题目内容

FromtheV$SESSION_LONGOPSview,youfindthatsomeofthedatabaseusershavelongrunningqueriesandareconsumingalotofCPUtime.Thiscausesproblemsforyouwhenyoutrytologonasthesystemuserandperformsmallmaintenancetasks.YouwouldliketoensurethatusersSYSandSYSTEMgetpriorityoverallotherusers.Whichmethodwouldyouusetoachievethisobjective?()

A. createaplandirectiveintheSYS_GROUP
B. createthependingareafortheconsumergroup
C. activatetheprovidedSYSTEM_PLANinResourceManager
D. settheTIMED_STATISTICSparametertoTRUEintheparameterfile
E. settheexecutiontimelimitforallusers,exceptSYSandSYSTEM,intheirprofiles

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Whichviewprovidesinformationonthebackupstatusofthedatafilesinthedatabase?()

A. V$BACKUP
B. V$BACKUP_STATUS
C. V$BACKUP_DATAFILE
D. V$DATAFILE_BACKUP
E. V$TABLESPCE_BACKUP

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

A. backupofofflinetablespaces
B. backupofreadonlytablespaces
C. backupofsystemcriticaltablespaces
D. backupofonline,locallymanagedtablespaces
E. backupofread/writedictionarymanagedtablespaces

Whilesettingupthethresholdsfortablespacespaceusagemetricsforoneofyourtablespaces,youdefinethecriticalthresholdas60%andwarningthresholdas75%.Whatwouldbetheresultofthissetting?()

A. Itwouldresultinanerrorbecausethewarningthresholdcannotbemorethanthecriticalthreshold.
B. Thewarningthresholdisignoredandalertswouldbegeneratedwhenspaceusageexceedsthecriticalthreshold.
C. Thecriticalthresholdisignoredandalertswouldbegeneratedwhenspaceusageexceedsthewarningthreshold.
D. Boththresholdvaluesareusedandalertsaregeneratedwhenspaceusageexceedstherespectivethresholdvalues.

TheDBAhaschosentomanageSGAandPGAmemoryseparatelyinanOLTPdatabasebecauseofhisuniqueknowledgeoftheapplication.WhichofthesearegoodstartingpointstousewhenconfiguringthemaximumvaluesforSGAandPGA,basedontheamountofmemoryavailableonthesystem?()

A. 20%SGA 80%PGA
B. 25%SGA 75%PGA
C. 50%SGA 50%PGA
D. 75%SGA 25%PGA
E. 80%SGA 20%PGA

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