Whileworkingonthedatabase,youreceivethefollowingerror:01578:ORACLEdatablockcorrupted(file6,block54)ORA-01110:datafile6:’u01/oracle/oradata/data1.dbf’YoudecidetorecoverthecorrupteddatablockbyusingtheBlockMediaRecoveryfeature.WhichoptionisNOTadisadvantageof

题目

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.


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  • 第1题:

    Youreceivethefollowingerror:ORA-19804:cannotreclaimnnnnnbytesdiskspacefrommmmmmlimitIdentifythereasonforreceivingtheaboveerrormessage?()

    A.Thesortareaisverysmall.

    B.ThereisnomorespaceintheUndotablespace.

    C.Theflashrecoveryareaisfull.

    D.Theonlineredologfileisfull.


    参考答案:C

  • 第2题:

    YouarepartoftheDBAteamworkingfora&en

    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?()


    参考答案:B

  • 第3题:

    YouworkasadatabaseadministratoratCertkiller&ensp

    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?()


    参考答案:D

  • 第4题:

    Identifythetwosituationsinwhichthealertlogfileisupdatedwithdetails.()

    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).


    参考答案:A, E

  • 第5题:

    Identify two situations in which the alert log file is updated.()

    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.


    参考答案:A, E