What type of remote Backup Destination are available inside the cPanel interface for your account?
This answer only applies to the cPanel interface and does not apply to the WHM Backup Feature.
By default, there are four connection types you can use when creating a 'Full Account Backup' inside the cPanel interface.
Log into the following page in your cPanel account:
cPanel: Home -> Files -> Backup --> Full Backup
Click the button 'Download a Full Account Backup'.
On the next page, you will find a pull-down menu under 'Backup Destination', it contains four options:
Remote FTP server
Remote FTP server (passive mode transfer)
Secure Copy (SCP)
For more information about the Backup Destination menu, you can find out more in our cPanel documentation.