Answer(s): A, C, E

Explanation:
QUESTION: 8
Which WebLogic optimization allows one non-XA resource to participate in a distributed
transaction?

A. enabling Pinned to Thread
B. enabling Logging Last Resource
C. increasing the Statement cache size
D. setting the statement cache type to LRU
E. setting the initial and maximum capacity to the same number

Answer(s): A
Explanation:
XA Affinity and Failover
When accessed within a global transaction, the member data source from which the
JDBC connection was obtained is pinned to the global transaction for the life of
the transaction. This ensures that all database operations performed on
connections obtained from the Multi Data Source, for a particular transaction, all
execute on the same RAC instance. XA affinity results in improved performance
and is even a requirement for older versions of RAC, such as prior to 11g.
The XA failover is also supported by the Multi Data Source and transaction
manager implementations. If a pinned RAC instance suffers a failure, then a global
transaction can complete utilizing a different RAC instance using a connection
obtained one of the other member data sources.

Reference: Oracle WebLogic Server Active GridLink for Oracle Real Application Clusters(RAC)
QUESTION: 9

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