An LTM device is serving an FTP virtual server that has three pool members. The FTP pool members are
monitored via TCP port 21. Customers are reporting that they are able to log in, but are sometimes unable
to upload files to the server.
Which monitor should the LTM Specialist configure to verify that the servers can handle file uploads?

A.
FTP

B.
Inband

C.
External

D.
Scripted

E.
Real Server