单项选择题
You are managing an Oracle Database 10g database that uses Oracle Managed Files （OMF）. You enabled the block change tracking feature for the database. Which statement regarding the change tracking file is true？（）
A. One block change tracking file is created for each data file. By default， the file is created in DB_CREATE_FILE_DEST.
B. One block change tracking file is created for each data file. By default， the file is created in BACKGROUND_DUMP_DEST.
C. One block change tracking file is created for the database. By default， the file is created in DB_CREATE_FILE_DEST.
D. One block change tracking file is created for the database. By default， the file is created in BACKGROUND_DUMP_DEST.
相关考题
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单项选择题
You execute the following command to enable a session in resumable mode： SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60； What is the impact of a timeout on the statements being suspended？（）
A. The statements remain suspended for at least 60 seconds.
B. The statements are suspended for 60 seconds and then they are executed.
C. The suspended statements error out if the problem is not rectified within 60 seconds.
D. The statements are automatically suspended 60 seconds after an error is received， and then attempt to execute normally again. -
单项选择题
Inyourtestdatabase，youfindthatauser’ssessionisexecutingalotofSQLstatements，resultinginthegenerationofalargenumberoftracefiles.Whileinvestigatingthereason，youfindthatSQLtracehasbeenenabledattheinstancelevel.YouwanttodisableSQLtrace，remotely，onlyforthatusersessiontoreducethevolumeoftracedatabeinggenerated.Howdoyouachievethisobjective？（）
A. by setting the SQL_TRACE parameter to FALSE in the parameter file
B. by using DBMS_MONITOR.SESSION_TRACE_DISABLE to disable the tracing for the user session
C. by setting the SQL_TRACE parameter to FALSE by using the ALTER SYSTEM command in the user session
D. by setting the SQL_TRACE parameter to FALSE by using the ALTER SESSION command in the user session -
多项选择题
You are working on an Oracle Database 10g database. Because of data loss， you decided to perform a Flashback Database operation using the following command： SQL> FLASHBACK DATABASE TO TIMESTAMP（SYSDATE ？5/24）； Which two statements are true？ （）
A. SYSDATE should not be used with TIMESTAMP.
B. The database must have multiplexed redo log files.
C. The database must be in the MOUNT state to execute the command.
D. The database must be opened with the RESETLOGS option after the flashback operation.
E. The entire database needs to be restored from the most recent backup before the flashback operation.
