AstheDBA,yourunthefollowingqueryonyourASMinstance.Whatistheimplicationoftheresul
2021-05-05
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.
正确答案：参考A, E
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