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1题:
A.Thesortareaisverysmall.
B.ThereisnomorespaceintheUndotablespace.
C.Theflashrecoveryareaisfull.
D.Theonlineredologfileisfull.
第2题:
YouarepartoftheDBAteamworkingforamultinationalbank.Theteamisresponsibleforperformingadministrativetasksonthedatabaseserverlocatedatthehomeoffice.ThedatabaseserveratthehomeofficehasaproductiondatabaseandatestdatabasenamedTESTDB.Thetestdatabaseisprimarilyusedfortestingdatabasecommandsandconfigurationsettingsbeforimplementingthesesettingsontheproductiondatabase.Thetestdatabaseisalsousedforthedevelopmentofdatabaseapplications.YouhavebeenaskedbytheseniorDBAtogranttheSYSDBAprivilegetoanewteammember,John,sothathecanperformsomeadministrativetasks,suchasshutdownandstartupoperations,onTESTDB.YouusethepasswordfiletoconfigureremoteauthenticationontheTESTDBdatabase.Youexecutethefollowingstatementtograntthe SYSDBAprivilegetoJohn:
SQL>GRANTSYSDBATOjohn;
However,youreceivethefollowingerror:
ORA-01996:GRANTfailed:passwordfile
’c:\oracle\ora9i\dbs\testdb.pwd’isfull
Whichactionshouldyoutaketoaddtheuserjohntothepasswordfilewithoutremovinganyoftheexistingusers?()
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:
A.Runningaqueryonatablereturns"ORA-600:InternalError."
B.Insertingavalueinatablereturns"ORA-01722:invalidnumber."
C.Creatingatablereturns"ORA-00955:nameisalreadyusedbyanexistingobject."
D.Insertingavalueinatablereturns"ORA-00001:uniqueconstraint(SYS.PK_TECHP)violated."
E.RebuildinganindexusingALTERINDEX...REBUILDfailswithanerror"ORA-01578:ORACLEdatablockcorrupted(file#14,block#50).
第5题:
A. Running a query on a table returns ORA-600: Internal Error.
B. Inserting a value into a table returns ORA-01722: invalid number.
C. Creating a table returns ORA-00955: name us already in used by an existing objects.
D. Inserting a value into a table returns ORA-00001: unique constraint (SYS.OK_TECHP) violated.
E. Rebuilding an index using ALTER INDEX . . . REBUILD fails with an ORA-01578: ORACLE data block corrupted (file # 14, block # 50) error.