Which of the following statement is true about compatibility security in WebLogic Server?

Which of the following statement is true about compatibility security in WebLogic Server?

A.
It is necessary for communication between WebLogic 10.x server and servers prior to the
WebLogic10.x version.

B.
It is necessary for interoperability between two 10.x servers.

C.
It is necessary to run security configuration developed under WebLogic Server 6.x in the
WebLogic server 10.x.

D.
Once you configure SSL, the normal listen port will be disabled and cannot be used while the
SSL port is enabled.