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Application Layers - Network Layer The network layer...

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Application Layer The application layer interacts with software applications that implement components. The application layer controls the interactions between the application and the network. The application layer interacts with the software, and determines if resources are available and synchronizes communication. Presentation Layer The presentation layer adds a header, which contains requests and information, it delivers and formats the information, it is responsible for formatting data for one system to be used on another system. Session Layer The session layer adds another header, and provides a process for opening, closing, and managing sessions, between applications. The session layer allows the two applications to exchange data. Transport Layer The transport layer provides end-to-end communication, it makes sure the data arrives intact, it also provides an error checking process, it divides data into smaller packets to be sent.
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Unformatted text preview: Network Layer The network layer handles packets from a number of sources and determines the final destination, it makes sure the packets are sent to the correct addresses, it selects routes and checks the quality of service. Data Link Layer The data link layer encapsulates messages into frames at the physical layer, this layer labels data with a MAC address to make sure Physical Layer In the physical layer the data is physically moved across the network interface, it transforms data from bits into data that can be sent over the network. References http://en.wikipedia.org/wiki/Data_link_layer http://en.wikipedia.org/wiki/Physical_layer http://en.wikipedia.org/wiki/Network_layer http://en.wikipedia.org/wiki/Transport_layer http://en.wikipedia.org/wiki/Session_layer http://en.wikipedia.org/wiki/Presentaion_layer http://en.wikipedia.org/wiki/Application_layer Patrick Regan (2006). Local Area Networks...
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