TCP/IP Model :
| Layer | Layer Namer | Process |
| 1 | Access Layer (Physical + Data Link Layer) | It looks out for hardware addressing and the protocols present in this layer allows for the physical transmission of data |
| 2 | Network layer (Internet layer) | deals with packets and connects independent networks to transport the packets across network boundaries. |
| 3 | Transport layer : uses TCP or UDP | maintaining end-to-end communications across the network. TCP/UDP – communications between hosts and provides flow control |
| 4 | Application layer(Session + Presentation + Application Layers) | It is responsible for node-to-node communication and controls user-interface specifications.→ HTTP, FTP,SSH….more |