File Transfer Protocol (FTP) is a standard network protocol used to transfer files between a client and a server over the internet. It allows users to upload, download, and manage files on remote servers, making it essential for website management and data sharing. FTP operates on a client-server model, where the client initiates the connection to the server to access files. FTP can use different modes for data transfer, including active and passive modes, which determine how the connection is established. Security measures, such as FTPS and SFTP, enhance FTP by encrypting data during transmission, protecting sensitive information from unauthorized access.