Local Computer Networks: A Comprehensive Guide for Beginners

Question 1

Which network topology involves each device connecting to a central device that routes data?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 2

What's the primary function of a network interface card (NIC) in a LAN?

Accepted Answer

Connect devices to the network

Answer

Assign IP addresses

Answer

Protect data from unauthorized access

Answer

Direct data packets between networks

Question 3

Which of the following is NOT a component of a Local Area Network (LAN)?

Accepted Answer

Printers

Answer

Network interface cards (NICs)

Answer

Ethernet cables

Answer

Modems

Question 4

In a star topology LAN, which device acts as the central connection point for all other devices?

Accepted Answer

Hub

Answer

Switch

Answer

Router

Answer

Access point

Question 5

Which protocol is primarily responsible for data communication within a LAN?

Accepted Answer

Transmission Control Protocol/Internet Protocol (TCP/IP)

Answer

Hypertext Transfer Protocol (HTTP)

Answer

File Transfer Protocol (FTP)

Answer

Simple Mail Transfer Protocol (SMTP)

Question 6

Which of the following is NOT an advantage of using LANs?

Accepted Answer

Increased network security risks

Answer

Enhanced file and resource sharing

Answer

Improved communication and collaboration

Answer

Reduced operational costs

Question 7

What is the primary purpose of a NIC in a LAN?

Accepted Answer

To connect a computer to the network

Answer

To provide internet access

Answer

To manage network traffic

Answer

To protect the network from viruses

Question 8

Which type of cable is commonly used in Ethernet LANs?

Accepted Answer

Twisted pair cable

Answer

Coaxial cable

Answer

Fiber optic cable

Answer

Serial cable

Question 9

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

Accepted Answer

To connect multiple LAN segments

Answer

To provide network access to the internet

Answer

To manage data flow

Answer

To filter network traffic

Question 10

How do firewalls protect Local Area Networks (LANs) from external threats?

Accepted Answer

Monitor and filter network traffic, allowing only authorized access

Answer

Encrypt data transmitted within the LAN

Answer

Detect and respond to intrusion attempts

Answer

Create a physical barrier between the LAN and the outside world

Question 11

In a Local Area Network (LAN), what is the main purpose of the TCP/IP protocol?

Accepted Answer

Ensuring reliable data transmission

Answer

Controlling network traffic flow

Answer

Establishing physical connections between devices

Answer

Protecting data from unauthorized access

Question 12

Which of the following is not a component of a Local Area Network (LAN)?

Accepted Answer

Server

Answer

Network Interface Card (NIC)

Answer

Switch

Answer

Hub

Question 13

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

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 14

What is the primary purpose of a Network Interface Card (NIC)?

Accepted Answer

To connect a device to a LAN

Answer

To route data between networks

Answer

To provide wireless internet access

Answer

To store network configuration data

Question 15

Which emerging technology is poised to revolutionize the evolution of Local Area Networks (LANs) in the near future?

Accepted Answer

Software-defined networking (SDN)

Answer

Quantum computing

Answer

Virtual and augmented reality (VR/AR)

Answer

Artificial intelligence (AI)

Question 16

How does increased network latency impact LAN performance, and what factors contribute to high latency?

Accepted Answer

Increased latency slows data transmission, reducing network responsiveness.

Answer

Increased latency weakens network security by enabling unauthorized access.

Answer

Increased latency enhances network bandwidth, allowing for faster data transfer.

Answer

Increased latency has no effect on LAN performance.

Question 17

Which LAN topology involves connecting each device to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Question 18

Identify the protocol specifically designed for use in LANs.

Accepted Answer

Ethernet

Answer

TCP/IP

Answer

UDP

Question 19

Provide an example of a practical application of LANs.

Accepted Answer

File sharing

Answer

Internet browsing

Answer

Emailing

Question 20

Describe a potential security threat faced by LANs.

Accepted Answer

Physical attacks

Answer

Software updates

Answer

Regular security audits

Question 21

Identify a best practice for enhancing the security of LANs.

Accepted Answer

Regularly conducting security audits

Answer

Ignoring software updates

Answer

Neglecting user education

Question 22

In a star topology used in LANs, how are all computers connected?

Accepted Answer

To a single central hub

Answer

In a linear chain

Answer

In a circular loop

Answer

Directly to each other

Question 23

Which communication protocol is primarily used in LANs to transmit data?

Accepted Answer

Ethernet

Answer

TCP/IP

Answer

UDP

Answer

Wi-Fi

Question 24

What is the maximum theoretical data transfer speed of a Gigabit Ethernet connection?

Accepted Answer

1 Gbps

Answer

10 Mbps

Answer

100 Mbps

Answer

10 Gbps

Question 25

Which of the following is NOT a potential benefit of implementing a LAN?

Accepted Answer

Increased security

Answer

Enhanced resource sharing

Answer

Improved communication

Answer

Reduced costs

Question 26

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

Accepted Answer

Identify a specific network interface

Answer

Route traffic across the network

Answer

Provide encryption for data

Answer

Manage user access rights

Question 27

Which type of cable is commonly used to establish physical connections between devices in a wired LAN?

Accepted Answer

Twisted-pair cable

Answer

Coaxial cable

Answer

Fiber-optic cable

Answer

Wireless

Question 28

What is the primary role of a router in a LAN?

Accepted Answer

Manage the flow of network traffic

Answer

Connect multiple LANs together

Answer

Provide access to the Internet

Answer

Store data and applications

Question 29

In a Local Area Network (LAN), which ethical and legal considerations are crucial for ensuring network security?

Accepted Answer

Protecting the privacy of sensitive data and user information

Accepted Answer

Adhering to data protection regulations and standards

Accepted Answer

Preventing unauthorized network access and mitigating cyber threats

Answer

Relying solely on antivirus software for security

Question 30

Which topology connects each device to a central hub?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 31

What protocol is primarily used for communication within a LAN?

Accepted Answer

Ethernet

Answer

TCP/IP

Answer

HTTP

Answer

SMTP

Question 32

Which type of security measure involves encrypting data transmitted over a LAN?

Accepted Answer

Encryption

Answer

Firewall

Answer

Access control

Answer

Authentication

Question 33

Which device connects multiple devices together in a LAN?

Accepted Answer

Switch

Answer

Modem

Answer

Router

Answer

Bridge

Question 34

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

Accepted Answer

To connect a device to a LAN

Answer

To provide internet access

Answer

To store data

Answer

To process data

Question 35

What is a subnet mask used for?

Accepted Answer

Dividing a network into smaller subnetworks

Answer

Filtering network traffic

Answer

Establishing a network protocol

Answer

Preventing unauthorized access

Question 36

What is a key characteristic of a wireless LAN (WLAN)?

Accepted Answer

Uses radio waves to connect devices

Answer

Uses Ethernet cables to connect devices

Answer

Is connected to the internet

Answer

Is used exclusively for gaming

Question 37

In a Local Area Network (LAN), how do switches enhance network performance and efficiency?

Accepted Answer

By preventing collisions and optimizing bandwidth usage

Answer

By centralizing network traffic management

Answer

By significantly increasing network expenses

Question 38

Which of the following is a primary function of network management tools in optimizing the performance of Local Area Networks (LANs)?

Accepted Answer

Monitoring network traffic to identify bottlenecks and congestion

Answer

Installing antivirus software on network devices

Answer

Updating the operating system on servers connected to the LAN

Answer

Managing user accounts on network devices

Question 39

For real-time applications, which protocol prioritizes quick responses and tolerates data loss?

Accepted Answer

UDP

Answer

TCP/IP

Answer

IPX

Question 40

Which of the following is NOT a core component of a LAN?

Accepted Answer

Modem

Answer

Network interface card

Answer

Hub

Answer

Switch

Question 41

Which LAN topology features a central connection point from which all devices are directly connected?

Accepted Answer

Star

Answer

Ring

Answer

Mesh

Answer

Bus

Question 42

Which security measure is employed to guard against unauthorized access to a LAN?

Accepted Answer

Firewall

Answer

Spam filter

Answer

Intrusion detection system

Answer

Antivirus software

Question 43

What is the primary function of a Local Area Network (LAN)?

Accepted Answer

To connect devices within a limited physical area

Answer

To store data

Answer

To process data

Answer

To provide internet access

Question 44

Which advantage is associated with the use of fiber optic cables in LANs?

Accepted Answer

High bandwidth and low latency

Answer

Easy to install

Answer

Low cost

Answer

Resistance to interference

Question 45

What is the primary role of a router in a LAN?

Accepted Answer

To connect different networks

Answer

To filter traffic

Answer

To provide network access

Answer

To amplify signals

Question 46

Which LAN type is commonly used for large-scale networks?

Accepted Answer

Hierarchical

Answer

Ring

Answer

Bus

Answer

Peer-to-peer

Question 47

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

Accepted Answer

To manage and control network resources

Answer

To store data

Answer

To process data

Answer

To provide user interface

Question 48

Identify a common business application of LANs?

Accepted Answer

File sharing, sharing of printers, and communication among employees

Answer

Internet browsing

Answer

Email communication

Question 49

Which of the following is NOT a major LAN topology?

Accepted Answer

Mesh

Answer

Bus

Answer

Ring

Answer

Star

Question 50

What is the primary purpose of a firewall in a LAN?

Accepted Answer

To prevent unauthorized access from external networks

Answer

To improve network performance

Answer

To connect different LAN segments

Question 51

What is a primary benefit of implementing a LAN in an organization?

Accepted Answer

Enhanced resource sharing and collaboration

Answer

Increased security

Answer

Reduced hardware expenses

Answer

Improved internet connectivity

Question 52

What is the main function of a network interface card (NIC) in a LAN?

Accepted Answer

To enable communication between the computer and the network

Answer

To regulate power supply to network devices

Answer

To store network configuration data

Question 53

What is the primary responsibility of a network operating system (NOS) in a LAN?

Accepted Answer

To manage network resources and provide services

Answer

To protect the network from unauthorized access

Answer

To connect different network segments

Answer

To authenticate and authorize users