多項選擇題

You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）

A.set SQL_TRACE=True
B.set UNDO_RETENTION=14400
C.set FAST_START_MTTR_TARGET=240
D.set LOG_CHECKPOINT_INTERVAL=240
E.set DB_FLASHBACK_RETENTION_TARGET=14400
F.set the RETENTION GUARANTEE clause for the undo tablespace

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多項選擇題

Which two statements regarding the Policy Framework in Enterprise Manager (EM) are correct?（）

A.Policy violations are prioritized as High, Medium, or Informational by category
B.Policies can be disabled completely, or flagged as ignored, for the specified target
C.Policies can be flagged as ignored, but never completely disabled, for the specified target
D.Policy violations must be corrected, otherwise the database will shut down until corrective action occurs

單項選擇題

You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, you execute the following command on the ASM instance to shut down: SQL> shutdown immediate; What is the result of executing this command?（）

A.All the instances, including the ASM instance, are shut down in the ABORT mode
B.The ASM instance is shut down, but the other instances are still running
C.The ASM instance is still functional, but the other instances are shut down
D.All the instances, including the ASM instance, are shut down in the IMMEDIATE mode.
E.HRDB, FINDB, and ORGDB instances are shut down in the ABORT mode and the ASM instance is shut down in the IMMEDIATE mode
F.HRDB, FINDB, and ORGDB instances are shut down in the NORMAL mode and the ASM instance is shut down in the IMMEDIATE mode

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You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）

你可能感興趣的試題

Which two statements regarding the Policy Framework in Enterprise Manager (EM) are correct?（）

You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, you execute the following command on the ASM instance to shut down: SQL> shutdown immediate; What is the result of executing this command?（）

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