YouworkasadatabaseadministratorforSupportcenter.cn.Youstartedtheinstanceusingtheinit.orafi

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YouworkasadatabaseadministratorforSupportcenter.cn.Youstartedtheinstanceusingtheinit.orafile.Youhavetwocontrolfilesandthreeredologgroupsinyourdatabase.Youdecidedtoprotectthedatabaseagainstfailuresbyaddingonemorecontrolfile.Whichfileistheappropriatewaytoperformthistask？（）

A.Shutdowntheinstance，copythecontrolfiletothethirdlocationandopenthedatabase.

B.Aborttheinstance，copythecontrolfiletothethirdlocation，modifytheCONTROL_FILESparameterintheinit.orafileandopenthedatabase.

C.Copythecontrolfiletothethirdlocation，modifytheCONTROL_FILESparameterintheinit.orafile，restarttheinstanceandopenthedatabase.

D.Shutdowntheinstance，copythecontrolfiletothethirdlocation，modifytheCONTROL_FILESparameterintheinit.orafileandopenthedatabase.

E.Shutdowntheinstance，startupinthemountstate，copythecontrolfiletothethirdlocation，modifytheCONTROL_FILESparameterininit.oraandopenthedatabase.

参考答案:

参考D

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