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OSI Model and TCP/IP Model: A Comparison

List the layers of the OSI model and the TCP/IP protocol suite, correlate the layers of the OSI to the TCP/IP protocol suite, identify the network support and user support layers in TCP/IP, explain data encapsulation, describe the responsibilities of the Data Link layer, compare Network layer and Transport layer delivery, discuss the need for error detection at the Transport layer, outline the responsibilities of the Network and Transport layers, differentiate between port address, logical address, and physical address, list services provided by the Application layer, and explain the advantages of combining Session, Presentation, and Application layers in TCP/IP.

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Added on  2023-04-25

About This Document

This document provides a comparison between OSI Model and TCP/IP Model. It discusses the layers, functions, and services provided by each model. The document also explains the benefits of combining the presentation, application, and session layers of OSI Model to one layer of TCP/IP protocol suite. The references used in this document are Networking self-teaching guide: OSI, TCP/IP, LANs, MANs, WANs, implementation, management, and maintenance, TCP-IP Model in Data Communication and Networking, and The Internet in IoT—OSI, TCP/IP, IPv4, IPv6 and Internet Routing.

OSI Model and TCP/IP Model: A Comparison

List the layers of the OSI model and the TCP/IP protocol suite, correlate the layers of the OSI to the TCP/IP protocol suite, identify the network support and user support layers in TCP/IP, explain data encapsulation, describe the responsibilities of the Data Link layer, compare Network layer and Transport layer delivery, discuss the need for error detection at the Transport layer, outline the responsibilities of the Network and Transport layers, differentiate between port address, logical address, and physical address, list services provided by the Application layer, and explain the advantages of combining Session, Presentation, and Application layers in TCP/IP.

   Added on 2023-04-25

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Running head: ASSIGNMENT 1
ASSIGNMENT 1
Name of Student
Name of University
Author’s Note
OSI Model and TCP/IP Model: A Comparison_1
1ASSIGNMENT 1
Assignment 1
1. OSI model consists of seven layers, they are data link layer, physical layer,
application layer, session layer, presentation layer, transport layer and network layer.
The TCP/IP model consists of five layers, they are physical, application, data
link, transport and network layer.
2. The three layers of OSI model named physical, data link and network layer are
combined to form application layer in TCP/IP model (Edwards & Bramante, 2015).
The characteristics of transport and network layer in OSI layer are related to transport
and internet layers of TCP/IP model. The interface layer of TCP/IP model is formed
by combining the data link and physical layers of OSI model.
3. The layer named application layer is considered as a support layer and data link,
physical and network layers are called user support layers in TCP/IP model.
4. In the model of TCP/IP when a data packet travels, protocol of every layer adds up or
removes some parts from header (Rayes & Salam, 2017). When another protocol
provides data to the header, it is called encapsulation.
5. Data link layer detects errors during any transmission, it provides an interface to the
network layer along with controlling data flow. It ensures that data is transmitted
without errors.
6. The delivery done by network layer is usually from one host to another and the
delivery done by transport layer is generally between processes.
7. A separate checking mechanism must be included because routers might not be
always perfect and it is responsible for avoid bit flips (Huang & Cai, 2018). Besides
this double checking would ensure that there is no error between different nodes.
8. Network layer performs various functions such as delivering information in clusters
called packets. The packets are distributed among hosts. This layer is also utilized
OSI Model and TCP/IP Model: A Comparison_2

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