Integration between _______ multidata sources and _____ is defined as the Grid Link for RAC.
A.
Oracle WebLogic Server; Oracle Database
B.
Oracle WebLogic Server clusters; Oracle Database
C.
Oracle WebLogic Server clusters; Oracle Database RAC
D.
Oracle OC4J; Oracle Database RAC
E.
Oracle WebLogic Server; Oracle OC4J
Explanation:
The WebLogic Server JDBC subsystem has supported Oracle RAC since WLS
version 8.1 SP5, originally developed for Oracle9i RAC. This support is based on a
particular type of data source configuration, called a multi data source. A multi data
source is a data source abstraction over one or more individual data sources. It
serves JDBC connections from each of the member data sources according to a
specified policy2. A RAC multi data source configuration requires that each
member data source obtain connections to a particular RAC instance, as illustrated
in the following diagram of a three-node RAC cluster configuration.Reference: Oracle WebLogic Server Active GridLink for Oracle Real Application Clusters(RAC)
