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1.5 LAYERS & PROTOCOLS (PROTOCOLS (Network protocols are sets of rules…
1.5 LAYERS & PROTOCOLS
IP ADDRESSES
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CLASS A : 0-127 ..... CLASS B: 128-191.......CLASS C:192-223......CLASS D: 224-239......CLASS E: 240-255
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PROTOCOLS
Network protocols are sets of rules that allow two computers or two networks to communicate ; TCP/IP
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LAYERS
As a packet is prepared the data travels through the layers of TCP/IP communication protocols which manage it
Application Layer
Contains all the apps that may wish to exchange data or files. Each app may use it's own protocol, but regardless the app layers job is to send this data to the transport layer
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Internet Layer
used to transport packets from the originating host across network boundaries, if necessary, to the destination host specified by an IP address
Network Interface
layer that provides data routing paths for network communication. Data is transferred in the form of packets via logical network paths in an ordered format controlled by the network layer.
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