OSI MODEL Diagram explained, Study notes of Computer science

Download OSI MODEL Diagram explained and more Study notes Computer science in PDF only on Docsity! Hammaad Hayat Produce a diagram and explain data transfer to node systems outer Frewall Data Transfer Diagram Hammaad Hayat v Computer Privat IP Astras s9248621 Bie Bis Roane Layer 3 Device DHE, IAP an NAT Switch Layer 2 Device Hac ard LLC Sao | * Publ: network I Firstly, as the data flow happens when the server and the computer are connected in a network. The application running on the server creates some data something that people can read here, which occurs at the Application (layer 7). In addition, at the (layer 6) presentation layer, the application will have encryption to that data. Afterwards, you arrive at layer 5 which is called the session layer. Here it directs network traffic as Traffic cop and establishes the connection between the devices. However, the information is still one big chunk of data. While the data goes down to the Transport Layer (layer 6), which breaks into smaller blocks of data called Segments. It is broken down by TCP (Transmission Control Protocol), which is used to guarantee that all the data is received and in order. Also, they are responsible for breaking down data. Each segment gets its own port number to know which upper layer application needs to receive the data on the destination device.