The Purpose Of An OSI Model

The fifth layer is the session layer this establishes a connection,this layer makes and sets up the connection using co ordinates and could terminate conversations links. the session layer produces services that make authentication after an interruption and not only that but it can reconnect.and as well as the transporting layer it can also have the TCP and the UDP can provide services for all most all applications.An application layer is an abstraction layer that specifies the shared protocols and interface methods used by hosts in a communications network. The application layer abstraction is used in both of the standard models of computer networking; the Internet Protocol Suite (TCP/IP) and the Open Systems Interconnection model (OSI model).Although both models use the same term for their respective highest level layer, the detailed definitions and purposes are different.In TCP/IP, the application layer contains the communications protocols and interface methods used in process-to-process communications

10. Which of the following statements is true when comparing the OSI and the TCP/IP model as defined in RFC 1122? B) The lower four layers of TCP/IP define the same kinds of functions as the matching layer numbers from OSI.

The two parts of the TCP/IP are the: Transport Layer Protocol and the Network Layer Protocol aka TCP and IP. TCP is what links the application layer to the network layer. It also helps by segmenting the data, by breaking them down

OSI Model explains the transfer of data thru the network. The structure of the model help understands where some of the protocols in the network are functioning, operating with other workstations, servers, and switches. Mainly, I will explain how the protocols are functioning throughout each layer. Specific protocol functions and operations interpose two layers, knowing that part of their process start in one layer and continue in the next layer.

The OSI is divided into two groups, upper layers are 7-5 which handle application issues and are only implemented in software. The lower layers are 4-1 deals with issues caused by data transport. As stated above, the hospital’s network is segmented into two; layer 2, the data link layer, allows the bridge to connect multiple networks. This layer allows data to transmit between the networks which can possibly detect and correct any errors that may happen in the Layer 1, Physical Layer. When the hospital is transferring data between the systems, it takes many steps to complete. The data passes an application on a

One may wonder why the OSI model is so successful. The author believes that the OSI model’s manner of network-function organization is the cause of OSI’s great success: the model defines clearly each function that is essential in inter-computer communications, as well as the relationship between each of these functions. The author will further contend that the scope of OSI’s method of communication-functions organization is not limited to inter-computer communications. Rather, the model’s clear method of organizing the elements of a communications system is an efficient tool for analyzing the elements of any method of communication. The author will now demonstrate this point by evaluating the functionality of the Pony Express according to the layers of the Open Systems Interconnection reference model.

2. The seven Layers in the OSI model are Physical Layer, Link Layer, Network Layer, Transport Layer, Session Layer, Application Layer and the presentation Layer. Each layer has a specific function to perform and consist of different protocols. Physical layer is the lowest one and handles transmission and reception of messages over the medium. Then comes the link layer , it allows error free transmission of the data frames in the physical layer. The network layer takes care of processes like routing, traffic control and fragmentation of the data. The next one is the transport layer, it takes care of the

In spite of the way that the OSI demonstrate isn't the honest to goodness show used to help the Internet, its appreciation is indispensable a similar number of frameworks and things regularly suggest the OSI show for definition. It is moreover basic to take in the Internet Model (or DOD model or TCP/IP model) and its 4 layers: (Network) Interface, Network, Transport, and Application. The Internet show is the model used to help all activities on the Internet.

| d. A layer of the Open Systems Interconnection (OSI) model that frames upper-layer data and controls how data is placed on a medium

Transmission Control Protocol/Internet Protocol is the primary network communication, language since the mid-1990s. It can be passed down as a communications protocol in a private network. The TCP/IP is a two-layered protocol. The Transmission Control Protocol is the higher layer which administers the assembling of a message or file into smaller packets. These packets are transmitted over the Internet. The packets are amassed and reassembled into the primary message after being received by the TCP layer. The Internet Protocol is the lower layer. This layer monitors the address part of each packet so that it gets to the right destination. The TCP/IP establishes an intermediary between two hosts so that they can send messages back and forth for a period of time.

A nonroutable protocol does not operate in which layer of the OSI model? 
e. Network

The purpose of this lab is to familiarize the students with the TCP/IP Model and some of the protocols that are used in it.

In a nutshell, the OSI model is divided into seven layers that are responsible for moving data up and down the stack; from the user, all the way down to the physical layer where the cables reside and then back up again. Each layer uses its own protocols and is responsible for carrying out its assigned function. These layers include the Application Layer (layer 7), Presentation Layer (layer 6), Session Layer (layer 5), Transport Layer (layer 4), Network Layer (layer 3), Data Link Layer (layer 2) and the Physical Layer (layer 1). See Figure 3-3 for illustration of OSI model.

The OSI model was introduced in 1984. Although it was designed to be an abstract model, the OSI model remains a practical framework for today's key network technologies like Ethernet and protocols like IP.

The transmission control protocol/Internet protocol is used to transmit the data to hosts in network. This is used in network topology communication establishment and data transmission purpose. TCP/IP is a two layer protocol high layer is TCP and low layer is IP. Small packets data are transmitted by TCP and it gets small packets grouped and form original data. IP protocol forward these data to particular destination.