In networking, a is a formatted unit of data carried by a packet-switched network.

FTP has been in use since the early days of the internet and remains a widely used protocol for file transfer across .

A defines the technical specifications for hardware and software in networking.

Protocols are important because they establish a common for communication between different devices.

The layer of the OSI model is responsible for segmenting and reassembling data.

TCP uses flow control and congestion mechanisms.

FTP operates on a client-server architecture where clients initiate a to the server to transfer files.

UDP stands for User Datagram .