Which UDP port is used for TFTP services?

TFTP, or Trivial File Transfer Protocol, uses UDP port 69 for its services. This is a standardized port defined for TFTP communication, which is a simple file transfer protocol often used for transferring files within a local network or to network devices that may not have an operating system capable of handling more complex file transfer protocols.

The choice of UDP is important as TFTP does not require the overhead associated with connection-oriented protocols like TCP. It allows for fast and efficient file transfers, albeit with no reliability mechanisms such as error correction, resulting in a protocol suited for scenarios where speed is prioritized over reliability, like when booting diskless workstations or downloading configurations to routers.

The other ports listed are associated with different services. Port 67 is used for the Bootstrap Protocol (BOOTP), and port 68 is used for managing client requests in BOOTP operations. Port 70 is typically used for Gopher, an early Internet protocol for distributing, searching, and retrieving documents. Thus, recognizing the specific port number associated with TFTP is essential for configuring or troubleshooting file transfer applications within a network environment.