ssd4所有quiz选择题答案.docx
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ssd4所有quiz选择题答案.docx
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ssd4所有quiz选择题答案
SSD4
Quiz1
1.Howmanychunksofinformationcanworkingmemoryholdatonetime?
(a)Nine
(b)One
(c)Five
(d)Three
Correctansweris(d)
Seesection1.1.3ofthecoursenotes.
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2.WhichofthefollowingisadescriptionofFitts'sLaw(费茨法则)?
(a)Thetimeittakestopointtoatargetisaconstant:
ittakesthesameamountoftimetopointtoonetargetasitdoestoanyothertarget.
(b)Thetimeittakestopointtoatargetisdirectlyrelatedtothedistancetothattarget.
(c)Theactionofclickingabuttontakes200msec.
(d)Whencalculatingthetimeittakestopointtoatarget,thesizeofthetargetisnotimportant.
Correctansweris(b)
Seesection1.1.3ofthecoursenotes.
Fitts法则最基本的观点就是任何时候,当一个人用鼠标来移动鼠标指针时,屏幕上的目标的某些特征会使得点击变得轻松或者困难。
目标离的越远,到达就越是费劲。
目标越小,就越难点中。
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3.Whichofthefollowingisanimplicationthatthecharacteristicsofthehumanfoveahaveforthedesignofvisualinterfaces?
(a)Itisimportanttodesignaroundtheeye'sblindspot,whichmakesitdifficulttoseepartsofthescreen.
(b)Becarefulwhenusingblinkingtextoranimationsbecausetheynaturallydrawtheuser'sattention.
(c)Becausethefoveaencompassesonly2degreesofvisualangle,alltextshouldbeconcentratedinasmallareaofthescreen.
(d)Therearenodesignimplications.
Correctansweris(b)
Seesection1.1.3ofthecoursenotes.
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4.Accordingtotheinformationprocessingmodelofhumancognitiveactivity,whichofthefollowinghappenstoinformationfromtheoutsideworldimmediatelyafteritisperceivedbytheperceptualprocessor?
(a)Thecognitiveprocessordeterminesthatanactionneedstobetaken.
(b)Themotorprocessorcompletesanactionbasedontheinformation.
(c)Itisdepositedintoworkingmemory.
(d)Itisdepositedintolong-termmemory.
Correctansweris(c)
Seesection1.1.3ofthecoursenotes.
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5.Feedbackfromusersofthesoftwaresystemswebuildisuseful,andevennecessary.Thisisbecausesuchfeedback
(a)pleasesusersbyshowingthatweareinterestedintheiropinion.
(b)helpsusselectthebestofourusers.
(c)helpsusassignblameamongtheprogrammersinourteam.
(d)istheonlywaytodiscoverunforeseenshortcomingsofoursoftware.
Correctansweris(d)
Seesection1.1.1ofthecoursenotes.
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6.Softwarecompaniesoftenreleaseso-called"beta"versionsofsoftware.Abetaversionofaprogramisusuallygivenawaytoaselectedgroupofuserswhoagreetotestandcommentontheprogrambeforeitisreleasedtothewidermarket.Acompanythatreleasesbetaversionsisthusengagingin
(a)iterativedesign.
(b)leverageofaffordance.
(c)word-of-mouthadvertising.
(d)aggressivemarketing.
Correctansweris(a)
Seesection1.1.1ofthecoursenotes.
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7.Theevent-redrawloopis
(a)anaffordancecommonlyfoundindrawingprograms.
(b)aprogrammingconstructusedinredrawingeventobjectsonthescreen(e.g.,ameetinginaschedulingprogram).
(c)abuilt-inJavamethodinvokedwhenyouthrowanexceptionforavisibleicon.
(d)themainprogrammingconstructofinteractiveprograms.
Correctansweris(d)
Aninteractiveprogramlistensforeventsandreactstothem.Thereactionusuallyinvolvessomeredrawingofthescreen.Becausearesponsiveprogramneedstolistenforeventsconstantly,evenwhileitdoesotherthings,thisevent-redrawloophastobethemainconstructoftheprogramintowhichallotherfunctionsareincorporated.Seesection1.1.2ofthecoursenotes.
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8.When,onyourcomputerscreen,youdragtheimageofafoldertoadifferentwindow,youare
I.directlymanipulatingthebitsofthediskfile.
II.manipulatinganimagethatrepresentsthebitsofthediskfile.
III.generatingmouseeventsthatcausethewindowsinterfaceprogramtoredrawtheimageofthefoldercontinuously,indifferentlocations,asitappearstomove.
(a)IIIonly.
(b)IIandIIIonly.
(c)IIonly.
(d)Ionly.
Correctansweris(b)
Seesection1.1.2ofthecoursenotes.
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9.Yoursupervisorhasrequestedthatyouuseatoolkittobuildafancynewuserinterface,andshehasgivenyouthefollowingreasonstodoso(besidesenticingyouwithapromiseofapayraise):
I.Toolkitshavewidgetsthatallowyoutogenerateprototypesrapidly.
II.Ifyouusethesametoolkits,alloftheprogramsyouwritewillhaveinterfaceswithasimilarlookandfeel.
III.TheInternetrequiresthatweusetheprescribedopen-standardUItoolkits.
Whichofthereasonsaresound?
(Again,besidesthepayraise!
)
(a)Ionly.
(b)IandIIonly.
(c)IIonly.
(d)IIandIIIonly.
Correctansweris(b)
Seesection1.1.2ofthecoursenotes.
Quiz2
1.ValidVisualBasicdatatypesincludewhichofthefollowing?
I.Boolean
II.String
III.VariantType
(a)IIandIIIonly
(b)IandIIonly
(c)I,II,andIII
(d)Ionly
Correctansweris(c)
Seepage165ofyourtextbook.
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2.WhichofthefollowinglinescontainsonlyvalidVisualBasicequationoperators?
I.-+*/
II.\^Mod
III.-+*/\^>>
(a)I,II,andIII
(b)IandIIonly
(c)IIandIIIonly
(d)IandIIIonly
Correctansweris(b)
Seepageyourtextbook.
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3.InVisualBasic,whattypesofvariablesshouldyouusewhenstoringnumberswithdecimalfractions?
I.variant,string,orobject
II.single,double,ordecimal
III.integer,long,orBoolean
(a)IIonly
(b)IandIIIonly
(c)IIIonly
(d)Ionly
Correctansweris(a)
Seeyourtextbook.
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4.Atruntime,youwanttochangetheappearanceofaVisualBasiccontrolnamed"cmdExit"sothatitappears"flat.""cmdExit"belongstotheformnamed"frmInput."Whichofthefollowingstatementswouldyouuse?
(a)cmdExit.FlatStyle.frmInput=FlatStyle.Flat
(b)cmdExit.FlatStyle=FlatStyle.Flat
(c)cmdExit.FlatStyle("Flat")
(d)cmdExit.FlatStyle=Flat
Correctansweris(b)
Seepage132ofyourtextbook.
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5.AnOptionExplicitOnstatementinaform'sGeneralDeclarationssectioncausesVisualBasic
(a)toassignastringdatatypetoallundeclaredvariables.
(b)torequirethatDimandPublicstatementshaveAsdatatypeclauses.
(c)toinitializestringvariableswithzero-lengthstrings.
(d)toflagundeclaredvariablesaserrorsatcompiletime.
Correctansweris(d)
Seepages171–3ofyourtextbook.
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6.TheCodewindowofaVisualBasicobjectcanbeopenedbyselectingtheobjectand
(a)clickingtherightmousebutton.
(b)double-clickingtheleftmousebutton.
(c)pressingCtrl-F1.
(d)pressingF12.
Correctansweris(b)
Seepage60ofyourtextbook.
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7.WhichofthefollowingarevalidVisualBasicvariablenames?
I.curAccountsReceivable
II.3ndPlaceEntrystr
III.Month_To_Datedbl
(a)IandIIIonly
(b)I,II,andIII
(c)IIIonly
(d)Ionly
Correctansweris(c)
Month_To_Datedblisavalidnameeventhoughitdoes
notfollowtheconventionssuggestedinthetextbook.
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8.InVisualBasic,whichofthefollowingValfunctionstatementswillreturnavalueequaltoorlessthan32?
I.Val("32,543,987")
II.Val(".98")
III.Val("thirty-seven")
(a)IandIIonly
(b)IIonly
(c)I,II,andIII
(d)IIandIIIonly
Correctansweris(c)
Seepage143ofyourtextbook.
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9.ATOEchartis
(a)agridusedtocorrelatethenamesoflocal,form-level,andglobalvariableswiththeirproperties.
(b)theverbalequivalentofaflowchart.
(c)atechniqueforplanningobject-oriented,event-drivenapplicationsbycreatingatablethatcorrelatesproposedtaskswithcorrespondingobjectsandevents.
(d)aroughsketchofaplannedinterface.
Correctansweris(c)
Seepage97ofyourtextbook.
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10.WhichoftheVisualBasiccontrolpropertieslistedbelowholdsthevalueyouwillusewhensettingotherpropertiesofthesamecontrolfromaneventhandler?
(a)Caption
(b)Index
(c)Tag
(d)(Name)
Correctansweris(d)
Seeyourtextbook.
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3.WithwhichofthefollowingdodevelopersspecifythetaskortasksaVisualBasiccontrolistoperformwhenausermanipulatesit?
(a)TOEtables
(b)flowcharts
(c)behaviorproperties
(d)code
Correctansweris(d)
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10.TheVisualBasicProper
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