单项选择题
A.7， 1， 5， 2， 3， 6， 4
B.1， 5， 7， 2， 3， 6； step 4 is not required
C.7， 1， 5， 2， 3， 6； step 4 is not requiredThis document was downloaded from =>> http：//www.amaderforum.com
D.1， 2， 3， 5， 6， 4； step 7 is not required
单项选择题 Your database instance is configured with automatic undo management and the UNDO_RETENTIONparameter is set to 900 seconds. You executed the following command to enable retention guarantee: SQL> ALTER TABLESPACE undotbs1 RETENTION GUARANTEE; What effect would this command have onthe database（）
单项选择题 Youwanttoenablearchivingonyourdatabase.Presently，thedatabaseisrunninginNOARCHIVELOGmode.Givenbelowarethestepstoaccomplishthetaskinrandomorder： 1.Shutdowntheinstance. 2.ExecutetheALTERDATABASEARCHIVELOGcommand. 3.Startuptheinstanceandmountthedatabase. 4.SettheDB_RECOVERY_FILE_DESTinitializationparameterto$ORACLE_HOME/dest_1. 5.Openthedatabase. Whichisthecorrectsequenceofstepsforaccomplishingthetask（）
单项选择题 WhichstatementistrueabouttheUNDO_RETENTIONparameterwhenretentionguaranteeisnotenabled（）