Which of the following is typical for FTP usage?

FTP, or File Transfer Protocol, is specifically designed for transferring files over a network. Its primary function is to facilitate the uploading and downloading of files between a client and a server, making it an ideal choice for tasks such as transferring web pages, large datasets, and software applications.

The protocol establishes a connection between the user's computer and a remote server, allowing users to send files to the server (upload) or retrieve files from it (download). This functionality is distinct from other options listed, as FTP does not support sending emails, instant messaging, or social networking activities, which involve different protocols and methods of communication. Therefore, the focus on file transfer makes the answer related to uploading and downloading files the correct choice in the context of typical FTP usage.