A. set Flash Recovery Area
B. enable Flashback logging
C. create FLASHBACK tablespace
D. start the database in the ARCHIVELOG mode
E. start the database in the NOARCHIVELOG mode
第1题:
YouareworkingasaDBAatNetFxCorporation.YoudiscoverthattheSCOTTschemaisdeletedbymistake.Youdecidetoflashthedatabasebacktothetimewhentheschemaexisted.Whichviewwillyouquerytodeterminetheestimatedsizeoftheflashbackdatathatyourequireforyourcurrenttargetretention?()
A.V$FLASHBACK_DATABASE_LOG
B.V$FLASHBACK_DATABASE_STAT
C.V$DATABASE
D.V$UNDOSTAT
第2题:
At10:30A.M.,youranabatchjobbymistake,whichexecutedatransactioninthedatabase.Thetransactionidentifierofthetransactionthatmadetothechangesinthedatabaseis0500A00627B000.At11:10A.M.,youstoppedthebatchjob.Now,youwanttoidentifythechangesmadetothedatabasetablesbythebatchjob.Whichviewwillyouquery?()
A.DBA_PENDING_TRANSACTIONS
B.DBA_AUDIT_STATEMENT
C.V$FLASHBACK_DATABASE_STATS
D.FLASHBACK_TRANSACTION_QUERY
第3题:
YouaremaintainingtheSALESdatabaseforanorganization.YouhaveenabledtheFlashbackDatabasefeatureandwanttoestimatetheflashbackspacerequiredforfutureoperations.Whichviewwouldyouquerytoestimatetheflashbackspacerequired?()
A.V$DATABASE
B.V$FLASHBACK_DATABASE_STAT
C.V$FLASHBACK_DATABASE_LOG
D.V$RECOVERY_FILE_DEST
第4题:
FlashbackDatabaseisenabledinyourOracle10gdatabase.Oneofyourdatabaseuserserroneouslypurgedanimportanttableresidinginhisschema.Thetablewaspurgedsometimebetween10:00P.M.and10:30P.M.Thenextday,youdecidetoflashbackthedatabase.Beforeyouflashbackthedatabase,youwanttoensurethatyouhaveallthenecessaryflashbackdata.Whichdynamicperformanceviewmustyouusetodeterminewhetheryouhavetherequiredflashbackdatatorecoverthepurgedtable?()
A.V$DATABASE
B.V$UNDOSTAT
C.V$FLASHBACK_DATABASE_LOG
D.V$FLASHBACK_DATABASE_STAT
第5题:
A.QuerytheV$FLASHBACK_DATABASE_LOGview.
B.QuerytheV$FLASHBACK_DATABASE_STATview.
C.CheckthevalueoftheDB_FLASHBACK_RETENTION_TARGETinitializationparameter.
D.QuerytheV$RECOVERY_FILE_DESTview.
第6题:
A.Thetimewhenthelastflashbackoperationinyourdatabasewasperformed.
B.Thetimewhenthefirstflashbackoperationinyourdatabasewasperformed.
C.AlistofflashbackoperationsperformedinyourdatabaseusingSCNandtime.
D.Theapproximatetimeandthelowestsystemchangenumber(SCN)towhichyoucanflashbackyourdatabase.