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?
(a)Thetimeittakestopointtoatargetisaconstant:
ittakesthesameamountoftimetopointtoonetargetasitdoestoanyothertarget.
(b)Thetimeittakestopointtoatargetisdirectlyrelatedtothedistancetothattarget.
(c)Theactionofclickingabuttontakes200msec.
(d)Whencalculatingthetimeittakestopointtoatarget,thesizeofthetargetisnotimportant.
Correctansweris(b)
Seesection1.1.3ofthecoursenotes.
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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.Toolkitshavewidgetsthatallowyoutogenerateprototypesrapi
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