Which two are prerequisites for configuring Transaction Guard in a Data Guard environment?
A.
Grant execute permission on the DBMS_APP_CONT package to relevant database schema owners.
B.
Ensure that connection descriptors for database clients use the failover clause with the COMMIT_OUTCOME parameter set to TRUE.
C.
Set INSTANCE_NAME identically on all the Data Guard Configuration databases and modify the local service name on the client to include a CONNECTION_LIST containing all the standby hosts.
D.
Create a database service with COMMIT_OUTCOME set to TRUE, and ensure clients use that service to connect to the database instance.
E.
Create a database service with COMMIT_OUTCOME set to TRUE and ensure that the service is statically registered with the default listener on the primary host.
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