Quiz Entry - updated: 2026.07.14
What are the main protocol suites, and which one does the Internet run on?
TCP/IP (the Internet Protocol Suite) is the one the Internet runs on and has been dominant since the 1990s; OSI, AppleTalk, and Novell NetWare are largely legacy.
| Protocol Suite | Description |
|---|---|
| TCP/IP (Internet Protocol Suite) | The most common protocol suite; maintained by IETF |
| OSI Protocols | Developed by ISO and ITU; replaced by TCP/IP in most cases |
| AppleTalk | Proprietary suite by Apple Inc. (legacy) |
| Novell NetWare | Proprietary suite by Novell Inc. (legacy) |
TCP/IP is the protocol suite used by the Internet and has been the dominant protocol suite since the 1990s.
Go deeper:
Internet protocol suite — the suite the Internet actually runs on, with its history.- OSI protocols — the ISO/ITU suite that TCP/IP displaced.