are essentially the same type of network.

Answer

LANs are used exclusively for wired connections, while WANs are used for wireless connections.

Question 46

Which of the following is a wired network connection method that physically links devices using cables?

Accepted Answer

Ethernet

Answer

Wi-Fi

Answer

Bluetooth

Answer

Cellular

Question 47

What is a primary benefit of using a Virtual Private Network (VPN) in a computer network?

Accepted Answer

Securing data and online activities by creating a private connection over a public network

Answer

Increasing the speed of internet connections

Answer

Expanding the storage capacity of a network

Answer

Allowing devices to share files and printers more easily

Question 48

What is the primary role of a server in relation to clients in a computer network?

Accepted Answer

Providing resources, services, and data to clients, which request and use them

Answer

Receiving resources, services, and data from clients, which provide and manage them

Answer

Acting as a bridge between different networks, allowing devices to communicate

Answer

Storing and backing up data for all devices on the network

Question 49

What is the main job of a router in a computer network?

Accepted Answer

Sending data between different networks

Answer

Connecting devices on the same network

Answer

Giving access to the internet

Answer

Saving and organizing network information

Question 50

What's the purpose of network neutrality?

Accepted Answer

Treat all internet traffic the same

Answer

Slow down the internet for some users

Answer

Charge different amounts for different types of internet traffic

Answer

Block access to certain websites

Question 51

In remote work environments, what is the primary ethical duty of a network administrator regarding data privacy and security?

Accepted Answer

Safeguarding user data privacy and security

Answer

Tracking network activity for suspicious behavior

Answer

Informing users about network security best practices

Question 52

Which network security measure monitors and controls network traffic to prevent unauthorized access?

Accepted Answer

Firewall

Answer

Encryption

Answer

Anti-virus software

Answer

Virtual Private Network (VPN)

Question 53

What is the primary purpose of the Transmission Control Protocol (TCP)?

Accepted Answer

To establish and maintain a reliable connection between two devices

Answer

To manage the transfer of data across the network

Answer

To detect and correct errors in data transmission

Answer

To encrypt data for secure transmission

Question 54

Which type of network is typically used for connecting devices within a limited physical space, such as a home or office?

Accepted Answer

LAN

Answer

WAN

Answer

MAN

Answer

SAN

Question 55

What is the term for the process of identifying and resolving issues in a network?

Accepted Answer

Troubleshooting

Answer

Network management

Answer

Network security

Answer

Network optimization

Question 56

What is the main purpose of a firewall?

Accepted Answer

To block unauthorized access to a network

Answer

To detect and remove viruses

Answer

To optimize network performance

Answer

To encrypt data

Question 57

What is the term for the tangible components that make up a network, such as computers, cables, and routers?

Accepted Answer

Network infrastructure

Answer

Network protocols

Answer

Network software

Answer

Network topology

Question 58

Which of the following is NOT considered a potential benefit of computer networks?

Accepted Answer

Guaranteed data security

Answer

Enhanced communication

Answer

Increased productivity

Answer

Reduced costs

Question 59

Which of the following best describes a key characteristic of cloud computing?

Accepted Answer

Data storage and processing on centralized remote servers.

Answer

Complete user control over the underlying infrastructure.

Answer

Free and unlimited usage of cloud services.

Answer

Exclusively designed for large-scale businesses.

Question 60

Which practice is most effective for creating and managing strong passwords to enhance network security?

Accepted Answer

Create complex passwords that combine uppercase, lowercase, numbers, and special characters.

Answer

Use simple words and short passwords.

Answer

Include personal information in passwords.

Answer

Reuse the same password for multiple accounts.

Question 61

In a computer network, what's the primary role of a network protocol?

Accepted Answer

Set rules for how devices talk to each other on the network

Answer

Make the network easy to use for people

Answer

Connect different kinds of networks

Question 62

Which of the following is NOT a valid type of computer network topology?

Accepted Answer

Star Trek

Answer

Bus

Answer

Ring

Answer

Star

Question 63

Which protocol is primarily responsible for establishing and maintaining connections between devices on a network?

Accepted Answer

TCP

Answer

IP

Answer

UDP

Answer

HTTP

Question 64

What is the primary purpose of a network firewall?

Accepted Answer

To monitor and filter incoming and outgoing network traffic to prevent unauthorized access or malicious activity.

Answer

To connect different networks

Answer

To provide internet access

Answer

To store network data