Network Fundamentals: Master the Basics of Computer Networking

Question 1

In a star network topology, which of the following is true?

Accepted Answer

Each device connects to a central hub

Answer

Devices connect to each other in a straight line

Answer

Every device connects to every other device

Question 2

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

Accepted Answer

Protocol Stack

Answer

Bus

Answer

Star

Answer

Mesh

Question 3

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

Accepted Answer

Interconnecting disparate networks

Answer

Connecting devices on a local network

Answer

Providing web browsing functionality

Answer

Safeguarding the network from malicious actors

Question 4

What is the primary purpose of subnetting within a network?

Accepted Answer

Expand the pool of available IP addresses

Answer

Enhance network security

Answer

Optimize network performance

Answer

Facilitate the connection of multiple networks

Question 5

On a Windows system, which command can be used to display the IP address configuration?

Accepted Answer

ipconfig

Answer

netstat

Answer

ping

Answer

tracert

Question 6

What is the key distinction between physical and logical networks?

Accepted Answer

Physical networks employ cables and hardware, while logical networks rely on software

Answer

Physical networks facilitate local device connections, while logical networks enable internet connectivity

Answer

Physical networks are exclusively wired, while logical networks can be wireless

Answer

Physical and logical networks are identical types of networks

Question 7

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

Accepted Answer

Preventing unauthorized access to the network

Answer

Detecting and isolating malicious software

Answer

Preventing network congestion

Answer

Boosting network performance

Question 8

What is the primary objective of conducting a network vulnerability assessment?

Accepted Answer

Identifying potential weaknesses in a network's security

Answer

Evaluating the effectiveness of implemented security measures

Answer

Monitoring network traffic for suspicious activity

Answer

Enhancing network performance

Question 9

The Media Access Control (MAC) address is a unique identifier assigned to each device connected to a network. What is the primary function of a MAC address?

Accepted Answer

To identify a specific device on the network

Answer

To determine the network type

Answer

To route traffic between networks

Answer

To control access to the network

Question 10

Routers are essential networking devices that perform various functions. Which of the following is a primary function of a router?

Accepted Answer

Packet switching

Answer

Error detection

Answer

Firewall protection

Answer

Network Address Translation (NAT)

Question 11

Firewalls are security measures implemented in networks to protect against unauthorized access. What is the primary purpose of a firewall?

Accepted Answer

To prevent unauthorized access to a network

Answer

To detect and block viruses and other malware

Answer

To improve network performance

Answer

To provide an encrypted connection between two devices

Question 12

Cloud computing offers various service models. Which cloud computing model provides users with access to software applications and resources over the internet?

Accepted Answer

Software as a Service (SaaS)

Answer

Platform as a Service (PaaS)

Answer

Infrastructure as a Service (IaaS)

Answer

Network as a Service (NaaS)

Question 13

Which of the following is **not** a recognized network topology?

Accepted Answer

Hierarchy

Answer

Bus

Answer

Star

Answer

Ring

Question 14

Which layer of the OSI model is responsible for routing packets across networks?

Accepted Answer

Network

Answer

Physical

Answer

Data Link

Answer

Transport

Question 15

Which protocol is used to establish a reliable connection between two devices before data transfer?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

SMTP

Question 16

What is the primary purpose of a MAC address?

Accepted Answer

To uniquely identify individual devices on a network

Answer

To determine the IP address of a device

Answer

To establish a connection between two devices

Answer

To store data packets

Question 17

Which of the following devices is used to connect multiple devices on a network and forward data between them?

Accepted Answer

Switch

Answer

Modem

Answer

Router

Answer

Firewall

Question 18

Which of the following is a common type of network security threat that involves sending an overwhelming amount of traffic to a target network?

Accepted Answer

DDoS attack

Answer

Malware

Answer

Phishing

Answer

Man-in-the-middle attack

Question 19

What is the key difference between a static IP address and a dynamic IP address?

Accepted Answer

Static IP addresses are manually assigned, while dynamic IP addresses are automatically assigned

Answer

Dynamic IP addresses are manually assigned, while static IP addresses are automatically assigned

Answer

Static IP addresses can change, while dynamic IP addresses cannot

Answer

Dynamic IP addresses can change, while static IP addresses cannot

Question 20

Which of the following commands is used to test the reachability of a remote device by sending it a series of echo requests?

Accepted Answer

ping

Answer

ipconfig

Answer

traceroute

Answer

nslookup

Question 21

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

Accepted Answer

To prevent unauthorized access to and from a network

Answer

To improve network performance

Answer

To store data

Answer

To provide internet access

Question 22

Which network topology has a central device that connects all other devices, making it prone to a single point of failure?

Accepted Answer

Star Topology

Answer

Mesh Topology

Answer

Ring Topology

Answer

Bus Topology

Question 23

Which protocol is responsible for resolving domain names into IP addresses?

Accepted Answer

DNS (Domain Name System)

Answer

IP (Internet Protocol)

Answer

TCP (Transmission Control Protocol)

Answer

HTTP (Hypertext Transfer Protocol)

Question 24

In the TCP/IP model, which layer is responsible for directing data packets along the best path through the network?

Accepted Answer

Network Layer

Answer

Transport Layer

Answer

Data Link Layer

Answer

Application Layer

Question 25

Which network device examines the destination MAC address of data packets and forwards them accordingly?

Accepted Answer

Switch

Answer

Hub

Answer

Router

Answer

Firewall

Question 26

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

Accepted Answer

Covers a vast geographical area

Answer

Connects devices within a limited physical space

Answer

Employs high-speed transmission technologies

Answer

Typically managed by a single organization

Question 27

A network administrator needs to ensure secure data transmission between devices on a network. Which protocol would best achieve this?

Accepted Answer

SSL/TLS (Secure Sockets Layer/Transport Layer Security)

Answer

FTP (File Transfer Protocol)

Answer

DHCP (Dynamic Host Configuration Protocol)

Question 28

For a company with offices in different cities, which type of network would be most suitable?

Accepted Answer

WAN (Wide Area Network)

Answer

LAN (Local Area Network)

Answer

MAN (Metropolitan Area Network)

Answer

PAN (Personal Area Network)

Question 29

What is the primary purpose of a subnet mask?

Accepted Answer

To divide an IP address into network and host portions

Answer

To encrypt data packets for secure transmission

Answer

To resolve domain names into IP addresses

Question 30

Which is a key benefit of using a network?

Accepted Answer

Resource sharing

Answer

Increased hardware expenses

Answer

Increased security vulnerabilities

Answer

Reduced communication speeds