A data file on one of your physical standby databases has been accidentally deleted and you must restore and recover it.All the archive logs required for recovery are still on disk in the directory pointed to by the log_archive_dest_1 parameter.Which three steps must be performed to restore the missing file and recover the standby database while it is in the MOUNT state?
You administer a Data Guard environment consisting of a primary and three physical standby databases.One physical standby database is used for disaster recovery, one is used for reporting, and one is used as a replica for testing.The standby database used for testing is occasionally converted into a snapshot standby database and then converted back to a physical standby.The physical standby database is the only standby that is a mandatory destination.The broker configuration operates in MAXIMUM PERFORMANCE mode.Which ARCHIVELOG DELETION POLICY should be set, so that archive logs generated on the primary database are not deleted before they are consumed appropriately on each of the standby databases, but which allows them to be deleted form the primary as soon as it is safe to do so?
Which four factors can influence the rate of SQL apply on a logical standby database?
Which two are true about database roles in an Oracle Data Guard Configuration?
There are currently 6 APPLIER and 6 PREPARER processes running and no idle APPLIER processes on your logical standby database.The MAX_SERVERS SQL apply parameter and number of archiver processes are both set to 12.Identify two changes, each of which would allow you to increase the number of APPLIER processes.
Which two statements are true for Data Guard environments with multi-tenant databases?
