Master Computer Networks: A Comprehensive Guide for Beginners

Question 1

Which network topology provides the greatest resilience to component failures?

Accepted Answer

Mesh Topology

Answer

Bus Topology

Answer

Ring Topology

Answer

Star Topology

Question 2

Which layer is not included in the TCP/IP model?

Accepted Answer

Link

Answer

Application

Answer

Transport

Answer

Network

Question 3

In packet-based networks, which protocol guarantees the reliable delivery of data?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

DHCP

Question 4

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

Accepted Answer

Hierarchical

Answer

Bus

Answer

Star

Answer

Point-to-point

Question 5

Which well-known protocol is used to establish secure connections for web browsing?

Accepted Answer

HTTPS

Answer

HTTP

Answer

FTP

Answer

SMTP

Question 6

Which security measure involves encoding data during transmission to protect it from unauthorized access?

Accepted Answer

Encryption

Answer

Authentication

Answer

Authorization

Answer

Access Control

Question 7

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

Accepted Answer

Controlling and filtering network traffic

Answer

Providing secure remote access

Answer

Monitoring network performance

Answer

Detecting and blocking malicious activity

Question 8

Which of the following protocols operates at layer 2 of the OSI model?

Accepted Answer

Ethernet

Answer

TCP

Answer

UDP

Answer

HTTP

Question 9

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

Accepted Answer

Routing traffic between networks

Answer

Connecting devices to a network

Answer

Establishing secure connections

Answer

Monitoring network performance

Question 10

What is a key advantage of utilizing fiber optic cables in network infrastructure?

Accepted Answer

Increased bandwidth capacity

Answer

Reduced latency

Answer

Enhanced encryption capabilities

Answer

Resistance to electromagnetic interference

Question 11

In a bus network topology, how are all nodes connected?

Accepted Answer

In a single continuous path

Answer

In a closed loop

Answer

In a star pattern

Answer

In a mesh pattern

Question 12

Which network protocol is used for reliable data transmission with error correction and flow control?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

DNS

Question 13

Which security measure encrypts data while it is being transmitted over a network, ensuring confidentiality?

Accepted Answer

Virtual private network

Answer

Firewall

Answer

Intrusion detection system

Answer

Antivirus software

Question 14

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

Accepted Answer

To uniquely identify a device on a network

Answer

To route data packets between networks

Answer

To translate domain names to IP addresses

Answer

To protect network communications from unauthorized access

Question 15

Which network device connects different networks and forwards data packets between them?

Accepted Answer

Router

Answer

Switch

Answer

Hub

Answer

Modem

Question 16

In IP addressing, what does a network mask do?

Accepted Answer

Separates the network and host portions of an IP address

Answer

Provides access to specific websites

Answer

Filters incoming network traffic

Answer

Assigns IP addresses to devices

Question 17

In cloud computing, which model provides access to computing resources and infrastructure on demand, without requiring local hardware?

Accepted Answer

Infrastructure as a Service (IaaS)

Answer

Software as a Service (SaaS)

Answer

Platform as a Service (PaaS)

Answer

Serverless computing

Question 18

What is the primary responsibility of a network administrator?

Accepted Answer

To manage and maintain computer networks

Answer

To develop and code software

Answer

To provide technical assistance to users

Answer

To design and implement network security measures

Question 19

Which network security threat involves unauthorized access and theft of sensitive data?

Accepted Answer

Data breach

Answer

Malware

Answer

Phishing

Answer

DoS attack

Question 20

What is the main purpose of a load balancer in a network?

Accepted Answer

To distribute network traffic across multiple servers

Answer

To enhance network security

Answer

To improve web performance by caching content

Answer

To resolve domain names to IP addresses

Question 21

In a WAN, which network topology is commonly used?

Accepted Answer

Mesh

Answer

Bus

Answer

Star

Answer

Ring

Question 22

What primary function does the TCP protocol serve?

Accepted Answer

Ensuring reliable data transmission

Answer

Establishing and managing network connections

Answer

Encapsulating data into packets

Answer

Routing data across networks

Question 23

Which network security measure involves encrypting data during transmission?

Accepted Answer

Virtual private network

Answer

Firewall

Answer

Intrusion detection system

Answer

Antivirus software

Question 24

What is a router's primary function?

Accepted Answer

Connecting different networks

Answer

Connecting devices within a network

Answer

Providing internet access

Answer

Detecting and blocking malicious traffic

Question 25

What is the role of a network subnet mask?

Accepted Answer

Identifying the network portion of an IP address

Answer

Identifying the host portion of an IP address

Answer

Determining the class of an IP address

Answer

Providing a default gateway

Question 26

In a bus network topology, how are devices connected?

Accepted Answer

To a main trunk cable

Answer

To a central hub

Answer

In a circular fashion

Answer

In a star shape

Question 27

Which network security measure monitors network traffic for suspicious activity?

Accepted Answer

Intrusion detection system

Answer

Firewall

Answer

Virtual private network

Answer

Antivirus software

Question 28

What is a switch's primary function in a network?

Accepted Answer

Connecting devices within a network

Answer

Connecting different networks

Answer

Providing internet access

Answer

Detecting and blocking malicious traffic

Question 29

What is the primary purpose of a MAC address in networking?

Accepted Answer

To uniquely identify a network device

Answer

To route traffic between networks

Answer

To provide encryption for network communications

Answer

To store user data on a network

Question 30

Which network protocol is specifically designed for transferring files over a network?

Accepted Answer

FTP

Answer

HTTP

Answer

SMTP

Answer

DNS

Question 31

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

Accepted Answer

To prevent unauthorized access to the network

Answer

To improve network performance

Answer

To store network data

Answer

To connect different network segments

Question 32

Which of the following is a type of cyberattack that aims to disrupt the normal operation of a network or service?

Accepted Answer

Denial of service

Answer

Phishing

Answer

Malware

Answer

Spoofing

Question 33

What is the key difference between a LAN and a WAN?

Accepted Answer

LANs are smaller and connect devices within a limited area, while WANs are larger and connect devices over broader geographical distances.

Answer

LANs are faster than WANs.

Answer

LANs are more secure than WANs.

Answer

LANs are used for private networks and WANs are used for public networks.

Question 34

What is the primary function of a network management system (NMS)?

Accepted Answer

To monitor and manage network devices and performance

Answer

To provide network security

Answer

To store network data

Answer

To connect different network types

Question 35

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

Accepted Answer

Routers connect different networks, while switches connect devices within the same network.

Answer

Routers are typically faster than switches.

Answer

Routers are more expensive than switches.

Answer

Routers are used for wired networks and switches are used for wireless networks.

Question 36

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

Accepted Answer

Hierarchy

Answer

Bus

Answer

Ring

Answer

Star

Question 37

Which layer of the TCP/IP model is responsible for adding headers and trailers to data packets?

Accepted Answer

Network

Answer

Application

Answer

Transport

Answer

Physical

Question 38

Which of the following is a security measure specifically designed to protect networks from unauthorized access and attacks?

Accepted Answer

Firewall

Answer

Switch

Answer

Router

Answer

Load Balancer

Question 39

What is the primary purpose of a routing protocol in computer networks?

Accepted Answer

To determine the best path for data packets to take through a network

Answer

To encrypt data for secure transmission

Answer

To connect multiple devices to a network

Question 40

Which of the following is a common wireless networking standard widely used for connecting devices in offices and homes?

Accepted Answer

802.11n

Answer

HTTP

Answer

TCP/IP

Answer

UDP

Question 41

In a client-server architecture, what is the fundamental difference between a client and a server?

Accepted Answer

A client requests services while a server provides them

Answer

A server can be a client, but a client cannot be a server

Answer

A client is a hardware device while a server is a software application

Question 42

Which of the following is a method used to control access to a computer network based on the physical addresses of devices?

Accepted Answer

MAC filtering

Answer

Encryption

Answer

Load balancing

Answer

Firewalls

Question 43

What is the main purpose of using a subnet mask in computer networks?

Accepted Answer

To divide a network into smaller logical subnetworks

Answer

To encrypt data for secure transmission

Answer

To translate domain names into IP addresses

Answer

To assign IP addresses to devices on a network

Question 44

Which of the following is a command-line tool commonly used for diagnosing network connectivity issues?

Accepted Answer

Ping

Answer

Photoshop

Answer

Internet Explorer

Answer

Microsoft Word

Question 45

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

Accepted Answer

To connect the computer to a network

Answer

To provide a user interface for network management

Answer

To store data

Question 46

In a star network topology, how are devices connected?

Accepted Answer

To a central hub

Answer

Randomly, interconnected in a web-like structure

Answer

With each other in a circular pattern

Answer

In a linear fashion, passing data along

Question 47

Which application-layer protocol is specifically designed for transferring email messages across networks?

Accepted Answer

Simple Mail Transfer Protocol (SMTP)

Answer

Hypertext Transfer Protocol (HTTP)

Answer

Domain Name System (DNS)

Answer

File Transfer Protocol (FTP)

Question 48

Which networking hardware component interconnects multiple networks and manages the flow of data between them?

Accepted Answer

Router

Answer

Switch

Answer

Modem

Answer

Firewall

Question 49

Which type of IP address is allocated for use within private networks and is not routable on the public internet?

Accepted Answer

Private IP address

Answer

Public IP address

Answer

Dynamic IP address

Question 50

Which software deployment model enables businesses to rent computing resources such as servers and storage on-demand over the internet?

Accepted Answer

Infrastructure as a Service (IaaS)

Answer

Platform as a Service (PaaS)

Answer

Network as a Service (NaaS)

Answer

Software as a Service (SaaS)

Question 51

Which network management protocol utilizes a request-response mechanism to retrieve information from network devices?

Accepted Answer

Simple Network Management Protocol (SNMP)

Answer

Transmission Control Protocol (TCP)

Answer

User Datagram Protocol (UDP)

Answer

Internet Control Message Protocol (ICMP)