in3240 / in4240 / inf3121 / inf4121 software testing 2019 ... · system testing component testing...

IN3240/IN4240/INF3121/INF4121Softwaretesting2019

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Dayofexam:May27th,2019Examhours:14:30-18:30Permittedmaterials:NoneReadthispagethoroughlyTheassignmentconsistsoffiveparts.Thefirstpartisthisintroduction,whileyoushallanswerthenextfoursections.

Part2-MultipleChoicequestions

15multiplechoicequestionsQuestionswithoneansweralternative:1pointforcorrectanswerQuestionswithmorethanoneansweralternative:1pointforeachcorrectanswer,-1foreachwronganswer.However,itisnotpossibletogetlessthanzeropointsforaquestion.Matchingquestions:1pointforeachsuccessfullmatch.Maximumscoreforpart2:30points

Part3-textexercises

6textassignmentstobeansweredbrieflyandaccurately.Thenumberofpointsmayvaryfromquestiontoquestion.Maximumscoreforpart3:30points.Inthispartyoucandrawsketchesasasupplementtooneofyourtextanswers(assignment3.2).Readthelastparagraphofthistitlepagethoroughly.

Part4-Useoftesttechniques

Twotestcases.10pointsforcorrectsolutionofeachcase.Maximumscoreforpart4:20points.Inthispartyoucandrawsketchesasasupplementtoyourtextanswers.Readthelastparagraphofthistitlepagethoroughly.

Part5-Textaboutagiventopic

Maximumscoreforpart5:20points

Ifanytasksareunclear,youcanmakeyourownprerequisites.Ifso,pleaseexplainthem.SketchingInthisthesisyouwillbeabletosupplement3ofthetextassignmentswithdigitalhandwritingassignment(assignments3.2,4.1and4.2).Youusethesketchsheetsyouaregiven.Itispossibletousemultiplesheetspertask.Seeinstructionsforfillingoutthesketchsheetonthedesk.YoumayNOThandinsketchsheetsforanyotherassignmentsthanassigments3.2,4.1and4.2.YouwillNOTbegivenextratimetofilloutthe"generalinformation"onthesketchingsheets(taskcodes,candidatenumberetc.)


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2.1 Matchthefollowingprocesseswiththeircorrespondingactivities:

Transformthetestobjectivesintotest

conditions

Grouptestsintoscripts

Writeatestsummaryreportforthestakeholders

Establishthescopeandobjectivesofthe

testing

Testreporting

Testanalysis

Testplanning

Testimplementation

Maximummarks:4

2.2 Whenusingstructure-based(white-box)testtechniques,whichofthefollowingalternativescouldbeusedtoassessthecoverage?Selectoneormorealternatives:

Conditionsormultipleconditionsexercised

Boundariesexercised

Decisionoutcomesexercised

Partitionsexercised

Statementsexercised

Maximummarks:3

2.3 Whichofthefollowingisabenefitoftestindependence?Selectonealternative:

Itdoesnotrequirefamiliaritywiththecode.

Independenttesterssometimesquestiontheassumptionsbehindrequirements,designsandimplementations.

Itischeaperthanusingdeveloperstotesttheirowncode.

Testersarebetteratfindingdefectsthandevelopers.

Maximummarks:1


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2.4 Aspartofwhichtestprocessdoyoudeterminetheexitcriteria?Selectonealternative:

Evaluatingexitcriteriaandreporting

Testplanning

Testcontrol

Testclosure

Maximummarks:1

2.5 AccordingtotheISTQBGlossary,whichofthefollowingalternativesisatesttype?Selectonealternative:

Systemtesting

Componenttesting

Functionaltesting

Acceptancetesting

Maximummarks:1

2.6 Aprogramvalidatesanumericfieldasfollows:Valueslessthan10arerejected,valuesbetween10and21areaccepted,valuesgreaterthanorequalto22arerejected.Whichofthefollowinginputvaluescoveralloftheequivalencepartitions?Selectonealternative:

3,20,21

3,10,22

10,21,22

10,11,21

Maximummarks:1


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2.7 Whichofthefollowingaretypicalactivitiesforatester:Selectoneormorealternatives:

Writestestsummaryreportsformanagement

Introducesmetricsformeasuringthetestprogress

Writesautomatedtests

Givesrecommendationstocontinueorstopthetesting,basedonthetestexecutionresults

Evaluatestheresultsoftheexecutionoftests:passorfail

Acquiresandpreparestestdata

Maximummarks:3

2.8 Whichofthefollowingaretypicalactivitiesforatestleader:Selectoneormorealternatives:

Writestestsummaryreportsformanagement

Writesautomatedtests

Evaluatestheresultsoftheexecutionoftests:passorfail

Acquiresandpreparestestdata

Introducesmetricsformeasuringthetestprogress

Givesrecommendationstocontinueorstopthetesting,basedonthetestexecutionresults

Maximummarks:3

2.9 Whatisbetatesting?Selectonealternative:

Testingperformedbyproductdevelopersatthecustomer'slocation.

Testingperformedbyproductdevelopersattheirownlocations.

Testingperformedbypotentialcustomersattheirownlocations.

Testingperformedbypotentialcustomersatthedeveloper'slocation.

Maximummarks:1


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2.10 ImpactAnalysishelpstodecide...Selectonealternative:

howmanymoretestcasesneedtowritten.

exitcriteria.

differenttoolstoperformregressiontesting.

howmuchregressiontestingshouldbedone.

Maximummarks:1

2.11 Whichofthefollowingsarenon-functionalqualitycharacteristics?Selectoneormorealternatives:

Configurationability

Portability

Regression

Usability

Coverage

Maximummarks:2

2.12 WhichofthefollowingisMOSTcharacteristicofspecificationbased(black-box)techniques?

Selectonealternative:

Testcasescanbeeasilyautomated.

Testcasesareindependentofeachother.

Testcasesarederivedsystematicallyfromthedeliveredcode.

Testcasesarederivedsystematicallyfrommodelsofthesystem.

Maximummarks:1


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2.13 WhichofthefollowingoftypesoftoolsisMOSTLIKELYtobeusedbydevelopers?Selectoneormorealternatives:

Staticanalysistools

Testmanagementtools

Dynamicanalysistools

Modelingtools

Performancetestingtools

Maximummarks:3

2.14 Whatdeterminesthelevelofrisk?Selectonealternative:

Thecostofdealingwithanadverseeventifitoccurs.

Theamountoftestingplannedbeforereleaseofasystem.

Theprobabilitythatanadverseeventwilloccur.

Thelikelihoodofanadverseeventandtheimpactoftheevent.

Maximummarks:1

2.15 MatcheverystageoftheSoftwareDevelopmentLifecyclewiththecorrecttestlevel:

Pleasematchthevalues:

Functionalandnon-functionalrequirements

Globaldesign

Businessrequirements Code

Integrationtests

Acceptancetests

Unittests

Systemtests

Maximummarks:4


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3.1 OneoftheseventestingprinciplesiscalledDefectclustering.Whatdoes"Defectclustering"meanandhowdoesitaffectthetestingactivities?Whataretheremainingsixprinciples?Fillinyouranswerhere

Words:0

Maximummarks:8


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3.2 Notethatinthistaskyoucananswerbothinthetexteditorandwithsketches/drawings.Usethesketchingpaperhandedtoyouintheexamroom.Seeinstructionsonyourdesk.

DrawafigureoftheV-modelthatshowsthedifferenttestactivitiesandthedifferentstestlevels.Thefigureshouldcontainarrowsthatshowtheworkflowsandhowthedifferenttestactivitiesandtestlevelsarerelated.

Fillinyouranswerhere

Words:0

Maximummarks:5


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3.3Equivalencepartitioning(EP)andboundaryvalueanalysis(BVA)canbeappliedmorethanoncetothesameitemspecification,dependingwhatwearefocusingon.YoushallnowuseEPandBVAinthefollowingcase:Acompanyusesfourdigitpincodesontheirdoors.Thepin-codesareintherange1000–9999,bothboundariesincluded.Inthiscase,youshalluseEPandBVAinatleastthreedifferentwayswithrespecttodifferentpointsofview.Foreachway,youshallidentify:

theequivalencepartitions,bothvalidand,ifpresent,invalidpartitionsand,ifpresent,boundaryvalues


Words:0

Maximummarks:5


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3.4 Anintegerthatisequaltothesumofallitsrealfactors,includingone(1)iscalledaperfectnumber.

Arealfactormeansafactorsmallerthanthenumberitself.

StudytheJavacodebelow:

WritethenecessaryJavaunittest(s),i.e.thetestmethod(s),fortheJavamethodabove.Fillinyouranswerhere

Words:0

Maximummarks:5


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3.5Explainthedifference(s)betweentestexecutiontoolsanddynamicanalysistoolswithrespecttotheirpurposes.

Whatfunctionsdotheysupport?Whousesthem?Whenaretheyusedandwhatkindofdefectsmighttheydiscover?


Words:0

Maximummarks:5


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3.6 Explainthefollowingterms:

regressiontestingconfirmationtesting


Words:0

Maximummarks:2

4.1 Notethatinthistaskyoucananswerbothinthetexteditorandwithsketches/drawings.Usethesketchingpaperhandedtoyouintheexamroom.Seeinstructionsonyourdesk.

AMusicAcademyhasthefollowingadmissionrequirements:

Theapplicantmusthavegeneralacademicqualifications.

Theapplicantmusthavepassedapracticalmusictest.

Theapplicantmusthavecompetitionpointsabovetheyear’sminimum.

Ifalltherequirementsabovearefulfilled,theapplicantwillbeofferedanordinarystudyplace.However,iftheapplicanthasgeneralacademicqualifications,butdoesnotfulfillthesecondorthirdrequirementsabove,thefollowingactionswillbetaken:

Theapplicantisplacedonawaitinglistifheorshehaspassedthepracticalmusictestbuthascompetitionpointsbelowtheyear’sminimum.

Theapplicantisofferedasecondchancetotakethepracticalmusictestifheorshedidnotpassthistestinthefirstplacebuthascompetitionpointsabovetheyear’sminimum.

a)Drawadecisiontablethatshowsallthepossiblecombinationsofconditionsforanapplicant.Thedecisiontableshallincludeanactionpartthatshowswhethertheapplicantisofferedastudyplaceorisplacedonawaitinglistorisofferedasecondchancetopassthepracticalmusictest.b)Reducethenumberofrulesasmuchaspossiblewhilestillretainingallinformation.Explainhowyoumadethereduction.

c)Considerthefollowingthreedifferenttestcases:


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1. Theapplicantisacademicallyqualified,haspassedthepracticalmusictest,andhascompetitionpointsabovetheyear’sminimum.

2. Theapplicantisacademicallyqualified,haspassedthepracticalmusictest,buthascompetitionpointsbelowtheyear’sminimum.

3. Theapplicantisacademicallyqualifiedandhascompetitionpointsabovetheyear’sminimumbutdidnotpassthepracticalmusictest.

Doweneedmoretestcases?Ifyes,specifythetestcase(s).

Inordertoobtainstudentswiththebestmusicabilitiesandskills,theMusicAcademyis,inspecialcases,willingtodepartfromtheadmissionrules:

Ifanapplicantshowsimpressivemusicabilitiesandskillsonthepracticalmusictestbutlacksgeneralacademicqualifications,heorshemaybeofferedastudyplaceontheconditionthatgeneralacademicqualificationsareacquiredduringthefirstyearattheMusicAcademy.

d)Howmanydifferentcombinationsofvaluesofconditionswilltherebeinthedecisiontableifallconditionsandcombinationsareincluded?Howdoesthenumberofconditionsaffecttheuseofdecisiontables?


Words:0

Maximummarks:10

4.2 Notethatinthistaskyoucananswerbothinthetexteditorandwithsketches/drawings.Usethesketchingpaperhandedtoyouintheexamroom.Seeinstructionsonyourdesk.Amedicalcenterwillinstallapaymentmachineforpatientstopayfortheirmedicalconsultations.Beforestartingtousethepaymentmachine,thecenterwantstoperformsomeuserteststhatyouwillhelpdesign.

Intheenclosedpdfdocument,youwillfindastatetransitiondiagramthatdescribesthepaymentmachineaswellastheinteractionbetweenthemachineandtheuser.NB!Youshallnotjudgewhetherthestatetransitiondiagramiscorrectornotbutbaseyouranswersonitasitis.


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a)Basedonthestatetransitiondiagraminthepdfdocument,youshallnowsetupatestcaseasapath(sequenceofstates)thatdescribesthemainscenario,i.e.asuccessfulpaymenttransaction.

Whatisthestatecoverageofthistestcase?Whatisthetransitioncoverageofthistestcase?

b)Whatisthehighesttransitioncoveragewecanachieveinonesingletestcase?


c)Howmanytestcasesdoweneedtoachieve100%transitioncoverage?


d)FindtheshortestpathfromS0toSXthatvisitseverystate.


e)Whyis100%statecoverageinmostcasesnotenoughasanexitcriterionfortesting?


Words:0

Maximummarks:10


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5.1Writeatextdescribingpotentialbenefitsaswellasrisksofusingtoolsthatsupporttesting.

Whatarethebenefits?Whatrisksshouldwebeawareof?

Youshouldrecognizethatsometoolshavespecialconsiderations.Explainthespecialconsiderationsrelatedto

TestexecutiontoolsPerformancetestingtoolsStaticanalysistoolsTestmanagementtools


Words:0

Maximummarks:20

Question 23Attached

S0: Machine in starting position, waiting to be touched

User touches the screen

S1: Message on screen:

“Enter your birth date”

S2: Machine evaluates the birth date

User enters the birth date

Invalid date of birth

Valid date of birth

Cancel

Cancel

S3: Message on the screen:

“Invalid birth date, try again!”

S4: The patient's name appears on the screen

along with the amount to be paid.Message on the screen: «Insert your credit card and enter your pin code"The user inserts the card and enters code

Invalid card or code

Valid card and code


“Invalid card or code, try again!”


“Account charged. Receipt? (Y/N)”Y N

S8: Receipt printed S9: Message on the screen:

“Please remove your credit card”

SX: Message on the screen:

“Have a nice day!”

User removes the card

Machine returns to start position

S5: Machine evaluates card and code

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