The server responds with the number of times it has received that checksum.

The server will action the message (each message number has a specific meaning to the particular process) and respond with a return code.

Clients fall back to only if the server does not respond to .

The server responds with a list (taken from the server's database).

The server responds with all changes (as entered by the administrator) made between the client's versions and the latest version.

The server responds with the location for the primary replica of the respective chunk.

It was programmed to stop downloading if the server did not respond after a certain amount of time.

A Gopher+ server will respond with a status line followed by the content the client requested.

The server could be down or is not responding.

The server responds with a single datagram of length 4 containing the time.