单项选择题
You enabled the flashback logging feature， but you have not specified the location of the flash recovery area. Which location would be used as the default location for the flash recovery area？（）
A. The location used for control files.
B. The location used for redo log files.
C. The location set by using $ORACLE_BASE
D. The location set by using $ORACLE_HOME
E. The location set by using CORE_DUMP_DEST
F. The location set by using BACKGROUND_DUMP_DEST
相关考题
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单项选择题
Considerthefollowingcommandtocreateatablespaceinyourproductiondatabase（whichisusinganAutomaticStorageManagement[ASM]instancetomanagethedatabasefiles）：CREATETABLESPACEuser_tbspDATAFILE’+dgroup3（usder_temp）/user_files/user_tbsp’SIZE200M；Whatwouldbetheresultofthiscommand？（）
A. It would result in an error because the template cannot be used along with the disk group.
B. It would result in an error because the path cannot be specified while creating a tablespace in a disk group.
C. It would create a tablespace with a data file that has an alias， and its attributes are set by the user-defined template.
D. It would create a tablespace with a data file that does not have an alias， and its attributes are set by the user-defined template. -
单项选择题
Amediafailurehasoccurred.Thishasresultedinallthemembersofthenexthoploggroupbeingrenderedinaccessibletothelogwriterprocess（LGWR）atalogswitch.Howdoesthisfailureaffecttheoperationaldatabase？（）
A. The database re-created the missing redo log files automatically.
B. The database continues to function normally with the existing files.
C. The database allows only queries， no other statements are allowed.
D. The database returns and error and the database instance shuts down.
E. The user sessions that generate redo logs are terminated automatically. -
单项选择题
Inyourtestdatabase，youhavecreatedtheORDERStableasanindex-organizedtable（IOT）.Tofacilitatefasterquerying，youhavecreatedamappingtableandabitmapindexontheORDER_FILLEDcolumn.Youobservethatthequeryperformancedegreeswhenusersperformalargevolumeoftransactions.Whileinvestigatingthereason，youfindthatthemappingtablesegmentisfragmented，leadingtopoorperformance.Whichoptionwouldyouusetodefragmentthemappingtablewithoutaffectingtheoriginaltabledata？（）
A. Export and import the mapping table.
B. Drop and re-create the mapping table.
C. Truncate the mapping table and reinsert the values.
D. Use the ALTER TABLE .. REBUILD command to defragment the mapping table.
