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MultipleChoiceQuestions11.Thegeneralroleofanoperatingsystemisto:a.Provideasetofservicestosystemusersb.Managefilesforapplicationprogramsc.Actasaninterfacebetweenvariouscomputersd.Noneoftheabove2.Informationthatmustbesavedpriortotheprocessortransferringcontroltotheinterrupthandlerroutineincludes:a.(PSW)&Contentsofprocessorregistersb.ProgramStatusWord(PSW)c.Noneoftheaboved.(PSW)&Locationofnextinstruction3.Oneacceptedmethodofdealingwithmultipleinterruptsisto:a.Servicetheminround-robinfashionb.Disableallinterruptsexceptthoseofhighestpriorityc.Noneoftheaboved.Defineprioritiesfortheinterrupts4.Inauniprocessorsystem(单处理器系统),multiprogramming(多道程序设计)increasesprocessorefficiencyby:a.Takingadvantageoftimewastedbylongwaitinterrupthandlingb.Eliminatingallidleprocessorcyclesc.Alloftheaboved.Increasingprocessorspeed5.Asoneproceedsdownthememoryhierarchy(i.e.,frominboardmemorytoofflinestorage),thefollowingcondition(s)apply:a.Decreasingcapacityb.Increasingaccesstimec.Alloftheaboved.Increasingcostperbit6.Small,fastmemorylocatedbetweentheprocessorandmainmemoryiscalleda.WORMmemoryb.CD-RWmemoryc.Noneoftheaboved.Cachememory7.Whenanewblockofdataiswrittenintocachememory,thefollowingdetermineswhichcachelocationtheblockwilloccupy:a.Noneoftheaboveb.Cachesizec.Blocksized.Writepolicy8.Thefourmainstructuralelementsofacomputersystemare:a.Noneoftheaboveb.Processor,Registers,MainMemory&SystemBusc.Processor,MainMemory,I/OModules&SystemBusd.Processor,Registers,I/OModules&MainMemory9.Thetwobasictypesofprocessorregistersare:a.User-visibleandControl/Statusregistersb.ControlandStatusregistersc.User-visibleanduser-invisibleregistersd.Noneoftheabove10.Addressregistersmaycontaina.Partialmemoryaddressesb.Memoryaddressesofdatac.Memoryaddressesofinstructionsd.Alloftheabove11.AControl/Statusregisterthatcontainstheaddressofthenextinstructiontobefetchediscalledthe:a.ProgramCounter(PC)b.Alloftheabovec.InstructionRegister(IR)d.ProgramStatusWord(PSW)12.Thetwobasicstepsusedbytheprocessorininstructionprocessingare:a.Noneoftheaboveb.FetchandInstructioncyclesc.FetchandExecutecyclesd.InstructionandExecutecycles13.Afetchedinstructionisnormallyloadedintothe:a.Accumulator(AC)b.Noneoftheabovec.InstructionRegister(IR)d.ProgramCounter(PC)14.Acommonclassofinterruptsisa.Programb.I/Oc.Timerd.Alloftheabove15.Whenanexternaldevicebecomesreadytobeservicedbytheprocessor,thedevicesendsthistypeofsignaltotheprocessor:a.Handlersignalb.Noneoftheabovec.Interruptsignald.HaltsignalMultipleChoiceQuestions21.Aprimaryobjectiveofanoperatingsystemis:a.Abilitytoevolveb.Conveniencec.Efficiencyd.Alloftheabove2.Thepagingsysteminamemorymanagementsystemprovidesfordynamicmappingbetweenavirtualaddressusedinaprogramand:a.Arealaddressinaprogramb.Noneoftheabovec.Avirtualaddressinmainmemoryd.Arealaddressinmainmemory3.Relativetoinformationprotectionandsecurityincomputersystems,accesscontroltypicallyrefersto:a.Theflowofdatawithinthesystemb.Provingthatsecuritymechanismsperformaccordingtospecificationc.Regulatinguserandprocessaccesstovariousaspectsofthesystemd.Noneoftheabove4.Acommonproblemwithfull-featuredoperatingsystems,duetotheirsizeanddifficultyofthetaskstheyaddress,is:a.Sub-parperformanceb.Chronicallylateindeliveryc.Alloftheaboved.Latentbugsthatshowupinthefield5.Atechniqueinwhichaprocess,executinganapplication,isdividedintothreadsthatcanrunconcurrentlyiscalled:a.Noneoftheaboveb.Multithreadingc.Symmetricmultiprocessing(SMP)d.Multiprocessing6.WIN2Ksupportsseveraltypesofuserapplications,including:a.Linuxb.System10c.WIN32d.Noneoftheabove7.KeytothesuccessofLinuxhasbeenitscharacterasafreesoftwarepackageavailableundertheauspicesofthe:a.BerkeleySoftwareDistributionb.FreeSoftwareFoundationc.WorldWideWebConsortiumd.Noneoftheabove8.Theoperatingsystemprovidesmanytypesofservicestoend-users,programmersandsystemdesigners,including:a.Built-inuserapplicationsb.Alloftheabovec.Relationaldatabasecapabilitieswiththeinternalfilesystemd.Errordetectionandresponse9.Theoperatingsystemisunusualinitsroleasacontrolmechanism,inthat:a.Itrunsonaspecialprocessor,completelyseparatedfromtherestofthesystemb.Itneverrelinquishescontrolofthesystemprocessorc.Noneoftheaboved.Itfrequentlyrelinquishescontrolofthesystemprocessorandmustdependontheprocessortoregaincontrolofthesystem10.Operatingsystemsmustevolveovertimebecausea.Userswillonlypurchasesoftwarethathasacurrentcopyrightdateb.Newhardwareisdesignedandimplementedinthecomputersystemc.Alloftheaboved.Hardwaremustbereplacedwhenitfails11.Amajorproblemwithearlyserialprocessingsystemswas:a.Inabilitytogethardcopyoutputb.Setuptimec.Lackofinputdevicesd.Alloftheabove12.Anexampleofahardwarefeaturethatisdesirableinabatch-processingsystemisa.Noneoftheaboveb.Acompletelyaccessiblememoryareac.Largeclockcyclesd.Privilegedinstructions13.Acomputerhardwarefeaturethatisvitaltotheeffectiveoperationofamultiprogrammingoperatingsystemis:a.Verylargememoryb.Multipleprocessorsc.I/OinterruptsandDMAd.Alloftheabove14.Theprincipleobjectiveofatimesharing,multiprogrammingsystemistoa.Maximizeprocessoruseb.Noneoftheabovec.Pr