Junior
What are the differences between TCP and UDP protocols?
sobes.tech AI
Answer from AI
| Characteristic | TCP | UDP |
|---|---|---|
| Reliability | Guaranteed packet delivery | No guarantee of packet delivery |
| Connection establishment | Required (three-way handshake) | Not required |
| Packet order | Order is guaranteed | Packet order is not guaranteed |
| Error checking | Yes (retransmission, checksums) | Yes (checksums), no retransmission |
| Flow control | Yes (transmission rate control) | No |
| Congestion control | Yes (management mechanisms) | No |
| Header size | Larger (about 20 bytes) | Smaller (8 bytes) |
| Speed | Slower | Faster |
| Application | HTTP, FTP, SSH, Email | DNS, DHCP, VoIP, online gaming |