微软MCITPDatabase Administrator认证考试题库1.docx
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微软MCITPDatabaseAdministrator认证考试题库1
70-450
QUESTION1
YouareaprofessionallevelSQLSever2008DatabaseAdministratorinaninternationalcorporationnamedWiikigo.
Youareexperiencedinmanagingdatabasesinanenterprise-levelorganization,optimizingandsustainingthedatabaselifecycle.
Inthecompany,yourjobistoimplementsolutionsonsecurity,troubleshooting,deploymentandoptimization.ASQLServer2008infrastructureismanagedbyyou.
Adatabaseisincludedbytheinstance,andatablenamedEmployeeDataiscontainedbythedatabase.
ThereisacolumnnamedProfileintheEmployeeDatatable.MicrosoftOfficeWord2003documentsarestoredinthecolumn.
ThespaceutilizedbytheProfilecolumnshouldbecuttotheleast.
Inaddition,areasonableperformanceshouldbemaintainedtoretrievethecontentofthecolumn.
Whichactionwillyouperform?
A.
ROWcompressionshouldbeutilizedfortheEmployeeDatatable.
B.
TheProfilecolumnshouldbestoredbyutilizingfilestreamstorage,andtheNTFSfilesystemcompressionshouldbeutilized.
C.
PAGELEVELcompressionshouldbeutilizedfortheEmployeeDatatable.
D.
TheProfilecolumnshouldbeimplementedasaCLRuser-definedtype.
Answer:
B
Explanation/Reference:
Muchofthedatathatiscreatedeverydayisunstructureddata,suchastextdocuments,images,andvideos.Thisunstructureddataisoftenstoredoutsidethedatabase,separatefromitsstructureddata.Thisseparationcancausedatamanagementcomplexities.Or,ifthedataisassociatedwithstructuredstorage,thefilestreamingcapabilitiesandperformancecanbelimited.
FILESTREAMintegratestheSQLServerDatabaseEnginewithanNTFSfilesystembystoringvarbinary(max)binarylargeobject(BLOB)dataasfilesonthefilesystem.Transact-SQLstatementscaninsert,update,query,search,andbackupFILESTREAMdata.Win32filesysteminterfacesprovidestreamingaccesstothedata.
FILESTREAMusestheNTsystemcacheforcachingfiledata.ThishelpsreduceanyeffectthatFILESTREAMdatamighthaveonDatabaseEngineperformance.TheSQLServerbufferpoolisnotused;therefore,thismemoryisavailableforqueryprocessing.
Note:
FILESTREAMdataisnotencryptedevenwhentransparentdataencryptionisenabled.
QUESTION2
YouareaprofessionallevelSQLSever2008DatabaseAdministratorinaninternationalcorporationnamedWiikigo.
Youareexperiencedinmanagingdatabasesinanenterprise-levelorganization,optimizingandsustainingthedatabaselifecycle.
Inthecompany,yourjobistoimplementsolutionsonsecurity,troubleshooting,deploymentandoptimization.
ASQLServer2008instanceshouldbemanaged.
Itisreportedbythecustomersthattheserverperformancedegradedduetoanewlyimplementedprocess.
DynamicManagementViewsisutilizedtoconfirmthatnolongrunningqueriesexist.Theoperatingsystemperformancedatashouldbecorrelatedwiththeactualqueryexecutiontrace,andtheleastadministrativeeffortshouldbeutilized.
Whichactionwillyouperformtofinishthetask?
A.
Tofinishthetask,DataCollectorshouldbeutilized.
B.
Tofinishthetask,theSQLdiag.exeutilityshouldbeutilized.
C.
Tofinishthetask,SQLServerProfilerandthetracerpt.exeutilityshouldbeutilized.
D.
Tofinishthetask,SQLServerProfilerandSystemMonitorshouldbeutilized.
Answer:
D
Explanation/Reference:
SQLServerprofilerdisplaysdataaboutalargenumberofSQLServerevents.WhereasWindowsSystemMonitorgraphicallydisplaysinformationabouttheserverinternals.YoucanmergethetwosetsofinformationandwalkthroughascenarioviewingbothperspectivesusingSQLServerProfiler.
Tosetupthedual-perspectiveexperience,youneedtosimultaneouslycaptureserverperformanceusingbothPerformanceMonitor’sCounterLogsandSQLServerProfiler.Thestepstodothisarelistedbelow:
1.ConfigureSystemMonitorwiththeexactcountersyouwanttoviewlater.Besuretogetthescaleandeverythingjustright.SetuptheCounterLogtotheexactsameconfiguration.
2.ConfigureProfilerwiththerightsetoftraceevents.TheymustincludethestartandendtimedatacolumnssothatProfilercanintegratethetwologslater.Savetheprofilerandcloseprofiler.
3.ManuallystarttheCounterLog.OpenSQLProfilertracecodetostarttheserver-sidetrace.
4.Whenthetestiscomplete,stopboththecounterLogandtheserversidetrace.YouneedtostoptheSQLProfilerwhichisanegativepointinthis.
5.Openprofilerandopenthesavedtracefile.
6.UsetheFile->ImportPerformanceDatamenucommandtoimporttheCounterLog.Youhavetheoptionofselectingonlytheimportantcountersfromtheperformancemonitor.Therewillbeperformanceissuesifyouselecttoomanycounters.
Source:
http:
//www.sql-server-
QUESTION3
YouareaprofessionallevelSQLSever2008DatabaseAdministratorinaninternationalcorporationnamedWiikigo.
Youareexperiencedinmanagingdatabasesinanenterprise-levelorganization,optimizingandsustainingthedatabaselifecycle.
Inthecompany,yourjobistoimplementsolutionsonsecurity,troubleshooting,deploymentandoptimization.ASQLServer2008infrastructureismanagedbyyou.
Thereisadatabaseintheinstance,andtheday-to-daybusinessofyourcompanyrequiresthedatabase.Whenreportsareexecuted,slowresponsetimewillbeexperiencedbyUsers.
Aperformancemonitoringstrategywillbeimplementedbyyousoastohavethreeaspectsofdatacapturedandstored:
Blockinganddeadlockinformation,
ExecutedTransact-SQLstatements
QueryactivityandCountersfordisk,CPU,andmemory.
Youarerequiredtoutilizetheleastamountofadministrativeefforttoimplementthemonitoringprocess.
Whichactionwillyouperformtofinishthetask?
A.
Tofinishthetask,theclient-sideprofilertraceshouldbeutilized.
B.
Tofinishthetask,thedynamicmanagementviewsshouldbeutilized.
C.
Tofinishthetask,thedatacollectorshouldbeutilized.
D.
Tofinishthetask,theSystemMonitorcounterlogtraceshouldbeutilized.
Answer:
C
Explanation/Reference:
SQLServer2008providesadatacollectorthatyoucanusetoobtainandsavedatathatisgatheredfromseveralsources.Thedatacollectorenablesyoutousedatacollectioncontainers,whichenableyoutodeterminethescopeandfrequencyofdatacollectiononaSQLServerserversystem.
Thedatacollectorprovidespredefinedcollectortypesthatyoucanusefordatacollection.Thecollectortypesprovidetheactualmechanismforcollectingdataanduploadingittothemanagementdatawarehouse.Forthisreleaseofthedatacollector,thefollowingcollectortypeisprovided.
InThisSection
Topic
Description
T-SQLQueryCollectorType
DescribesthestructureandbehavioroftheT-SQLQuerycollectortype.
SQLTraceCollectorType
DescribesthestructureandbehavioroftheSQLTracecollectortype.
PerformanceCountersCollectorType
DescribesthestructureandbehaviorofthePerformanceCounterscollectortype.
QueryActivityCollectorType
DescribesthestructureandbehavioroftheQueryActivitycollectortype.
QUESTION4
YouareaprofessionallevelSQLSever2008DatabaseAdministratorinaninternationalcorporationnamedWiikigo.
Youareexperiencedinmanagingdatabasesinanenterprise-levelorganization,optimizingandsustainingthedatabaselifecycle.
Inthecompany,yourjobistoimplementsolutionsonsecurity,troubleshooting,deploymentandoptimization.ASQLServer2008instanceshouldbemanagedbyyou.
Thecomputeronwhichtheinstancerunhasthefollowingthreefeatures:
a64-GBRAM,fourquad-coreprocessors,andseveralindependentphysicalraidvolumes
Atransactionaldatabasewillbeimplementedontheinstance.Inaddition,thedatabaseshouldhaveahighvolumeofINSERT,UPDATE,andDELETEactivities.
Creationofnewtablesiscontainedbytheactivities.
Youneedtomaximizediskbandwidthanddecreasethecontentioninthestorageallocationstructuressoastohavetheperformanceofthedatabaseoptimized.
Whichactionwillyouperformtofinishthetask?
A.
Tofinishthetask,databaseandlogfilesshouldbeplacedonthesamevolume.
B.
Tofinishthetask,theaffinitymaskoptionshouldbeconfiguredproperly.
C.
Tofinishthetask,multipledatafilesshouldbecreateforthedatabase.
D.
Tofinishthetask,theaffinityI/Omaskoptionshouldbeconfiguredproperly.
Answer:
C
Explanation/Reference:
Ifyourdatabaseisverylargeandverybusy,multiplefilescanbeusedtoincreaseperformance.Hereisoneexampleofhowyoumightusemultiplefiles.Let'ssayyouhaveasingletablewith10millionrowsthatisheavilyqueried.Ifthetableisinasinglefile,suchasasingledatabasefile,thenSQLServerwouldonlyuseonethreadtoperformareadoftherowsinthetable.Butifthetableweredividedintothreephysicalfiles,thenSQLServerwouldusethreethreads(oneperphysicalfile)toreadthetable,whichpotentiallycouldbefaster.Inaddition,ifeachfilewereonitsownseparatephysicaldiskordiskarray,theperformancegainwouldevenbegreater.
Essentially,themorefilesthatalargetableisdividedinto,thegreaterthepotentialperformance.Ofcoursethereisapointwheretheadditionalthreadsaren'tofmuchusewhenyoumaxouttheserver'sI/O.ButupuntilyoudomaxouttheI/O,additionalthreads(andfiles)shouldincreaseperformance
SOURCE:
http:
//www.sql-server-
QUESTION5
YouareaprofessionallevelSQLSever2008Database