Introduction to Computer Networks: Master the Fundamentals

Question 1

In a star network topology, how are devices connected?

Accepted Answer

Directly to a central hub

Answer

In a circular fashion

Answer

In a hierarchical structure

Answer

Through multiple redundant paths

Question 2

Which network topology prioritizes fault tolerance by connecting each device to multiple others, ensuring uninterrupted data flow even when devices fail?

Accepted Answer

Mesh

Answer

Bus

Answer

Star

Answer

Ring

Question 3

What is a key difference between TCP and UDP protocols?

Accepted Answer

TCP establishes connections, while UDP operates without connections.

Answer

TCP offers higher bandwidth than UDP.

Answer

UDP is inherently more secure than TCP.

Answer

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

Question 4

Which network topology is renowned for its exceptional resilience and reliability, ensuring uninterrupted operation even in the event of component failures?

Accepted Answer

Mesh

Answer

Bus

Answer

Star

Answer

Ring

Question 5

In a hierarchical network topology, nodes are arranged in what manner?

Accepted Answer

Nodes are arranged in a tree-like structure, where each node can have multiple child nodes.

Answer

All nodes are connected to a single central node.

Answer

All nodes are connected to each other.

Answer

Nodes are arranged in a ring, where each node is connected to two other nodes.

Question 6

Which network topology is NOT commonly used in computer networks?

Accepted Answer

Loop

Answer

Bus

Answer

Star

Answer

Ring

Question 7

What is a key characteristic of computer networking technology?

Accepted Answer

Enables efficient data transfer between devices on a network

Answer

Offers secure data storage and retrieval

Answer

Eliminates the need for physical connections between devices

Answer

Automatically resolves network configuration issues without human intervention

Question 8

In a computer network, what is the primary function of a router?

Accepted Answer

Connecting different physical networks, enabling communication between devices on those networks

Answer

Connecting devices on the same physical network

Answer

Providing direct Internet access to connected devices

Answer

Storing data and information for the network

Question 9

In a star topology, data flows from the central hub to other nodes. Which network device serves as the central connection point?

Accepted Answer

Switch

Answer

Router

Answer

Gateway

Answer

Modem

Question 10

In a multi-story office building housing diverse departments, which network topology is optimal for effective network management and dependable data transfer?

Accepted Answer

Star topology

Answer

Bus topology

Answer

Ring topology

Answer

Mesh topology

Question 11

Identify the network topology that is NOT a recognized configuration:

Accepted Answer

Linear

Answer

Bus

Answer

Star

Answer

Ring

Question 12

Which network topology provides the advantage of improved network performance due to multiple redundant paths?

Accepted Answer

Mesh

Answer

Bus

Answer

Star

Answer

Ring

Question 13

Which of the following is a transmission mode, distinct from a network topology?

Accepted Answer

Full-duplex

Answer

Bus

Answer

Star

Answer

Ring

Question 14

In a star network topology, how are the nodes arranged?

Accepted Answer

Nodes are connected to a central node.

Answer

Nodes are connected directly to each other.

Answer

Nodes are connected in a closed loop.

Answer

Each node is connected to only two other nodes.

Question 15

Which network topology involves each device connecting directly to a central point, which in turn connects all other devices?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 16

In the TCP/IP model, which layer is responsible for directing data packets across networks?

Accepted Answer

Network

Answer

Application

Answer

Transport

Question 17

In a ring topology, each device functions as a:

Accepted Answer

Data packet forwarder

Answer

Centralized data processor

Answer

Internet connectivity provider

Question 18

In a bus network topology, compared to a mesh network topology, which of the following is a distinguishing characteristic?

Accepted Answer

Broadcast traffic can cause network congestion

Answer

High fault tolerance due to multiple redundant paths

Answer

Suitable for large-scale networks with a wide geographical distribution

Answer

Requires complex routing algorithms to determine the optimal path

Question 19

Which of the following is not a recognized network topology?

Accepted Answer

Square

Answer

Bus

Answer

Star

Answer

Ring

Question 20

Which of the following is a common network security threat that involves an unauthorized individual gaining access to a computer system or network with malicious intent?

Accepted Answer

Malware

Answer

Buffer overflow

Answer

Packet sniffing

Answer

SQL injection

Question 21

Which of these is not a typical network application?

Accepted Answer

Router configuration

Answer

Web browsing

Answer

Email

Answer

File sharing

Question 22

In a computer network, what is the primary function of a router?

Accepted Answer

Forwarding data packets between different network segments

Answer

Connecting devices within the same network segment

Answer

Providing network security by filtering traffic

Answer

Translating domain names into IP addresses

Question 23

Which network topology features a central hub or switch that directly connects all nodes and manages data flow?

Accepted Answer

Star topology

Answer

Bus topology

Answer

Ring topology

Question 24

Which network management tool is designed to trace the path of data packets, providing detailed information about their routing and any issues encountered during transmission?

Accepted Answer

Traceroute

Answer

Ping

Answer

SNMP

Question 25

In a network where multiple devices attempt to transmit data concurrently, which mechanism is employed to avert data collisions and guarantee successful transmission?

Accepted Answer

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

Answer

Frame Relay

Answer

Asynchronous Transfer Mode (ATM)

Answer

Internet Protocol version 4 (IPv4)

Question 26

In the realm of network security, which type of malicious software actively seeks out and exploits vulnerabilities in computer systems and networks, often without the user's knowledge or consent?

Accepted Answer

Malware

Answer

Firewall

Answer

Antivirus software

Question 27

What is the primary goal of computer networking, allowing devices and systems to interact and share resources?

Accepted Answer

Connecting multiple devices and systems to enable data sharing and resource access.

Answer

Providing internet access to users and organizations.

Answer

Enhancing computer system security.

Answer

Managing and maintaining IT infrastructure.

Question 28

Which network performance metric measures the proportion of data packets that reach their destination without errors?

Accepted Answer

Packet Delivery Ratio

Answer

Throughput

Answer

Latency

Question 29

In a star topology, how does each device connect to the other devices on the network?

Accepted Answer

To a central device, forming a star shape

Answer

Directly to all other devices

Answer

To a shared communication channel

Answer

To a ring-shaped network structure

Question 30

Which network topology connects devices in a circular pattern, allowing data to flow in both directions around the ring?

Accepted Answer

Ring

Answer

Bus

Answer

Star

Question 31

Which of the following is NOT a characteristic of a computer network?

Accepted Answer

Centralized control

Answer

Data sharing

Answer

Resource sharing

Answer

Communication over a transmission medium

Question 32

Which of the following is **not** a function of SNMP?

Accepted Answer

Encrypting network traffic

Answer

Collecting network performance data

Answer

Configuring network devices remotely

Question 33

In the TCP/IP model, which layer is responsible for managing network connections?

Accepted Answer

Transport layer

Answer

Application layer

Answer

Network layer

Answer

Data link layer

Question 34

Which technique is specifically designed to optimize network performance by controlling the speed of data transmission?

Accepted Answer

Traffic shaping

Answer

Load balancing

Answer

Queuing

Answer

Error correction

Question 35

In the management and security of computer networks, which ethical consideration is of primary importance?

Accepted Answer

Protecting sensitive data's confidentiality and integrity

Answer

Prioritizing organizational needs over user privacy

Answer

Ensuring equal resource access for all users

Answer

Monitoring user activity without their knowledge or consent

Question 36

In computer networks, what is the primary function of switches, and how do they contribute to enhanced network performance?

Accepted Answer

Switches establish isolated collision domains for each connected device, minimizing collision impact and improving network efficiency.

Answer

Switches enable multiple devices to share a single network connection, reducing port requirements and cabling costs.

Answer

Switches provide advanced security features to prevent unauthorized access and block malicious traffic.

Question 37

In the OSI model, which layer is responsible for establishing, managing, and terminating connections between devices?

Accepted Answer

Transport Layer

Answer

Data Link Layer

Answer

Network Layer

Answer

Application Layer

Question 38

What is the primary purpose of an IP address in a computer network?

Accepted Answer

To uniquely identify each device connected to the network

Answer

To determine the type of data being transmitted

Answer

To establish a secure connection between two devices

Answer

To control the flow of data within a network

Question 39

Which protocol is used to ensure reliable and error-free data transmission in TCP/IP networks?

Accepted Answer

TCP

Answer

UDP

Answer

IP

Answer

HTTP

Question 40

What is the fundamental difference between client-server and peer-to-peer networks?

Accepted Answer

Client-server networks have a dedicated server, while peer-to-peer networks do not.

Answer

Peer-to-peer networks are more secure than client-server networks.

Answer

Client-server networks are typically more efficient than peer-to-peer networks.

Answer

Peer-to-peer networks are easier to manage than client-server networks.

Question 41

Which application layer protocol is primarily used for sending and receiving emails?

Accepted Answer

SMTP

Answer

HTTP

Answer

FTP

Answer

SSH

Question 42

Which type of network security system monitors and analyzes network traffic to detect and prevent unauthorized access?

Accepted Answer

Intrusion Detection System (IDS)

Answer

Firewall

Answer

Virtual Private Network (VPN)

Answer

Access Control List (ACL)

Question 43

What is the primary objective of a network performance monitoring tool?

Accepted Answer

To identify network bottlenecks and optimize performance

Answer

To improve network security

Answer

To manage network devices

Answer

To diagnose network outages

Question 44

In a network, what is the primary function of routers?

Accepted Answer

Forwarding data packets between network segments

Answer

Connecting devices within a network segment

Answer

Protecting against unauthorized network access

Answer

Storing and managing network configuration information

Question 45

Which of the following is a network characteristic, but NOT a network performance metric?

Accepted Answer

Network Topology

Answer

Throughput

Answer

Latency

Answer

Jitter

Question 46

Which component forms the foundational unit of a computer network?

Accepted Answer

Node

Answer

Protocol

Answer

Interface

Answer

Cable

Question 47

Which protocol is primarily responsible for establishing and maintaining network connections?

Accepted Answer

TCP

Answer

DHCP

Answer

FTP

Answer

SMTP

Question 48

Which topology results in a fully connected network, where each node is directly connected to every other node?

Accepted Answer

Mesh

Answer

Bus

Answer

Ring

Answer

Star

Question 49

Which technique is used to divide a large network into smaller, more manageable segments?

Accepted Answer

Subnetting

Answer

VLANs

Answer

NAT

Answer

VPN

Question 50

Which device connects different network segments and facilitates data transfer between them?

Accepted Answer

Router

Answer

Modem

Answer

Firewall

Answer

Switch

Question 51

Which concept defines a set of rules for the format and transmission of data over a network?

Accepted Answer

Protocol stack

Answer

Application layer

Answer

Transport layer

Answer

Network layer

Question 52

Which software-defined network (SDN) component centralizes the management and control of network devices?

Accepted Answer

Controller

Answer

Hypervisor

Answer

Firewall

Answer

Router

Question 53

In the context of network monitoring and optimization, what is the main purpose of a network management system (NMS)?

Accepted Answer

Continuously gathers and analyzes network data to proactively identify potential issues and performance bottlenecks.

Answer

Provides a graphical user interface (GUI) for administrators to manually configure and troubleshoot network devices.

Answer

Detects and responds to security threats and vulnerabilities in real-time, ensuring network security.

Question 54

In network management, which ethical principle is of utmost importance?

Accepted Answer

Preserving the privacy and confidentiality of user data

Answer

Employing encryption for network traffic security

Answer

Preventing unauthorized access to network resources

Answer

Deploying firewalls to combat cyber threats

Question 55

Which of the following is a defining characteristic of a computer network?

Accepted Answer

Shared resources among devices

Answer

Unreliable connections

Answer

Centralized control over all network components

Answer

Limited geographical area coverage

Question 56

In the Open Systems Interconnection (OSI) model, which layer is responsible for addressing and routing data packets?

Accepted Answer

Network

Answer

Physical

Answer

Transport

Answer

Application

Question 57

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

Accepted Answer

To uniquely identify individual devices connected to a network segment

Answer

To determine the best path for data transmission

Answer

To provide encryption for secure data exchange

Answer

To store user data and preferences

Question 58

Which protocol is primarily responsible for establishing and maintaining communication channels between network devices?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

FTP

Question 59

How does IPv6 differ primarily from IPv4?

Accepted Answer

IPv6 utilizes a 128-bit address space, while IPv4 uses a 32-bit address space

Answer

IPv6 supports flexible subnet addressing, unlike IPv4

Answer

IPv6 offers enhanced security features compared to IPv4

Answer

IPv6 is exclusively designed for mobile network devices

Question 60

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

Accepted Answer

To block unauthorized access and protect the network

Answer

To enhance network performance by optimizing data flow

Answer

To collect and store network activity logs

Answer

To provide a secure connection for remote network access

Question 61

Define a distributed system in computing.

Accepted Answer

A system composed of multiple independent computers that coordinate and communicate to achieve a common goal

Answer

A system where a central computer exercises complete control over all other components

Answer

A system that can only communicate data in one direction

Answer

A system known for being highly unreliable

Question 62

How does software-defined networking (SDN) transform traditional network management, and what advantages does it offer for network operations?

Accepted Answer

SDN separates the control plane from the data plane.

Answer

SDN reduces network latency.

Answer

SDN eliminates the need for physical network infrastructure.

Answer

SDN makes network management more complex.

Question 63

In the TCP/IP protocol suite, which layer is responsible for routing packets and managing addressing information?

Accepted Answer

Network Layer

Answer

Application Layer

Answer

Transport Layer

Answer

Data Link Layer

Question 64

How does network forensics improve network security?

Accepted Answer

By analyzing network traffic to find malicious activities and security breaches.

Answer

By helping recover compromised data after a network security breach.

Answer

By finding and fixing network bottlenecks to improve network performance.

Answer

By constantly monitoring network activity to provide real-time protection against new cyber threats.