From the V$SESSION_LONGOPS view， you find that some of the database users have long­running queries that consume a lot of CPU time. This causes performance problems for other users in the database， who have much shorter queries. 
You would like to make sure that the users with large queries do not use all the CPU time， but you still do not want to terminate them with an error message. Which method would you follow to achieve this？（）

单项选择题FromtheV$SESSION_LONGOPSview，youfindthatsomeofthedatabaseusershavelong­runningqueriesandareconsumingalotofCPUtime.Thiscausesproblemsforyouwhenyoutrytologonasthesystemuserandperformsmallmaintenancetasks.YouwouldliketoensurethatusersSYSandSYSTEMgetpriorityoverallotherusers.Whichmethodwouldyouusetoachievethisobjective？（）

A.create a plan directive in the SYS_GROUP
B.create the pending area for the consumer group
C.activate the provided SYSTEM_PLAN in Resource Manager
D.set the TIMED_STATISTICS parameter to TRUE in the parameter file
E.set the execution time limit for all users， except SYS and SYSTEM， in their profiles

单项选择题YourdatabaseisrunningintheautomaticProgramGlobalArea（PGA）memorymanagementandSharedMemoryManagementmode.YouwanttoincreasethememoryavailablefortheSQLworkareas.Whatwouldyoudo？（）

A.modify the HASH_AREA_SIZE initialization parameter
B.modify the PGA_AGGREGATE_TARGET initialization parameter
C.modify the WORK_AREASIZE_POLICY initialization parameter
D.increase the value of the SGA_TARGET initialization parameter
E.increase the value of the SGA_MAX_SIZE initialization parameter
F.increase the value of the SORT_AREA_SIZE initialization parameter

单项选择题In your production database you want to use an Automatic Storage Management （ASM） instance to manage the database files.  Which option would you use to migrate the database files from a non­ASM instance to an ASM instance？（）

A.Oracle Migration Assistant
B.Recovery Manager （RMAN）
C.Oracle Data Pump Export and Import
D.conventional Oracle Export and Import
E.operating system utilities to copy the files to the ASM instance

单项选择题YouhaveanAutomaticStorageManagement（ASM）instancemanagingthedatabasefilesofyourproductiondatabase.ThedatabasecontainsASMfilesandnon­ASMfiles.UsingRecoveryManager（RMAN），youmigratethecompleteproductiondatabasetousetheASMinstance.Whichstatementistrue？（）

A.RMAN would relocate all the database files to an ASM disk group.
B.RMAN would change the file definitions in the control file to use the ASM but would not relocate the database files physically.
C.RMAN would relocate all the data files to an ASM disk group and other files to an operating system location， defined using Oracle Managed Files （OMF）.
D.RMAN would relocate the ASM files to an ASM disk group and the non­ASM files to an operating system location， defined using OMF

多项选择题Youwanttomigrateyourexistingnon­ASMfilestoASMfilesforthedatabasePROD.Whichmethodorcommandwouldyouusetoaccomplishthistask？（）

A.the CONVERT command of RMAN
B.Data Pump Export and Import into the same database
C.conventional export and import into the same database
D.the BACKUP DATABASE and RESTORE DATABASE commands of RMAN
E.the BACKUP AS COPY DATABASE and SWITCH DATABASE TO COPY command of RMAN