In a design session, a colleague makes the following comments about cluster support for Oracle SOA Suite 11g application. Which two statements are correct?
A. A cluster appears to clients as multiple WebLogic Server instances
B. The server instances in a cluster must all run on the same machine.
C. You can scale a cluster by adding machines to the cluster to host additional server instances.
D. Server instances in a cluster can run different versions of WebLogic Server.
E. You can create it cluster by using WLST, the WebLogic Server Administration Console or Enterprise Manager Fusion Middleware Control.
F. For management purposes, you can split a cluster across multiple domains.