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1Copyright©2012PearsonEducation,Inc.ManagementInformationSystems,12e(Laudon)Chapter6FoundationsofBusinessIntelligence:DatabasesandInformationManagement1)Agroupingofcharactersintoaword,agroupofwords,oracompletenumberiscalledarecord.Answer:FALSEDiff:1PageRef:210AACSB:UseofITCASE:ContentObjective:6.32)Eachcharacteristicorqualitydescribingaparticularentityiscalledanattribute.Answer:TRUEDiff:1PageRef:210AACSB:UseofITCASE:ContentObjective:6.33)Program-datadependencereferstothecouplingofdatastoredinfilesandsoftwareprogramsthatusethisdatasuchthatchangesinprogramsrequirechangestothedata.Answer:TRUEDiff:2PageRef:211AACSB:UseofITCASE:ContentObjective:6.14)ADBMSseparatesthelogicalandphysicalviewsofdata.Answer:TRUEDiff:2PageRef:212AACSB:UseofITCASE:ContentObjective:6.25)Everyrecordinafileshouldcontainatleastonekeyfield.Answer:TRUEDiff:1PageRef:214AACSB:UseofITCASE:ContentObjective:6.36)Manyapplicationstodayrequiredatabasesthatcanstoreandretrievemultimedia.Answer:TRUEDiff:1PageRef:215AACSB:UseofITCASE:ContentObjective:6.27)OneofthedrawbackstoOODBMSarethattheycannotworkwithapplets.2Copyright©2012PearsonEducation,Inc.Answer:FALSEDiff:2PageRef:215AACSB:UseofITCASE:ContentObjective:6.28)OODBMSareslowerthanrelationalDBMS.Answer:TRUEDiff:2PageRef:215AACSB:UseofITCASE:ContentObjective:6.29)Adatadictionaryisalanguageassociatedwithadatabasemanagementsystemthatendusersandprogrammersusetomanipulatedatainthedatabase.Answer:FALSEDiff:1PageRef:217AACSB:UseofITCASE:ContentObjective:6.210)Inarelationaldatabase,complexgroupingsofdatamustbestreamlinedtoeliminateawkwardmany-to-manyrelationships.Answer:TRUEDiff:1PageRef:220AACSB:UseofITCASE:ContentObjective:6.311)Adatawarehousemaybeupdatedbyalegacysystem.Answer:TRUEDiff:1PageRef:222AACSB:UseofITCASE:ContentObjective:6.412)Adatawarehouseistypicallycomprisedofseveralsmallerdatamarts.Answer:FALSEDiff:2PageRef:223AACSB:UseofITCASE:ContentObjective:6.43Copyright©2012PearsonEducation,Inc.13)OLAPisakeytoolofBI.Answer:TRUEDiff:2PageRef:224AACSB:UseofITCASE:ContentObjective:6.414)OLAPenablesuserstoobtainonlineanswerstoad-hocquestionsinafairlyrapidamountoftime,exceptwhenthedataarestoredinverylargedatabases.Answer:FALSEDiff:2PageRef:224AACSB:UseofITCASE:ContentObjective:6.415)Predictiveanalysisissynonymouswithdatamining.Answer:FALSEDiff:3PageRef:226AACSB:UseofITCASE:ContentObjective:6.416)InaWeb-baseddatabase,middlewareisusedtotransferinformationfromtheorganization'sinternaldatabasebacktotheWebserverfordeliveryintheformofaWebpagetotheuser.Answer:TRUEDiff:2PageRef:229AACSB:UseofITCASE:ContentObjective:6.417)ThedisadvantageofusingaWebinterfaceforadatabaseisthatittypicallyrequiressubstantialchangestotheinternaldatabase.Answer:FALSEDiff:1PageRef:229AACSB:UseofITCASE:ContentObjective:6.418)CommonGatewayInterfaceisaspecificationforprocessingdataonaWebserver.Answer:TRUEDiff:2PageRef:2931AACSB:UseofITCASE:ContentObjective:6.44Copyright©2012PearsonEducation,Inc.19)Dataadministrationisaspecialorganizationalfunctionthatmanagesthepoliciesandproceduresthroughwhichdatacanbemanagedasanorganizationalresource.Answer:TRUEDiff:2PageRef:230AACSB:UseofITCASE:ContentObjective:6.520)Datacleansingisthesameprocessasdatascrubbing.Answer:TRUEDiff:1PageRef:231AACSB:UseofITCASE:ContentObjective:6.521)Whichofthefollowingbestillustratestherelationshipbetweenentitiesandattributes?A)theentityCUSTOMERwiththeattributePRODUCTB)theentityCUSTOMERwiththeattributePURCHASEC)theentityPRODUCTwiththeattributePURCHASED)theentityPRODUCTwiththeattributeCUSTOMERAnswer:BDiff:3PageRef:210AACSB:AnalyticSkillsCASE:AnalysisObjective:6.322)Whichofthefollowingisnotoneofthemainproblemswithatraditionalfileenvironment?A)datainconsistencyB)program-dataindependenceC)lackofflexibilityincreatingad-hocreportsD)poorsecurityAnswer:BDiff:2PageRef:211AACSB:UseofITCASE:AnalysisObjective:6.123)ADBMSreducesdataredundancyandinconsistencybyA)enforcingreferentialintegrity.B)uncouplingprogramanddata.C)utilizingadatadictionary.D)minimizingisolatedfileswithrepeateddata.Answer:DDiff:3PageRef:213AACSB:UseofITCASE:ContentObjective:6.15Copyright©2012PearsonEducation,Inc.24)Acharacteristicorqualitydescribinganentityiscalleda(n)A)field.B)tuple.C)keyfield.D)attribute.Answer:DDiff:1PageRef:210AACSB:UseofITCASE:ContentObjective:6.325)Whichofthefollowingnon-digitaldatastorageitemsismostsimilartoadatabase?A)librarycardcatalogB)cashregisterreceiptC)doctor'sofficeinvoiceD)listofsalestotalsonaspreadsheetAnswer:ADiff:2PageRef:210-211AACSB:AnalyticSkillsCASE:AnalysisObjective:6.126)Theconfusioncreatedby________makesitdifficultforcompaniestocreatecustomerrelationshipmanagement,supplychainmanagement,orenterprisesystemsthatintegratedatafromdifferentsources.A)batchprocessingB)dataredundancyC)dataindependenceD)onlineprocessingAnswer:BDiff:1PageRef:211AACSB:UseofITCASE:ContentObjective:6.127)Duplicatedatainmultipledatafilesiscalleddata________.A)redundancyB)repetitionC)independenceD)partitionsAnswer:ADiff:1PageRef:211AACSB:UseofITCASE:ContentObjective:6.16Copyright©2012PearsonEducation,Inc.28)ADBM
本文标题:mis12-信息系统复习参考6
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