Operating System - Quiz 1

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1、Q.1)Theminimuminformationthatmustbesavedbeforetheprocessortransferscontroltotheinterrupthandlerroutineisthe____________________A.programstatuswordB.PSW(CorrectAnswer)C.locationofthenextinstructionD.PSWandtheprogramstatuswordE.alloftheaboveQ.2)Thememorydesigndilemma(regardingcostvs.capacityvs.access

2、time)issolvedbyemployinga(n)__________________.Possiblecorrectanswers::memoryhierarchyQ.3)Incachememorydesign,____________sizereferstotheunitofdataexchangedbetweencacheandmainmemoryPossiblecorrectanswers:blockQ.4)Whereisafetchedinstructionnormallyloadedinto?Possiblecorrectanswers:theInstructionRegi

3、sterIRQ.5)__________________aregeneralpurposeinnature,butmayberestrictedtospecifictaskssuchasperformingfloating-pointoperations.A.OperatingsystemsB.Dataregisters(CorrectAnswer)C.memorymanagementregistersD.CentralProcessingUnitE.AlloftheaboveQ.6)Small,fastmemorylocatedbetweentheprocessorandmainmemor

4、yiscalled:A.WORMmemoryB.CD-RWmemoryC.Cachememory(CorrectAnswer)D.NoneoftheaboveQ.7)Informationthatmustbesavedpriortotheprocessortransferringcontroltotheinterrupthandlerroutineincludes:A.ProcessorStatusWord(PSW)B.ProcessorStatusWord(PSW)&ContentsofprocessorregistersC.ProcessorStatusWord(PSW)&Locatio

5、nofnextinstruction(CorrectAnswer)D.NoneoftheaboveQ.8)Adrawbacktothedisableinterruptstrategyofdealingwithmultipleinterruptsisthatitdoesn’taccountfor__________________.Possiblecorrectanswers:prioritizationortime-criticalneedsQ.9)Toaccommodateinterrupts,a(n)___________________isaddedtothebasicinstruct

6、ioncycle.Possiblecorrectanswers:interruptcycleQ.10)DirectMemoryAccess(DMA)operationsrequirethefollowinginformationfromtheprocessor:A.AddressofI/OdeviceB.NumberofwordstobereadorwrittenC.StartingmemorylocationtoreadfromorwritetoD.Alloftheabove(CorrectAnswer)Q.11)Thegeneralroleofanoperatingsystemisto:

7、A.ActasaninterfacebetweenvariouscomputersB.Provideasetofservicestosystemusers(CorrectAnswer)C.ManagefilesforapplicationprogramsD.alloftheaboveE.NoneoftheaboveQ.12)Generalpurposecomputersrunmostoftheirprogra