ORACLE试题Word下载.docx

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ORACLE试题Word下载.docx

D.restoreallthedatafilesinthedatabase,andthenperformanincompleterecovery

CorrectAnswers:

Explanation:

2:

YousettherecoverywindowtosevendaysandthebackupoptimizationtoONusingtheCONFIGUREcommandofRecoveryManager(RMAN).ThemostrecentbackupoftheTOOLStablespacetodiskwastakenonJanuary3.TheTOOLStablespaceisread-only.OnFebruary21,whenyouexecuteacommandtobackupallthetablespacestodisk,youfindthatRMANbacksuptheTOOLStablespacealso,eventhoughthecontentsofthetablespacehavenotchangedafterthebackuponJanuary3.BecausetherearenochangesmadetotheTOOLStablespace,youdecidethatthetablespaceshouldnotbebackedupbyRMAN.WhatcanyoutodoskipbackinguptheTOOLStablespacewithoutchangingthecurrentbackupoptimizationsetting?

A.configureadefaultdeviceforRMANbackups

B.temporarilydisabletheretentionpolicyforRMANbackups

C.configureautomaticchannelallocationforRMANbackups

D.usetheCONFIGUREcommandtoreconfiguretherecoverywindowto60days

B

3:

ViewtheExhibitandexaminethecharacteristicsoftheUSERStablespace.YouobservethatalargevolumeofinsertsanddeletesarehappeningontheTRANStableintheUSERStablespaceandyoususpectthattheTRANStableisfragmented.Whichadvisorycomponentwouldyoureferto,inordertofindinformationabouttablefragmentation?

A.MemoryAdvisor

B.SegmentAdvisor

C.SQLTuningAdvisor

D.SQLAccessAdvisor

E.AutomaticDatabaseDiagnosticMonitor(ADDM)

4:

InyourproductiondatabaseyouwanttouseanAutomaticStorageManagement(ASM)instancetomanagethedatabasefiles.Whichoptionwouldyouusetomigratethedatabasefilesfromanon-ASMinstancetoanASMinstance?

A.OracleMigrationAssistant

B.RecoveryManager(RMAN)

C.OracleDataPumpExportandImport

D.conventionalOracleExportandImport

E.operatingsystemutilitiestocopythefilestotheASMinstance

5:

Youwanttocreateaconsumergroup,GROUP1,andyouexecutethefollowingcommandinthecommand-lineinterface:

SQL>

EXECDBMS_RESOURCE_MANAGER.CREATE_CONSUMER_GROUP

(CONSUMER_GROUP=>

'

group1'

COMMENT=>

'

NewGroup'

);

Thiscommanderrorsoutdisplayingthefollowingmessage:

ERRORatline1:

ORA-29371:

pendingareaisnotactive

ORA-06512:

at"

SYS.DBMS_RMIN"

line115

SYS.DBMS_RESOURCE_MANAGER"

line108

atline1

Whatactionwouldyoutaketoovercomethiserror?

A.createthePendingAreabeforecreatingtheconsumergroup

B.activatethePendingAreabeforecreatingtheconsumergroup

C.increasethesizeofthelargepooltoaccommodatethePendingArea

D.increasethesizeofthesharedpooltoaccommodatethePendingArea

E.increasethesizeofthedatabasebuffercachetoaccommodatethePendingArea

6:

Lastnight,amediafailurecausedthelossofatemporaryfilethatbelongstoyourdatabase.Whichtwothingsmayhappenthismorningwhenyoutrytoopenyourdatabase?

(Choosetwo.)

选项

A.Thedatabaseopensnormally.

B.Thedatabasepromptsforadatabaserecovery.

C.Thedatabasewriterwritestoatracefile,indicatingthatthetemporaryfileisnotfound.

D.Thedatabasegetsmountedandthrowsanerrorindicatingthatthetemporaryfilerequiresrecovery.

AC

7:

Thedatabasehasthedatablocksizesetto8KB.Youneedtoimportatablespacewitha4KBblocksizeintothedatabase.Whichadditionalmemoryparameter(s)shouldbeconfiguredtoperformatransportabletablespaceimport?

A.DB_CACHE_SIZEonly

B.DB_8K_CACHE_SIZEonly

C.DB_4K_CACHE_SIZEonly

D.SGA_TARGETandDB_4K_CACHE_SIZE

E.DB_BLOCK_SIZEandDB_8K_CACHE_SIZE

F.DB_BLOCK_SIZEandDB_4K_CACHE_SIZE

C

8:

Whatpurposewouldyouachievebyenablingtheblockchangetrackingfeature?

A.eliminatethenecessityforbackups

B.performoptimizedimagecopybackups

C.performoptimizedincrementalbackups

D.enablecheckpoint(CKPT)toperformcheckpointingateveryblockchange

E.enabledatabasewriter(DBWn)towritechangedblockstodatafilesfaster

9:

YouareworkingonanOracleDatabase10gdatabasethatoperatesintheARCHIVELOGmode.At06:

00p.m.,youdiscoveredthatatableintheSYSTEMtablespacethatdoesnotbelongtothedatadictionarywasdroppedat03:

00p.m.Whatwouldyoudotorecoverthetable?

A.performpoint-in-timerecoverytorecoverthetable

B.recoverthetablebyusingtheFlashbackTablefeature

C.restoretheentiredatabasefromthemostrecentbackupandopenit

D.usetheFlashbackTransactionQueryfeaturetoidentifytherelevantSQLstatementanduseittoundropthetable

10:

Youhavemanyuserscomplainingaboutslowinsertsintoalargetable.Whileinvestigatingthereason,youfindthatthenumberofindexesonthetableishigh.Youwanttofindoutwhichindexesarenotbeingused.Whichmethodwouldyoufollowtoachievethis?

A.enableindexmonitoringandquerytheDBA_OBJECTSview

B.enableindexmonitoringandquerytheDBA_INDEXESview

C.enableindexmonitoringandquerytheV$OBJECT_USAGEview

D.enableindexmonitoringandviewtheDBA_INDEXTYPE_COMMENTSview

11:

YourdatabaseisfunctioninginNOARCHIVELOGmode.Yourdatabasecontains15tablespaces.YouwanttouseRecoveryManager(RMAN)toperformbackups.Whichtwobackupswouldyoubeabletoperformwhenthedatabaseisbeingaccessedbyusers?

A.backupofofflinetablespaces

B.backupofread-onlytablespaces

C.backupofsystem-criticaltablespaces

D.backupofonline,locallymanagedtablespaces

E.backupofread/writedictionary-managedtablespaces

AB

12:

YouexecutethefollowingRMANcommandsintheordershownbelow:

BACKUPVALIDATEDATABASE;

BLOCKRECOVERCORRUPTIONLIST;

Whatwillthesecommandsdo?

A.createabackupofthedatabaseandrecoverallcorruptedblocksfoundinthebackup

B.runabackupvalidationandlistallthelogicallycorruptblocksaswellasphysicallycorruptblocksinthedatabase

C.runabackupvalidationtopopulateV$COPY_CORRUPTIONview,andthenlistanycorruptblocksrecordedintheview

D.runabackupvalidationtopopulateV$DATABASE_BLOCK_CORRUPTIONview,andthenrepairanycorruptblocksrecordedintheview

E.runabackupvalidation,repairanycorruptblocksfoundduringthevalidationprocess,andthenupdateV$DATABASE_BLOCK_CORRUPTION

viewtoindicatewhichcorruptblockshavebeenrepaired

D

13:

YouexecutedthefollowingcommandinRecoveryManager(RMAN)againstyourOracle10gdatabase:

RMAN>

REPORTNEEDBACKUPdays3;

Whatwouldbetheoutputofthiscommand?

A.alistoffilesthatrequireabackupwithinthreedays

B.alistoffilesthathavenotbeenbackedupforthreedays

C.alistoffilesthatRMANrecommendsbebackeduponlyonceineverythreedays,basedonlowvolatility

D.alistoffilesforwhichabackuphasalreadybeenperformedandmayneedabackupafterthreedays

14:

YouexecutedthefollowingcommandinRecoveryManager(RMAN):

RESTORECONTROLFILE;

Whichoperationmustyouperformbeforethiscommandisexecuted?

A.backupthecontrolfiletotrace

B.bringdatabasetotheMOUNTstate

C.openaconnectiontotheRMANrecoverycatalog,whichcontainstheRMANmetadataforthetargetdatabase

D.setthedatabaseID(DBID),butonlyiftheDB_NAMEparameterassociatedwiththetargetdatabaseisuniqueintherecoverycatalog

15:

YourdatabaseisfunctioninginARCHIVELOGmode.Inwhichtwosituationswouldyouperformacancel-basedrecovery?

A.Youfindthatoneoftheredologmembersineachredologgroupislost.

B.YoufindthatadatafilethatbelongstotheUSERStablespaceisdamaged.

C.YoufindthatadatafilethatbelongstotheSYSTEMtablespaceisdamaged.

D.Youfindthatthecurrentredologgroupisdamagedandisnotavailableforrecovery.

E.Yourealizedwhileperformingarecoverythatanarchivedredologfileneededforrecoveryislost.

DE

16:

Youhavespecifiedthewarningandcriticalthresholdvaluesofanapplicationtablespacetobe60%and70%,respectively.Fromthetablespacespaceusagemetrics,youfindthattheactualspaceusagehasreachedthespecifiedwarningthresholdvalue,butnoalertshavebeengenerated.Whatcouldbethereasonforthis?

A.TheEVENTparameterwasnotset.

B.TheSQL_TRACEparameterissettoFALSE.

C.TheEnterpriseManagerGridControlisnotused.

D.TheSTATISTICS_LEVELparameterissettoBASIC.

E.TheTIMED_STATISTICSparameterissettoFALSE.

17:

ViewtheExhibitandexaminetheFlashbackDatabasearchitecture.Identifythemissingcomponent(shownwitha"

?

"

)intheFlashbackDatabasearchitecture.

A.DBWn

B.RVWR

C.ARCH

D.RECO

E.TRWR

18:

Inwhichtwoconditionsareresumablestatementssuspended?

A.whenausersessionisterminated

B.whenauserexceedsthespacequota

C.whenausermanuallysuspe

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