A. The ‘/u01/app/oracle/oradata/orcl/users01.dbf‘ data file is recovered from the image copy
B. The ‘/u01/app/oracle/oradata/orcl/users01.dbf‘ data file is recovered from the last incremental backup
C. Image copies of the ‘/u01/app/oracle/oradata/orcl/users01.dbf‘ data file are updated with all changes up to incremental backup SCN. ‘/ u01/app/oracle/oradata/orcl/users01.dbf
D. Image copies of the ‘/u01/app/oracle/oradata/orcl/users01.dbf‘ data file are recovered using the above command if data file recovery fails
第1题:
Whileworkingonthedatabase,youreceivethefollowingerror:01578:ORACLEdatablockcorrupted(file6,block54)ORA-01110:datafile6:’u01/oracle/oradata/data1.dbf’YoudecidetorecoverthecorrupteddatablockbyusingtheBlockMediaRecoveryfeature.WhichoptionisNOTadisadvantageofusingblockmediarecovery?()
A.BlockMediaRecoverymustbeusedwithRMAN.
B.Youmustperformcompleterecoveryofindividualblocks.
C.YoumusthaveafullRMANbackup,notanincrementalbackup.
D.YoumustusetheDBVERIFYutilitybeforeusingtheBlockMediaRecoveryfeature.
第2题:
Youissuethefollowingstatement:SQL>SELECTFIRSTNAME,LASTNAMEFROMHR.EMPLOYEE;Youreceivethefollowingerror:01578:ORACLEdatablockcorrupted(file6,block54)ORA-01110:datafile6:’u01/oracle/oradata/data1.dbf’Howwillyouresolvethisproblemofdatablockcorruptionbyreducingthemeantimetorecover(MTTR)?()
A.byusingtheDBMS_REPAIRpackage
B.byusingtheDBVERIFYutility
C.byusingBlockMediaRecovery
D.byissuingtheANALYZETABLEHR.EMPLOYEESVALIDATESTRUCTUREcommand
第3题:
YouworkasadatabaseadministratoratCertkiller.com.YourdatabaseisopenandrunninginARCHIVELOGmode.YoutakeRMANfullbackupseverySundaynight.OnMondaymorning,whilequeryingtheuser1.employeestable,youreceivethefollowingerrormessage:
01578:ORACLEdatablockcorrupted(file#5,block#51)
ORA-01110:datafile5:’/u01/app/oracle/oradata/orcl/example01.dbf’
Youneedtorectifythecorruptionwhileensuringthefollowing:
Thedatafileshouldremainonline.
Themeantimetorecover(MTTR)shouldbeminimal.
Youarenotusingabackupcontrolfileandallthearchivedlogsareaccessible.
Whichoptionwouldyouchoose?()
第4题:
Youralertlogfilehasthefollowinginformation:TueMay2517:43:382004ORA-00060:Deadlockdetected.Moreinfoinfile/u01/app/oracle/admin/ORCL/udump/orcl_ora_3173.trc.Whatwouldyoudotoensurethatdatabaseisstillrunningcorrectly?()
A.examinethetracefileandkillthesessionthatcausedthedeadlock
B.examinethetracefileandkillboththesessionsresponsibleforthedeadlock
C.examinethetracefilefordetailsandasktheuserwhocausedthedeadlocktorollbackthetransaction
D.examinethetracefilefordetailsandrememberthatdeadlocksareresolvedautomaticallybyOracledatabase
E.examinethetracefilefordetailsandusetheUndoAdvisortorollbackthetransactionthatcausedthedeadlock
第5题:
A.The’/u01/app/oracle/oradata/orcl/users01.dbf’datafileisrecoveredfromtheimagecopy.
B.The’/u01/app/oracle/oradata/orcl/users01.dbf’datafileisrecoveredfromthelastincrementalbackup.
C.Imagecopiesofthe’/u01/app/oracle/oradata/orcl/users01.dbf’datafileareupdatedwithallchangesuptoincrementalbackupSCN.
D.Imagecopiesofthe’/u01/app/oracle/oradata/orcl/users01.dbf’datafilearerecoveredusingtheabovecommandifdatafilerecoveryfails.