单项选择题
Examine this statement：
RMAN >BACKUP FORMAT ’/BACKUP/df_%d_%s_%p.bus1 DATABASE filesperset = 2；
What state must the target database be in for you to use this RMAN command？（）
A.The target database must be open.
B.The target database must be closed.
C.The target database must be mounted.
D.The target database must be mounted or open.
相关考题
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单项选择题
WhenyouusetheOracleNetConfigurationAssistanttospecifythenamingmethod，whichfileisupdated？（）
A.INIT.ORA
B.SQLNET.ORA
C.LISTENER.ORA
D.TNSNAMES.ORA -
单项选择题
WhenissuingtheCROSSCHECKcommandinRMAN，ifabackupfileCANNOTbefound，towhatstatusisthatfileset？（）
A.DELETED
B.OBSOLETE
C.EXPIRED
D.UNKNOWN -
单项选择题
YourdatabaseissetinNOARCHIVELOGmodeandisbackedupeverynight.Thereare10redologgroupsonthedatabase，eachwiththreemembers，makingatotalof30redologfiles.Atlunchtimetheserverunexpectedlygetsshutdown.UponrestartingyounoticethatthedatafilebelongingtotheSYSTEMtablespacehasbecomecorrupted.Youalsonoticethattherehavebeen15logswitchesduringtheday.Whichsolutionshouldyouusetorecoverasmuchcommitteddataaspossible？（）
A.Restore the data file for the SYSTEM tablespace then open the database.
B.Restore all redo logs form last night's backup, then restart the database.
C.Perform a complete restore of all files from last night's backup. Data entered into the database today must be reentered.
D.Mount the instance, take the SYSTEM tablespace offline, open the database, and then restore the data file, recover it, and bring the tablespace online.
