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[单选] You have a master-detail relationship in the EMPLOYEE form module. You set the Delete Record Behavior property to Cascading. When a user deletes a master record, how does Forms implement the cascade-delete foreign-key rule? ()

A . With a Pre-Delete trigger. 
B . With an On-Delete trigger. 
C . With a Post-Delete trigger. 
D . With the On-Check-Delete-Master trigger.

In your production database, you have multiple resource plan directives that refer to the customer group DB_GRP. Which two statements are correct? ()  The parallel degree limit for DB_GRP will be the minimum of all the incoming values.。  The parallel degree limit for DB_GRP will be the maximum of all the incoming values.。  The maximum estimated execution time for DB_GRP would be the most nonrestrictive of all incoming values.。  If a session switched from the DB_GRP consumer group to another consumer group because it exceeded the prescribed switch time, then that session would not execute if the active session pool for the new consumer group was full.。  Is a session switched from the DB_GRP consumer group to another consumer group because it exceeded the prescribed switch time, then that session would execute even if the active session pool for the new consumer group was full.。 园林树木的配植原则 Which two statements are true about the Oracle Direct Network File system (DNFS)?() It utilizes the OS file system cache.。 A traditional NFS mount is not required when using Direct NFS.。 Oracle Disk Manager can manage NFS on its own, without using the operating kernel NFS driver.。 Direct NFS is available only in UNIX platforms.。 Direct NFS can load-balance I/O traffic across multiple network adapters.。 Which two statements are true about the Automatic Database Diagnostic Monitor (ADDM)() The ADDM requires at least four AWR snapshots for analysis.。 The ADDM runs after each AWR snapshot is collected automatically by MMON.。 The results of the ADDM analysis are stored in the Automatic Workload Repository (AWR).。 The ADDM analysis provides only diagnostic information but does not provide recommendations.。 The ADDM calls other advisors if required, but does not provide recommendations about the advisors.。 均衡充电终期电压为2.23~2.25V/单体。若连续()电压不变,则电池组电量已充足。 1h。 2h。 3h。 4h。 You have a master-detail relationship in the EMPLOYEE form module. You set the Delete Record Behavior property to Cascading. When a user deletes a master record, how does Forms implement the cascade-delete foreign-key rule? ()
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