Networking and Communications: Master the Fundamentals of Network Technology

Question 1

What is a primary benefit of using a layered network architecture?

Accepted Answer

Enhanced network management and troubleshooting due to distinct layers.

Answer

Improved performance compared to a flat network architecture.

Answer

Increased security compared to a flat network architecture.

Answer

Lower implementation costs compared to a flat network architecture.

Question 2

In the TCP/IP protocol suite, which layer manages connections between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 3

Which layer is **excluded** from the TCP/IP protocol suite?

Accepted Answer

Session

Answer

Application

Answer

Transport

Answer

Network

Question 4

In the TCP/IP protocol suite, what is the main function of the Network Interface Card (NIC)?

Accepted Answer

Converting digital data into electrical signals for network transmission

Answer

Managing data flow between the computer's memory and the network

Answer

Providing encryption and decryption services for secure data transmission

Answer

Assigning IP addresses to devices connected to the network

Question 5

In the OSI model, which layer is responsible for routing packets and selecting the optimal path for data transmission?

Accepted Answer

Network Layer

Answer

Data Link Layer

Answer

Physical Layer

Answer

Application Layer

Question 6

In the OSI model, which layer is responsible for determining the route data packets take through a network?

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Data link layer

Question 7

In the TCP/IP model, which layer handles error detection and correction?

Accepted Answer

Transport layer

Answer

Physical layer

Answer

Data Link layer

Answer

Network layer

Question 8

When selecting a transport-layer protocol for an application, what is a key advantage of the Transmission Control Protocol (TCP)?

Accepted Answer

TCP ensures reliable and sequential data delivery.

Answer

TCP offers higher efficiency than UDP.

Answer

TCP provides stronger security measures than UDP.

Answer

TCP is simpler to implement than UDP.

Question 9

Which protocol is a fundamental part of the TCP/IP suite?

Accepted Answer

IP

Answer

Ethernet

Answer

USB

Answer

Bluetooth

Question 10

Within the OSI model, which layer is responsible for ensuring reliable data transfer by implementing error control and flow control mechanisms?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 11

Which component forms the foundation of the TCP/IP protocol suite?

Accepted Answer

Internet Protocol (IP)

Answer

Hypertext Transfer Protocol (HTTP)

Answer

Simple Mail Transfer Protocol (SMTP)

Answer

File Transfer Protocol (FTP)

Question 12

Within the OSI model, which layer is responsible for directing packets across multiple networks?

Accepted Answer

Network Layer

Answer

Data Link Layer

Answer

Transport Layer

Answer

Application Layer

Question 13

In the TCP/IP protocol suite, which layer is responsible for ensuring reliable data transfer?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 14

Within the OSI model, which layer is tasked with ensuring reliable data transmission and error control?

Accepted Answer

Transport layer

Answer

Physical layer

Answer

Application layer

Answer

Network layer

Question 15

Which network protocol guarantees reliable data delivery despite potential network issues or data loss?

Accepted Answer

TCP

Answer

UDP

Answer

FTP

Answer

HTTP

Question 16

Within the OSI model, which layer is primarily responsible for safeguarding data transmission between devices on a network?

Accepted Answer

Transport layer

Answer

Application layer

Answer

Presentation layer

Answer

Session layer

Question 17

Within the TCP/IP protocol suite, which layer guarantees reliable data transmission?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 18

In the OSI model, which layer is responsible for transmitting raw data across a physical medium?

Accepted Answer

Physical

Answer

Transport

Answer

Application

Answer

Session

Question 19

In the OSI model, which layer is responsible for directing data packets to their intended destinations based on their IP addresses?

Accepted Answer

Network Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Transport Layer

Question 20

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

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Data link layer

Question 21

Within the OSI model, which layer is tasked with ensuring data packets reach their intended destination device?

Accepted Answer

Network

Answer

Physical

Answer

Data Link

Answer

Transport

Question 22

In the OSI networking model, which layer is tasked with detecting and rectifying errors that occur during data transmission?

Accepted Answer

Data Link Layer

Answer

Physical Layer

Answer

Network Layer

Answer

Transport Layer

Question 23

In network management, which tool is primarily used to monitor the health and performance of network devices and services?

Accepted Answer

Network Management System (NMS)

Answer

Network Protocol Analyzer

Answer

Packet Sniffer

Question 24

Within the OSI model, which layer is responsible for directing data packets across a network?

Accepted Answer

Network layer

Answer

Physical layer

Answer

Data link layer

Question 25

In the OSI model, which layer is dedicated to ensuring the reliable and sequenced delivery of data?

Accepted Answer

Transport Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Network Layer

Question 26

Which OSI model layer handles data encapsulation and addressing?

Accepted Answer

Data Link

Answer

Application

Answer

Transport

Question 27

In cloud computing, which service model offers a fully managed IT infrastructure on a pay-as-you-go basis?

Accepted Answer

Infrastructure as a Service (IaaS)

Answer

Software as a Service (SaaS)

Answer

Platform as a Service (PaaS)

Answer

Function as a Service (FaaS)

Question 28

Which network protocol utilizes a three-way handshake to establish reliable connections between devices?

Accepted Answer

TCP

Answer

UDP

Answer

ICMP

Answer

HTTP

Question 29

Which of the following is a potential disadvantage of using a network management system (NMS) in managing a corporate network?

Accepted Answer

Increased network complexity and overhead

Answer

Enhanced network visibility and control

Answer

Simplified network troubleshooting and resolution

Question 30

Which routing protocol maintains a distributed database for network topology and optimal path calculations?

Accepted Answer

Link-State Routing

Answer

Distance Vector Routing

Answer

Path Vector Routing

Answer

Hybrid Routing

Question 31

Within the TCP/IP protocol suite, which protocol ensures reliable, connection-based data transmission?

Accepted Answer

TCP

Answer

HTTP

Answer

UDP

Question 32

What is a defining characteristic of a network protocol?

Accepted Answer

It establishes a shared language for communication between devices.

Answer

It is exclusively implemented in hardware.

Answer

It is solely utilized for data transmission.

Question 33

Which network routing algorithm calculates the shortest path between devices by counting the number of hops?

Accepted Answer

Distance-vector Routing

Answer

Link-state Routing

Answer

Path-vector Routing

Question 34

Which routing protocol relies on a distributed database to store network topology data and compute optimal paths for data transmission?

Accepted Answer

OSPF

Answer

RIP

Answer

BGP

Answer

EIGRP

Question 35

In the OSI model, which layer is responsible for directing packets across a network?

Accepted Answer

Network layer

Answer

Physical layer

Answer

Transport layer

Answer

Application layer

Question 36

In the TCP/IP protocol suite, which layer is responsible for establishing and maintaining a reliable, connection-oriented service for applications?

Accepted Answer

Transport layer

Answer

Application layer

Answer

Network layer

Answer

Data Link layer

Question 37

Within the OSI model, which layer is responsible for managing data link layer addressing?

Accepted Answer

Data Link Layer

Answer

Network Layer

Answer

Transport Layer

Question 38

In network security, what is a primary benefit of using a firewall?

Accepted Answer

Prevents unauthorized access to network resources.

Answer

Encrypts data during transmission.

Answer

Detects and neutralizes malware infections.

Answer

Ensures compliance with industry regulations.

Question 39

Within the TCP/IP protocol suite, which protocol is primarily responsible for establishing and maintaining connections between hosts on a network?

Accepted Answer

Transmission Control Protocol (TCP)

Answer

Internet Protocol (IP)

Answer

User Datagram Protocol (UDP)

Answer

Hypertext Transfer Protocol (HTTP)

Question 40

To securely connect two remote sites over a WAN, which technology ensures data integrity, confidentiality, and minimizes network overhead?

Accepted Answer

IPsec

Answer

Frame Relay

Answer

ATM

Answer

MPLS

Question 41

In the context of network security, what is a key benefit of using a firewall?

Accepted Answer

Preventing unauthorized access to sensitive network resources and data

Answer

Enhancing network speed and performance

Answer

Providing backup and recovery options in case of network failures

Answer

Simplifying network administration and reducing troubleshooting efforts

Question 42

Within the OSI model, which layer is tasked with managing and controlling the flow of data between two devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Question 43

Which of the following is a **drawback** of implementing a Network Management System (NMS)?

Accepted Answer

Increased network complexity and cost

Answer

Centralized monitoring and control of network devices

Answer

Improved network performance and availability

Answer

Reduced network security risks

Question 44

In modern network management, how do AI and ML enhance network operations? Discuss their contributions to monitoring, performance optimization, and proactive problem detection.

Accepted Answer

AI and ML enable real-time monitoring, helping admins swiftly identify and address performance issues.

Accepted Answer

AI and ML algorithms optimize network configurations, reducing latency and boosting throughput.

Answer

AI and ML are mainly used for network security, detecting and preventing cyber threats.

Answer

AI and ML have little impact on network management, as traditional methods remain more effective.

Question 45

What are the fundamental principles and best practices of network management, encompassing techniques for configuration management, fault detection, and performance monitoring?

Accepted Answer

Centralization, automation, and proactive monitoring are key principles of network management.

Answer

Network management primarily involves resolving network issues after they arise.

Answer

Configuration management entails manually updating network devices individually.

Question 46

Which of the following is NOT a routing protocol?

Accepted Answer

ARP

Answer

RIP

Answer

OSPF

Answer

BGP

Question 47

Which of the following characteristics does NOT apply to a star network topology?

Accepted Answer

Data transmission can occur along multiple paths

Answer

All devices connect to a central hub

Answer

It is simple to manage and troubleshoot

Answer

It is well-suited for extensive networks

Question 48

The primary purpose of a MAC address is to:

Accepted Answer

Uniquely identify a specific network device

Answer

Direct data between different networks

Answer

Establish secure connections among devices

Answer

Control the flow of network traffic

Question 49

Which protocol operates at Layer 2 of the OSI model?

Accepted Answer

Ethernet

Answer

HTTP

Answer

TCP

Answer

IP

Question 50

Which type of network attack commonly exploits vulnerabilities in software applications?

Accepted Answer

Malware

Answer

DoS attack

Answer

Phishing

Answer

Man-in-the-middle attack

Question 51

The primary objective of network management is to:

Accepted Answer

Guarantee the availability, performance, and security of network resources

Answer

Design and deploy network architectures

Answer

Monitor and analyse network traffic patterns

Answer

Troubleshoot and resolve network issues

Question 52

Which of the following is NOT an advantage of utilizing cloud computing for network services?

Accepted Answer

Increased control over data

Answer

Enhanced scalability

Answer

Cost-effectiveness

Answer

Reduced hardware maintenance

Question 53

Within a network security architecture, the primary role of a firewall is to:

Accepted Answer

Prevent unauthorized access to the network

Answer

Detect and respond to malicious network attacks

Answer

Monitor network traffic for suspicious activity

Answer

Provide encryption for data transmission

Question 54

What key feature distinguishes a mesh network from conventional network architectures?

Accepted Answer

Tolerance to node outages

Answer

Hierarchical structure

Answer

Necessity for manual setup

Question 55

Within a network, what is the primary responsibility of a router?

Accepted Answer

Determining the best path for data packets across networks

Answer

Connecting networks with different protocols

Answer

Converting data formats between packets

Answer

Boosting signals to increase network range

Question 56

Which network management tool is specifically designed to capture, analyze, and monitor network traffic for diagnosing and resolving network performance issues?

Accepted Answer

Network Analyzer

Answer

Configuration Manager

Answer

Fault Detection System

Answer

Performance Monitor

Question 57

Which layer in the TCP/IP model is responsible for managing the transmission and reception of data?

Accepted Answer

Transport

Answer

Application

Answer

Network Access

Answer

Data Link

Question 58

Which routing protocol is used to exchange routing information between autonomous systems (AS)?

Accepted Answer

BGP

Answer

TCP

Answer

UDP

Answer

HTTP

Question 59

A network with a subnet mask of 255.255.255.0 has how many usable host addresses?

Accepted Answer

254

Answer

126

Answer

510

Answer

1022

Question 60

Which network topology connects all devices to a central point, forming a star shape?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 61

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

Accepted Answer

To block unauthorized access to a network

Answer

To translate IP addresses

Answer

To route network traffic

Answer

To monitor network performance

Question 62

Which of the following is a key characteristic of a virtual private network (VPN)?

Accepted Answer

Provides secure and encrypted connections over public networks

Answer

Assigns private IP addresses to devices

Answer

Prevents access to malicious websites

Answer

Improves network performance

Question 63

Which of the following protocols provides reliable and sequenced data transmission?

Accepted Answer

TCP

Answer

UDP

Answer

ICMP

Answer

HTTP

Question 64

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

Accepted Answer

To monitor and manage network devices and resources

Answer

To provide network security protection

Answer

To design and implement network architectures

Answer

To troubleshoot and resolve network issues