A.data filesB.control filesC.tablespacesD.password file……

单项选择题Asadatabaseadministratoryouspendalotoftimeobservingandsettingvariousstorageparametervaluesforyourapplicationtablesinordertogainperformancebenefits.Whichtaskwouldyouperformtoreducethisoverhead？（）

A.Coalesce the application tables at a regular interval.
B.Export and Import the application tables a regular interval.
C.Drop and recreate the application tables at a regular interval.
D.Move the application tables to a tablespace with less space usage.
E.Distribute the application tables across multiple tablespaces depending on usage.
F.Move the application tables to automatic segment space management tablespace.

多项选择题Exhibit： View the Exhibit to see the structure of the EMPLOYEES and DEPARTMENTS tables.  Your organization plans to dissolve the department with department ID 30. You execute the following command to delete rows from the DEPARTMENTS table： SQL>delete from DEPARTMENTS where DEPT_ID = 30；  The command fails and displays the following error：  ERROR at line 1：  ORA-02292： integrity constraint （HR.SYS_C005374） violated - child record found Which two actions would you take to overcome this error？（）

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

单项选择题Yourdatabaseperformancehasdegradedduetofrequentcheckpointing.Whatwouldyoudointhisscenario？（）

A.make redo log files smaller
B.increase the size of the checkpoint file
C.make the changes as per the advice given by MTTR Advisor
D.make the changes as per the advice given by Checkpoint Advisor

单项选择题Youwantthesizeofthetablespacetoincreasewhenitisfull.Whichoptionwouldyouuse？（）

A.use automatic extent allocation
B.disable threshold for the tablespace
C.use freelists to manage the free space
D.use automatic segment space management
E.create the tablespace as a bigfile tablespace
F.use the RESIZE clause while creating the tablespace
G.enable AUTOEXTEND for at least one of the data files in the tablespace

单项选择题YourdatabaseisinNOARCHIVELOGmodeandalogswitchhappensevery20minutes.OnThursdaymorning，mediafailureresultedincorruptionofadatafilebelongingtotheTOOLStablespace.BackupsaretakenoneverySunday.Whatwouldyoudointhissituation？（）

A.recover using Oracle Flashback Database technology
B.restore the data files from backup and perform a complete recovery
C.restore only the corrupted data file and perform tablespace recovery
D.restore the data files from backup and perform cancel-based recovery
E.restore the entire database from the most recent backup and start the instance and open the database