Tuesday, 24 April 2018

Title:Network Models

Research network models: OSI Model and TCP/IP.Provide the following:

OSI Model

Describe:
-OSI model stands for Open System Interconnection.
-A networking framework to implement protocols in layers,with control passed from one layer to the next.
-The networks divide into 7 layers.


Diagram:
OSI 7 layer:
Application:Provide access to available network resources
Presentation:Translate,encrypts and compress data
Session:Manages and terminates communicative sessions
Transport:Provides reliable process-to-process message delivery and error recovery
Network:Moves packets from source to destination providing internetworking capabilities
Data link:Organizes bits into frames providing node-to-node delivery
Physical:Transmits bits over a medium establishing mechanical and electrical specifications


TCP/IP

Describe:
-TCP/IP stands for Transmission Control Protocol/Internet Protocol.
-Set of networking protocols that allow two or more computers to communicate.


Diagram:

TCP/IP layer:
Application:Consist of applications/programs and processes that use the network
Transport:Provides end-to-end data delivery services
Internet:Defines the datagram and handles the routing of data
Link:Consist of routines for accessing physical medias



Definitions, O. and Hope, C. (2018). What is OSI?. [online] Computerhope.com. Available at: https://www.computerhope.com/jargon/o/osi.htm [Accessed 24 Apr. 2018].


vasanthimuniasamy (2013). Osi reference model. [online] Slideshare.net. Available at: https://www.slideshare.net/vasanthimuniasamy/osi-reference-model-27374402 [Accessed 24 Apr. 2018].



Study.com. (2018). Session Layer of the OSI Model: Functions, Protocols & Examples - Video & Lesson Transcript | Study.com. [online] Available at: https://study.com/academy/lesson/session-layer-of-the-osi-model-functions-protocols-examples.html [Accessed 25 Apr. 2018].


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