AstheDBA,yourunthefollowingqueryonyourASMinstance.Whatistheimplicationoftheresultsoftheque

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AstheDBA,yourunthefollowingqueryonyourASMinstance.Whatistheimplicationoftheresultsofthequery?()SQL>selectgroup_number,name,statefromv$ASM_DISKGROUP;GROUP_NUMBERNAMESTATE0DGROUP1DISMOUNTED2DGROUP2MOUNTED3DGROUP3MOUNTED

A.TheDGROUP1diskgroupwasunmountedbyanotherDBA.

B.Adatafilehasbeenlost,causingtheASMdiskgroupDGROUP1togointotheDISMOUNTEDstate

C.Oneoftheredundantdisks(DGROUP1)hasbeenlostinadiskgroup.

D.ThisqueryhasnomeaninginanASMinstance.

E.AdiskassociatedwithadiskgroupwasdiscoveredaftertheASMinstanceinitiallyopened.

参考答案:

参考A, E

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