elliot

What Is the (OSI) Model? (OSI) model is a conceptual framework that divides network communications functions into seven layers OSI Model Application presentation session Transport Provides the means for transmitting data between the two connected parties, as well as controlling the quality of service. The main protocols used here are TCP and UDP. Network DataLink Handles communications between devices on the same network. If layer 3 is like the address on a piece of mail,