单项选择题
Your boss at Supportcenter.cn wants you to clarify Oracle 10g. Which statement regarding the usage of redo log files during instance recovery is true？ （）
A.Transactions are rolled back using redo log files.
B.Transactions are rolled forward using redo log files.
C.Transactions are rolled back using redo log files and archived log files.
D.Transactions are rolled forward using redo log files and rolled back using redo log files.
相关考题
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多项选择题
YouworkasadatabaseadministratorforSupportcenter.cn.YouareusingRecoveryManager（RMAN）toperformbackupsinyourdatabases.WhichfourbackupoperationscanbeperformedusingRMAN？（）
A.A backup of the target database when it is mounted
B.A backup of online redo log files when the database is open
C.A backup of only used data blocks in the file beingbeingbackup up
D.A backup of online， read/write data files when the database is open
E.A backup of only those data blocks that have changed since a previous backup
F.A backup of online， read/write data files when the database is in the NOMOUNT state. -
多项选择题
YouworkasadatabaseadministratorforSupportcenter.cn.Youwanttoadministeryourdatabaseservers，whicharerunningondifferenthostmachines，usingtheWeb-enabledgridcontrolinterface.Youhaveconfiguredtheagentonthehostmachines.YouhavestartedtheOracleDatabase10gGridControlutilityonyourmachine.Whichtwoadditionalcomponentswouldyouconfiguretoachievethisobjective？（）
A.Application Server Control
B.Oracle Management Service
C.Oracle Enterprise Manager Repository
D.Oracle Enterprise Manager Database Control -
单项选择题
YouworkasadatabaseadministratorforSupportcenter.cn.Youwanttoconfiguredatabasebackupstoberunautomatically.Whichtoolorutilitywouldyouusetoachievethis？（）
A.The DBMS_JOB package
B.The BACKUP_JOB package
C.The DBMS_BACKUP_RESTORE package
D.The calendar tool in the Operating System （OS）
E.The backup scheduler in Enterprise Manager （EM）
F.The DBMS_BACKUP_SCHEDULER packager inline mode
