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CCNA Notes (cont) : 27. Standard adopted for Ethernet CSMA/CD by IEEE Committee is 802.3. 100BaseT (Fast Ethernet) uses IEEE803.2u standard which incorporates CSMA/CD protocol. 28. DOD Model maps to OSI model as below:                           DoD Model OSI Model Process/ Application  maps Application, Presentation, Session layers (layers 7,6,5). Host-to-Host ISO's Transport layer (layer 4). Internet Network layer (layer 3) Network Access Data Link and Physical Layers (layers 6,7)