Which protocol is associated with UDP port 514?

UDP port 514 is associated with the Syslog protocol, which is used for sending system log or event messages to a logging server. Syslog is widely utilized in network management and monitoring, allowing devices like routers, switches, and servers to communicate their status and error messages to a centralized log repository. This is particularly useful for troubleshooting, monitoring system performance, and maintaining security.

The reason Syslog uses UDP is that it provides a lightweight messaging service that doesn't require the overhead of establishing a reliable connection, which is particularly useful in high-volume logging environments where performance is a concern. In contrast, protocols like FTP and Telnet rely on TCP, which includes connection-oriented features such as error recovery and session management. DHCP is also a different protocol associated with dynamic IP address allocation and does not operate over UDP port 514. Thus, Syslog stands out as the correct association for UDP port 514.