题目内容

Yourdatabaseisupandrunningandoneofyourthreecontrolfilesisaccidentallyerased.YoustartRMANandrunthefollowingcommand:RESTORECONTROLFILEFROMAUTOBACKUP;Whichofthefollowingstatementsistrue?()

A. Thecommandrestoresonlythemissingcontrolfile.
B. Thecommandrestoresallthecontrolfiles.
C. Thecommandfailsbecausethedatabaseisrunning.
D. Thisisthecorrectwaytoaddressthisproblem.
E. Thisisnotthecorrectwaytoaddressthisproblem.

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