FTP has many commands such as to get, put, ls, dir, LCD, mkdir, rmdir, delete, help, close, cd, etc., that can run and lists directories. TFTP can only transfer files upto the size of a terabyte. TFTP can fit into a diskless workstation also. On the other hand, TFTP uses a UDP port, an open port hence, it is a connectionless service. FTP is a connection-oriented service as it uses TCP ports for secure file transfer. Therefore it is advisable that to transfer files over remote servers instead of over the internet while using TFTP. Hence it provides security, whereas being an open protocol TFTP, there are no authentication and encryption methods hence it does not provide security. FTP requires authentication, which the user implements. It is useful for sharing a small amount of data. Initially, TFTP also used for computers or routers booting. 
Whereas Trivial File Transfer Protocol which is known as TFTP also used to share files over the network.
File Transfer Protocol, also called FTP and Trivial File Transfer Protocol, known as the TFTP area network protocol, is used to exchange files over a TCP/IP (Transmission Control Protocol and the Internet Protocol) network. FTP is based on RFC 959, with safety measures from other RFCs. Since then, the operating systems have created many graphical user interface (GUI) customers, making uploading and downloading documents easier for the user. The first FTP client applications used the DOS command prompt with standardized commands and syntax. Anonymous FTP helps users access Internet files, programs, and other data without user identification or password. What is FTP?įile Transfer Protocol (FTP) is a client and server protocol used to transfer or exchange documents with a host computer. The files are transferred between the client and the server by TFTP on UDP port 69 only with a single link. There are several comparisons between FTP and TFTP, yet the key difference between FTP and TFTP is that FTP sets two connections, which are TCP’s port 20 for the data connection, and port 21 for the control connection, for file transfers between the client and the server. As compare to TFTP, the FTP is more complex. Both are used to pass a file between server to client or client to server. Both FTP and TFTP are application layer protocols. The Trivial File Transfer Protocol (TFTP) is a network protocol used for the transmission of documents. File Transfer Protocol (FTP) is a network protocol that exchanges files over the TCP/IP network – the Transmission Control Protocol and the Internet. 
The following article provides an overview of FTP vs TFTP.
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