Correct option is B
FTP stands for File Transfer Protocol. It is a standard network protocol used to transfer files between a client and a server on a computer network. FTP allows users to upload, download, and manage files on remote servers, and it operates over TCP/IP networks like the Internet.
Important Key Points:
1. FTP Usage - FTP is used for transferring files over a network, typically between a client and a server.
2. Modes of Transfer - FTP supports two main modes: active and passive mode, providing flexibility in connection.
3. Port Numbers - By default, FTP operates on port 21 for command and control, while data is transferred through separate data channels.
4. Security Limitations - FTP is not secure by itself; passwords and data are transferred in plain text unless additional security layers like FTPS (FTP Secure) or SFTP (SSH File Transfer Protocol) are used.
Knowledge Booster:
• File Translation Protocol (option a) is incorrect; there is no such protocol with this name.
• Pile Transaction Protocol (option c) is also incorrect and is not a known protocol in computer networking.