The OSI Model is a model (alike the TCP IP model)
| Layer Num | Also Known As | Examples |
|---|---|---|
| Layer 7 | Application | HTTP, POP3, IMAP… |
| Layer 6 | Presentation | |
| Layer 5 | Session | |
| Layer 4 | Transport | TCP, UDP |
| Layer 3 | Network | IPv4, IPv6 |
| Layer 2 | Data Link | Ethernet, WiFi, PPP |
| Layer 1 | Network | Ethernet, WiFi, 5G, Aloha |