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...Introduction the international standard organisation iso covers all aspects of network communication in open system interconnection model osi is a an layered frame work that allows for across types computer purpose each layer to offer certain services higher layers rules and conventions used this conversation are collectively known as n protocol specify how link should be established maintained released architecture fig reference there seven performs unique specific task it offers above on uses series protocols perform functions assigned at top stack application bottom physical medium which actually connects computers form interface host r b...