You are using the Database Configuration Assistant to configure your Oracle database. Which of the following terms pertains to the creation of an object from which creation of the other database can be based? （）

单项选择题YouissuethefollowingcommandinOracle:CREATETABLESPACEDAT_TBSDATAFILE dat_tbs.dbf SIZE2M;.Laterqueriesagainstthedatabaserevealthatthetablespaceislocatedinthe u01 oradata oracledirectory.WhichofthefollowingchoicesidentifieshowOraclelikelydeterminedwhatdirectorytoplacedat_tbs.dbffilein?（）

A.DB_CREATE_FILE_DEST 
B.DB_CREATE_ONLINE_LOG_1 
C.DB_CREATE_ONLINE_LOG_2
D.The directory is an operating system-specific default value in Oracle that can neigher be specified manually nor changed

单项选择题YouaremanagingtheOracledatabase.WhichofthefollowingchoicescorrectlyidentifieswhenOraclereadsthecontentsoftheinit.orafile?（）

A.When the instance is started 
B.When the database is mounted 
C.When the database is opened 
D.When the database is closed

单项选择题AuserissuesaSELECTcommandagainsttheOracledatabase.WhichofthefollowingchoicesdescribesastepthatOraclewillexecuteinsupportofthisstatement?（）

A.Acquire locks on table queried 
B.Generate redo for statement 
C.Fetch data from disk into memory 
D.Write changes to disk

单项选择题Youhavealong-runningprocessyouwanttoassigntoaspecificUNDOsegmentbroughtonlineforthatexpresspurpose.YouarenotusingautomaticUNDOmanagement.Whatstatementcanbeusedforthistask?（）

A.ALTER DATABASE 
B.SET TRANSACTION 
C.ALTER ROLLBACK SEGMENT 
D.ALTER TABLE

单项选择题Whichofthefollowingchoicescorrectlydescribesthedifferencebetweenadataloadviatheconventionalpathandthedirectpath?（）

A.One runs faster than the other
B.A conventional path data load bypasses most of the Oracle RDBMS, whereas a direct path load is a high-speed version of the SQL INSERT
C.A direct path data load bypasses most of the Oracle RDBMS, whereas a conventional path load is a high-speed version of the SQL INSERT
D.The conventional path runs when the CONVENTIONAL command-line parameter is set to TRUE