单项选择题 Youhavearead-onlytablespaceonread-onlymedia.Youwanttoperformamediarecoveryontheexistingdatafiles，butusingabackupcontrolfile.Thebackupcontrolfileindicatesthatthestatusoftheread-onlytablespacewasread/writewhenthecontrolfilewasbackedup.Whatshouldyouconsider？（）

单项选择题 You want to create a consumer group， GROUP1， and you execute the following command in the command-line interface：  SQL> EXEC DBMS_RESOURCE_MANAGER.CREATE_CONSUMER_GROUP （CONSUMER_GROUP =>’group1’，  COMMENT => ’New Group’）；  This command errors out displaying the following message：  ERROR at line 1：  ORA-29371： pending area is not active  ORA-06512： at "SYS.DBMS_RMIN"， line 115  ORA-06512： at "SYS.DBMS_RESOURCE_MANAGER"， line 108  ORA-06512： at line 1  What action would you take to overcome this error？（）

单项选择题 YouneedtocreateaschedulethatwillrunajobonthesecondFridayofeachmonth.Whatshouldtherepeatintervaloftheschedulebesetto？（）