Reliable vs. Best-Effort Comparison
UDP Characteristic
- Operates at Transport Layer of OSI and TCP/IP model
- Provides applications with access to the network layer without the overhead of reliability mechanisms
- Is a connectionless protocol
- Provides limited error checking
- Provides best-effort delivery
- Has no data-recovery features
TCP Characteristic
- Transport layer of the TCP/IP stack
- Access to the network layer for applications
- Connection-oriented protocol
- Error Correction
- Sequencing of data packets
- Acknowledgement of receipt
- Data-recovery features
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