What are the layers of the OSI model?
1 Physical, 2 Data Link, 3 Network, 4 Transport, 5 Session, 6 Presentation, 7 Application. Switches work at layer 2 (MAC), routers at layer 3 (IP), TCP/UDP at layer 4.
1 Physical, 2 Data Link, 3 Network, 4 Transport, 5 Session, 6 Presentation, 7 Application. Switches work at layer 2 (MAC), routers at layer 3 (IP), TCP/UDP at layer 4.