mis12信息系统复习参考5

1Copyright©2012PearsonEducation,Inc.ManagementInformationSystems,12e(Laudon)Chapter5ITInfrastructureandEmergingTechnologies1)ITinfrastructuretechnologyispurelyasetofphysicaldevicesandsoftwareapplicationsthatarerequiredtooperatetheentireenterprise.Answer:FALSEDiff:1PageRef:165AACSB:UseofITCASE:ContentObjective:5.12)Client/servercomputingisawidelyusedformofcentralizedprocessing.Answer:FALSEDiff:2PageRef:168AACSB:UseofITCASE:ContentObjective:5.13)Ingreencomputing,reducingcomputerpowerconsumptionisatoppriority.Answer:TRUEDiff:1PageRef:184AACSB:UseofITCASE:ContentObjective:5.34)N-tiercomputingisamulti-tier,load-balancingschemeforWeb-basedapplicationsinwhichsignificantpartsofWebsitecontent,logic,andprocessingareperformedbysmaller,lessexpensiveserverslocatednearbytheuser.Answer:TRUEDiff:3PageRef:169AACSB:UseofITCASE:ContentObjective:5.15)ApplicationserversoftwareisresponsibleforlocatingandmanagingstoredWebpages.Answer:FALSEDiff:2PageRef:169AACSB:UseofITCASE:ContentObjective:5.12Copyright©2012PearsonEducation,Inc.6)AnapplicationservermayresideonthesamecomputerasaWebserveroronitsowndedicatedcomputer.Answer:TRUEDiff:2PageRef:169AACSB:UseofITCASE:ContentObjective:5.17)Enterpriseintegrationrequiressoftwarethatcanlinkdisparateapplicationsandenabledatatoflowfreelyamongdifferentpartsofthebusiness.Answer:TRUEDiff:2PageRef:169-170AACSB:UseofITCASE:ContentObjective:5.28)Themainframemarkethasgrownsteadilyoverthepastdecade.Answer:TRUEDiff:2PageRef:177AACSB:UseofITCASE:ContentObjective:5.29)Theoperatingsystemisusedtomanagethecomputer'sactivities.Answer:TRUEDiff:1PageRef:177AACSB:UseofITCASE:ContentObjective:5.110)LikeanASP,aWebhostingserviceprovidessharedapplicationstosubscribedusers,butdoesthisthroughaWebportal.Answer:FALSEDiff:2PageRef:180AACSB:UseofITCASE:ContentObjective:5.111)SANscreatelargecentralpoolsofstoragethatcanberapidlyaccessedandsharedbymultipleservers.Answer:TRUEDiff:2PageRef:180AACSB:UseofITCASE:ContentObjective:5.13Copyright©2012PearsonEducation,Inc.12)AutonomiccomputingisimplementedprimarilywithenterpriseorISPservers.Answer:FALSEDiff:2PageRef:185AACSB:UseofITCASE:ContentObjective:5.313)Javasoftwareisdesignedtorunonanycomputerorcomputingdevice,regardlessofthespecificmicroprocessororoperatingsystemituses.Answer:TRUEDiff:1PageRef:188AACSB:UseofITCASE:ContentObjective:5.414)Webservicescanexchangeinformationbetweentwodifferentsystemsregardlessoftheoperatingsystemorprogramminglanguagesonwhichthesystemsarebased.Answer:TRUEDiff:2PageRef:189AACSB:UseofITCASE:ContentObjective:5.415)WhereasXMLislimitedtodescribinghowdatashouldbepresentedintheformofWebpages,HTMLcanperformpresentation,communication,anddatastoragetasks.Answer:FALSEDiff:1PageRef:189AACSB:UseofITCASE:ContentObjective:5.416)Hypertextmarkuplanguagespecifieshowtext,graphics,video,andsoundareplacedonaWebpagedocument.Answer:TRUEDiff:1PageRef:189AACSB:UseofITCASE:ContentObjective:5.417)ThecollectionofWebservicesthatareusedtobuildafirm'ssoftwaresystemsconstituteswhatisknownasaservice-orientedarchitecture.Answer:TRUEDiff:2PageRef:190AACSB:UseofITCASE:ContentObjective:5.44Copyright©2012PearsonEducation,Inc.18)Todaymostbusinessfirmshavediscontinuedoperatingtheirlegacysystems,replacingthesewithinexpensiveWebservicesandhostedsoftware.Answer:FALSEDiff:2PageRef:191AACSB:UseofITCASE:ContentObjective:5.419)Scalabilityreferstotheabilityofacomputer,product,orsystemtoexpandtoservealargenumberofuserswithoutbreakingdown.Answer:TRUEDiff:1PageRef:194AACSB:UseofITCASE:ContentObjective:5.520)TCOreferstotheoriginalcostofpurchasedtechnology:bothhardwareandsoftware.Answer:FALSEDiff:1PageRef:195AACSB:UseofITCASE:ContentObjective:5.521)WhichofthefollowingisNOTanITinfrastructureservicecomponent?A)operatingsystemsoftwareB)computingplatformstoprovideacoherentdigitalenvironmentC)physicalfacilitymanagementtomanagethefacilitieshousingphysicalcomponentsD)ITmanagementservicestoplananddeveloptheinfrastructureandprovideprojectmanagementAnswer:ADiff:1PageRef:165-166AACSB:UseofITCASE:ContentObjective:5.122)Whichtypeofinfrastructureservicesprovidesvoiceandvideoconnectivitytoemployees,customers,andsuppliers?A)networkingB)telephoneC)VOIPD)telecommunicationsAnswer:DDiff:1PageRef:164AACSB:UseofITCASE:ContentObjective:5.15Copyright©2012PearsonEducation,Inc.23)PlacethefollowingerasofITinfrastructureevolutioninorder,fromearliesttomostrecent:(1)CloudComputingEra(2)Client/Server,(3)EnterpriseEra,(4)PersonalComputer,and(5)MainframeandMinicomputer.A)4,5,3,2,1B)5,4,2,3,1C)4,5,2,3,1D)5,4,2,1,3Answer:ADiff:2PageRef:166-170AACSB:AnalyticSkillsCASE:SynthesisObjective:5.224)TheintroductionoftheminicomputerA)allowedcomputerstobecustomizedtothespecificneedsofdepartmentsorbusinessunits.B)enableddecentralizedcomputing.C)offerednew,powerfulmachinesatlowerpricesthanmainframes.D)alloftheabove.Answer:DDiff:2PageRef:168AACSB:UseofITCASE:ContentObjective:5.225)Aclientcomputernetworkedtoaservercomputer,withprocessingsplitbetweenthetwotypesofmachines,iscalleda(n)A)service-orientedarchitecture.B)on-demandarchitecture.C)multi-tiere