Full form: Trivial File Transfer Protocol
Also known as: Trivial File Transfer Protocol
Quick Definition
A simple UDP-based file transfer protocol used to backup and restore Cisco IOS images and configs.
TFTP is a lightweight file transfer protocol (RFC 1350) that operates over UDP port 69. It is commonly used to transfer IOS images, configuration files, and other data between Cisco devices and a TFTP server. TFTP has no authentication, no directory listing, and no encryption — it is designed for simple, trusted network transfers, not production file sharing.
copy running-config tftp ! backup config to TFTP copy tftp flash: ! restore IOS image from TFTP
TFTP uses UDP (port 69), not TCP. It has no authentication and is not secure. It is appropriate for network management tasks on trusted networks but should not be used over the Internet.
TFTP is a lightweight file transfer protocol (RFC 1350) that operates over UDP port 69. It is commonly used to transfer IOS images, configuration files, and other data between Cisco devices and a TFTP server. TFTP has no authentication, no directory listing, and no encryption — it is designed for simple, trusted network transfers, not production file sharing.
TFTP uses UDP (port 69), not TCP. It has no authentication and is not secure. It is appropriate for network management tasks on trusted networks but should not be used over the Internet.
TFTP falls under the IP Services domain of the 200-301 exam. Understanding it in context with related terms like ftp and udp is essential for answering scenario-based questions correctly.