Computer Networks: Master the Fundamentals of Network Systems

Question 1

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

Accepted Answer

Physical

Answer

Data Link

Answer

Network

Answer

Application

Question 2

Within the TCP/IP model, which protocol is tasked with establishing and maintaining a dependable connection between two hosts on a network?

Accepted Answer

TCP

Answer

UDP

Answer

HTTP

Answer

DHCP

Question 3

Within the OSI model, which layer is responsible for addressing and routing packets, facilitating communication across networks?

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Physical layer

Question 4

Which element is fundamental to the Transmission Control Protocol/Internet Protocol (TCP/IP) model?

Accepted Answer

Internet Protocol (IP)

Answer

Virtual Local Area Network (VLAN)

Answer

Hypertext Transfer Protocol (HTTP)

Answer

Point-to-Point Protocol (PPP)

Question 5

Which layer is **not** part of the TCP/IP model?

Accepted Answer

Session

Answer

Application

Answer

Transport

Answer

Network

Question 6

Within the OSI model, which layer is responsible for ensuring reliable data delivery and managing data flow between network endpoints?

Accepted Answer

Transport Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Application Layer

Question 7

Within the OSI model, which layer is tasked with directing data packets across networks?

Accepted Answer

Network Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Transport Layer

Question 8

In the OSI model, which layer manages the establishment and maintenance of connections between devices?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 9

Which network topology features a central device directly connected to all other devices on the network?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 10

Within the TCP/IP model, which layer is responsible for ensuring reliable and sequential data delivery between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Session Layer

Answer

Network Layer

Question 11

Within the TCP/IP model, which layer is responsible for ensuring reliable data transmission between endpoints?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 12

Within the TCP/IP model, which layer is tasked with routing data packets across diverse networks?

Accepted Answer

Internet

Answer

Application

Answer

Transport

Answer

Network Access

Question 13

Within the TCP/IP model, which layer is tasked with managing the initiation and termination of network connections between hosts?

Accepted Answer

Transport layer

Answer

Application layer

Answer

Network layer

Answer

Data link layer

Question 14

In the TCP/IP model, which layer is tasked with establishing and sustaining connections between hosts?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 15

In the TCP/IP model, which layer handles addressing and routing of data?

Accepted Answer

Network Layer

Answer

Data Link Layer

Answer

Transport Layer

Answer

Application Layer

Question 16

Within the TCP/IP model, which layer is tasked with establishing and maintaining connections between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 17

Within the TCP/IP model, which layer is tasked with determining the path that packets traverse across a network?

Accepted Answer

Network Layer

Answer

Application Layer

Answer

Transport Layer

Answer

Data Link Layer

Question 18

Within the TCP/IP model, which layer is responsible for establishing and maintaining reliable connections between network hosts?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 19

What is a primary distinction between the OSI and TCP/IP models in terms of their layer structures?

Accepted Answer

The OSI model has seven layers, while the TCP/IP model has five.

Answer

The OSI model is theoretical, while the TCP/IP model is practical.

Answer

The OSI model is primarily used for network design, while the TCP/IP model is mainly employed for network management.

Answer

The OSI model offers superior security compared to the TCP/IP model.

Question 20

In the TCP/IP model, which layer handles the establishment and maintenance of network connections?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 21

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

Accepted Answer

All devices share a single connection.

Answer

Devices connect to each other in a chain.

Answer

Devices connect to each other in a star shape.

Answer

Devices connect to each other in a ring shape.

Question 22

In computer networks, what concept defines the physical arrangement and connections between devices?

Accepted Answer

Network topology

Answer

Network architecture

Answer

Routing protocol

Answer

Network security

Question 23

In the TCP/IP model, which layer is responsible for ensuring reliable and connection-oriented data transmission?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 24

Within the OSI model, which layer is tasked with directing packets across a network?

Accepted Answer

Network Layer

Answer

Transport Layer

Answer

Application Layer

Answer

Physical Layer

Question 25

Within the OSI model, which layer is tasked with ensuring reliable data exchange between two end-systems?

Accepted Answer

Transport Layer

Answer

Network Layer

Answer

Application Layer

Answer

Data Link Layer

Question 26

Identify the characteristic that accurately describes the TCP protocol from the options below:

Accepted Answer

Connection-oriented

Answer

Connectionless

Answer

Datagram-based

Answer

Best-effort delivery

Question 27

In the OSI model, which layer directly serves user applications?

Accepted Answer

Application

Answer

Session

Answer

Data Link

Question 28

Within the OSI model, which layer is responsible for establishing and managing network connections?

Accepted Answer

Transport

Answer

Application

Question 29

In the OSI model, which layer is responsible for establishing, maintaining, and ending connections between network devices?

Accepted Answer

Data Link Layer

Answer

Physical Layer

Answer

Network Layer

Answer

Application Layer

Question 30

In the OSI model, which layer is responsible for setting up and maintaining network connections by defining the route for data packets to traverse the network?

Accepted Answer

Network Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Transport Layer

Question 31

In the OSI model, which layer handles the logical addressing and routing of data packets across networks?

Accepted Answer

Network Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Transport Layer

Question 32

Which layer is absent from the TCP/IP model?

Accepted Answer

Session

Answer

Application

Answer

Transport

Answer

Network

Question 33

Within the TCP/IP model, which layer is specifically tasked with directing packets to their intended destinations?

Accepted Answer

Network layer

Answer

Application layer

Answer

Transport layer

Answer

Data link layer

Question 34

In network performance analysis, which metric measures the efficiency of the network's performance?

Accepted Answer

Throughput

Answer

Energy consumption

Answer

Average response time

Answer

Packet loss

Question 35

Which metric is used to measure the data transfer rate across a network within a given time frame?

Accepted Answer

Throughput

Answer

Latency

Answer

Packet loss

Question 36

Which firewall type operates at the OSI model's application layer, offering fine-grained control and security by inspecting network traffic based on specific criteria?

Accepted Answer

Application layer firewall

Answer

Stateful firewall

Answer

Packet-filtering firewall

Question 37

In the OSI model, which layer is responsible for ensuring reliable end-to-end data transfer and error recovery?

Accepted Answer

Transport Layer

Answer

Data Link Layer

Answer

Network Layer

Question 38

What is a primary advantage of using cloud computing in computer networks?

Accepted Answer

Lower infrastructure and maintenance expenses

Answer

Enhanced data security and protection

Answer

Limited scalability and adaptability

Question 39

Within the TCP/IP model, which layer is responsible for handling error checking and flow control during data transmission?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 40

In network virtualization, which technology allows for the logical separation of network resources from the physical infrastructure?

Accepted Answer

Software-Defined Networking (SDN)

Answer

Network Function Virtualization (NFV)

Answer

Virtual Private Networks (VPNs)

Answer

Cloud Computing

Question 41

Within the TCP/IP model, which layer is tasked with establishing and maintaining connections between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 42

Which of the following metrics are essential for evaluating the efficiency of a network?

Accepted Answer

Throughput

Accepted Answer

Latency

Accepted Answer

Packet Loss

Answer

Signal Strength

Question 43

To protect data privacy and integrity during transmission over public networks, which technique is commonly used?

Accepted Answer

Encryption

Answer

IPv4 Addressing

Answer

IP Routing

Question 44

Within the TCP/IP model, which layer is tasked with managing connections between network devices, including establishing, maintaining, and terminating them?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Question 45

In managing large networks, which software tool is primarily used to monitor and control network devices, enabling efficient network management and troubleshooting?

Accepted Answer

Network Management System (NMS)

Answer

Network Simulator

Answer

Packet Analyzer

Answer

Network Emulator

Question 46

Within the OSI model, which layer manages the establishment, maintenance, and termination of network connections between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 47

Within the TCP/IP model, which layer is responsible for establishing and maintaining connections between devices, ensuring reliable data transmission?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 48

In the TCP/IP model, which layer is primarily responsible for ensuring reliable data delivery over a network by implementing error and flow control mechanisms?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 49

Within the TCP/IP model, which layer is tasked with routing packets across networks based on their IP addresses?

Accepted Answer

Network Layer

Answer

Application Layer

Answer

Transport Layer

Answer

Data Link Layer

Question 50

In software-defined networking (SDN), which component is crucial for network control and programmability, enabling coordination and management of network devices?

Accepted Answer

Network Controller

Answer

Virtual Switch

Answer

Hypervisor

Answer

Firewall

Question 51

In layered network architecture models like OSI or TCP/IP, which of the following is NOT an advantage of using a layered approach?

Accepted Answer

Complexity in network management

Answer

Enhanced network security

Answer

Increased network efficiency

Answer

Ease in network management

Question 52

In the TCP/IP networking model, which layer is responsible for managing connections between devices?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Question 53

Which OSI model layer is responsible for managing network connections, ensuring their establishment, maintenance, and termination?

Accepted Answer

Transport

Answer

Application

Answer

Network

Answer

Data Link

Question 54

Within the Open Systems Interconnection (OSI) Model, which layer ensures the reliable transmission of data from sender to receiver?

Accepted Answer

Transport Layer

Answer

Physical Layer

Answer

Network Layer

Question 55

Within the OSI model, which layer is responsible for ensuring reliable data transfer between two hosts on a network?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network Layer

Answer

Data Link Layer

Question 56

In the TCP/IP model, which layer is primarily responsible for providing application-specific services?

Accepted Answer

Application Layer

Answer

Data Link Layer

Answer

Network Layer

Answer

Transport Layer

Question 57

How does a firewall enhance network security?

Accepted Answer

Blocks unauthorized access by filtering traffic based on rules.

Answer

Encrypts network traffic for data protection.

Answer

Monitors traffic for suspicious activity and responds to threats.

Answer

Optimizes traffic flow to improve network performance.

Question 58

Within the Open Systems Interconnection (OSI) model, which layer is responsible for determining the most efficient path for data transmission across a network, ensuring optimal delivery?

Accepted Answer

Network Layer

Answer

Physical Layer

Answer

Data Link Layer

Answer

Application Layer

Question 59

Which protocol is used primarily for exchanging error reports and control messages between network devices during troubleshooting and diagnostics?

Accepted Answer

ICMP

Answer

TCP

Answer

UDP

Answer

HTTP

Question 60

To protect data confidentiality and integrity during network transmission, which encryption technique is commonly employed?

Accepted Answer

IPSec

Answer

ARP

Answer

TCP

Answer

DHCP

Question 61

In the OSI model, which layer ensures reliable end-to-end data transfer?

Accepted Answer

Transport Layer

Answer

Application Layer

Answer

Network layer

Answer

Data Link Layer

Question 62

Which routing algorithm uses decentralized distance vectors to determine optimal paths to destinations?

Accepted Answer

Distance Vector Routing

Answer

Dijkstra's Algorithm

Answer

Bellman-Ford Algorithm

Answer

Link-State Routing

Question 63

What network security mechanism employs encryption to safeguard data confidentiality during transmission?

Accepted Answer

Encryption

Answer

Firewall

Answer

Intrusion Detection System

Answer

Virtual Private Network

Question 64

Which performance metric quantifies the time taken for a packet to traverse from a source to a destination?

Accepted Answer

Latency

Answer

Bandwidth

Answer

Jitter

Answer

Packet Loss