| Sr. No. | TCP/IP Reference Model | OSI Reference Model |
| 1 | Defined after the advent of Internet | Defined before advent of internet |
| 2 | Service interface and protocols were not clearly distinguished before | Service interface and protocols are clearly distinguished |
| 3 | TCP/IP supports Internet working | Internet working not supported |
| 4 | Loosely layered | Strict layering |
| 5 | Protocol Dependent standard | Protocol independent standard |
| 6 | More Credible | Less Credible |
| 7 | TCP reliably delivers packets, IP does not reliably deliver packets | All packets are reliably delivered |
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