Because the export file is in binary format, use a protocol that supports binary transfers to prevent corruption of the file when you transfer it across a network. For example, use FTP or a similar file transfer protocol to transmit the file in binary mode. Transmitting export files in character mode causes errors when the file is imported.
To use Export with Oracle Net, include the connection qualifier string
connect_string when entering the username and password in the
exp command. For the exact syntax of this clause, see the user's guide for your Oracle Net protocol.