You executed the STARTUP MOUNT command to start your database. For which database operation do you need to start the database in the MOUNT state？（）

单项选择题When you try to open your database， you receive the following error：  ORA-00205： error in identifying controlfile  Where would you find the details required to resolve this error？（）

A.audit trail
B.alert log file
C.user trace file
D.online trace file
E.background trace file
F.operating system event viewer

单项选择题User SCOTT wants to export his objects using Oracle Data Pump and executes the following command： $ expdp scott tiger  directory = EXPORT_DIR  dumpfile = scott.dmp include = table  include = view： like ’%DEPARTMENTS%’   content = DATA_ONLY  Which task would the command accomplish？（）

A.A
B.B
C.C
D.D
E.E

单项选择题Userscomplainabouttheslowresponsetimeofqueries.WhileinvestigatingthecauseyoufindthattheOracleInstanceisnotconfiguredtocacheallofthedatablockstosatisfytheusers’queries.WhichcomponentoftheOracleInstancewouldyouchangetoimproveperformance？（）

A.Java pool
B.Large pool
C.Shared pool
D.Streams pool
E.Library cache
F.Redo log buffer
G.Data dictionary cache
H.Database buffer cache

单项选择题A user complains that he gets the following error message repeatedly after executing some SQL statements.The error message forces the user to log off from and log onto the database to continue his work.  ORA-02392：exceeded session limit on CPU usage，you are being logged off Which action would you take to increase the session limit on CPU usage？（）

A.Modify the profile assigned to the user.
B.Modify the roles assigned to the users.
C.Modify the object privileges assigned to the user.
D.Modify the system privileges assigned to the users.
E.Modify the value for the RESOURCE_LIMIT parameter in the parameter file.

单项选择题Youhavecreatedabaselinemetric，DISK_IO_BL，forthediskI OmetricsinyourPRODdatabaseandyouhavebeengettingnotificationswheneverthedatabaseperformancedegrades.YouoptimizethedatabaseI Otogaintheperformanceandyoudecidetoremovethebaselinemetrics.WhichmethodwouldyouusetoremovetheDISK_IO_BLbaselinemetrics？（）

A.The baseline， once created， cannot be removed.
B.Disable the baseline metrics in the Database Control Manage Metrics page.
C.The baseline will be automatically removed once the database performance has been optimized.
D.Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.