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OSI Model

The Open Systems Interconnection Model

Layer NumberLayer NamePDUsDevices
Layer 1 Physical Bits Hubs
Layer 2 Data Link Frames Switch
Layer 3 Network Packets Router
Layer 4 Transport Segments Firewall
Layer 5 Session
Layer 6 Presentation
Layer 7 Application
Created by: PlaceholderAlex
Popular Computers sets

 

 



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