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Cisco 3 50 -901 Exam Cisco Developing Applications using Cisco Core Platforms and APIs (DEVCOR) Ex am Questions & Answers Demo
Questions&AnswersPDF Page2 Question:1 Adeveloperhascreatedanapplicationbasedoncustomerrequirements.Thecustomerneedstorunthe application with the minimumdowntime. applications,RecoveryTimeObjective,andRecoveryPointObjectivemustbetaken? Which design approach regarding high-availability A. Active/passiveresultsinlowerRTOandRPO. centersmustbetimelytoallowseamlessrequestflow. B. Active/passiveresultsinlowerRTOandRPO. centersdoesnotneedtobetimelytoallowseamlessrequestflow. C. Active/activeresultsinlowerRTOandRPO. centersdoesnotneedtobetimelytoallowseamlessrequestflow. D. Active/activeresultsinlowerRTOandRPO. centersmustbetimelytoallowseamlessrequestflow. ForRPO, datasynchronizationbetweenthetwodata ForRPO, datasynchronizationbetweenthetwodata ForRPO, datasynchronizationbetweenthetwodata ForRPO, datasynchronizationbetweenthetwodata Answer:A Question:2 DRAGDROP Anapplicationisbeingbuilttocollectanddisplaytelemetrystreamingdata.Draganddroptheelements ofthisstackfromtheleftontothecorrectelementfunctionsontheright. Answer:
Questions&AnswersPDF Page3 Question:3 Acloudnativeprojectisbeingworkedoninwhichall Python, Ruby, and/orJavaScnpt. AchangeincodetriggersanotificationtotheCI/CDtool CI/CDpipeline. Whichstepshouldbeomittedfromthepipeline? sourcecodeanddependenciesarewrittenin torunthe A.Deploythecodetooneormoreenvironments,suchasstagingand/orproduction. B.Buildoneofmorecontainersthatpackageupcodeandallitsdependencies. C.Compilecode. D.Runautomatedteststovalidatethecorrectness. Answer:A Question:4 Whichtwostatementsareconsideredbestpracticesaccordingtothe12-factorappmethodologyfor applicationdesign?(Choosetwo.) A.Applicationcodewritesitseventstreamtostdout. B.Applicationlogstreamsarearchivedinmultiplereplicateddatabases. C.Applicationlogstreamsaresenttologindexingandanalysissystems. D.Applicationcodewritesitseventstreamtospecificlogfiles. E.Logfilesareaggregatedintoasinglefileonindividualnodes. Answer:AD Question:5 Anorganizationmanagesalargecloud-deployedapplicationthatemploysamicroservicesarchitecture. Nonotableissues occur withdowntimebecausetheservices deployedoverthreeormoredatacenterregions.However,several of this applicationareredundantly timesaweekreportsarereceived
Questions&AnswersPDF Page4 aboutapplicationslowness.Thecontainerorchestrationlogsshowfaultsinavarietyofcontainersthat causethemtofailandthenspinupbrandnew. Whichactionmustbetakentoimprovetheresiliencydesignoftheapplicationwhilemaintainingcurrent scale? A.Updatethebaseimageofthecontainers. B.Testtheexecutionoftheapplicationwithanothercloudservicesplatform. C.Increasethenumberofcontainersrunningperservice. D.Addconsistent“try/catch(exception)”clausestothecode. Answer:D Question:6 Howshouldawebapplicationbedesignedtoworkonaplatformwhereupto1000requestspersecond canbeserved? A.Usealgorithmslikerandomearlydetectiontodenyexcessiverequests. B.Setaper-userlimit(forexample,5requests/minute/user)anddenytherequestsfromtheuserswho havereachedthelimit. C.Only1000userconnectionsareallowed;furtherconnectionsaredeniedsothatall canbeserved. D.Allrequestsaresavedandprocessedonebyonesothatalluserscanbeservedeventually. connectedusers Answer:D Question:7 Anorganizationmanagesalargecloud-deployedapplicationthatemploysamicroservicesarchitecture across multipledata centers. Reports havereceivedabout orchestrationlogsshowthatfaultshavebeenraisedinavarietyofcontainersthatcausedthemtofail andthenspinupbrandnewinstances. Whichtwoactionscanimprovethedesignoftheapplicationtoidentifythefaults?(Choosetwo.) applicationslowness. Thecontainer A.Automaticallypulloutthecontainerthatfailsthemostoveratimeperiod. B.Implementataggingmethodologythatfollowstheapplicationexecutionfromservicetoservice. C.Addloggingonexceptionandprovideimmediatenotification. D.Doawritetothedatastoreeverytimethereisanapplicationfailure. E.ImplementanSNMPloggingsystemwithalertsincaseanetworklinkisslow. Answer:BC Question:8 Whichtwosituationsareflaggedbysoftwaretoolsdesignedfordependencycheckingincontinuous integrationenvironments,suchasOWASP?(Choosetwo.)
Questions&AnswersPDF Page5 A.publiclydisclosedvulnerabilitiesrelatedtotheincludeddependencies B.mismatchesincodingstylesandconventionsintheincludeddependencies C.incompatiblelicensesintheincludeddependencies D.testcasefailuresintroducedbybugsintheincludeddependencies E.bufferoverflowstooccurastheresultofacombinationoftheincludeddependencies Answer:AE Question:9 Anetworkoperationsteamisusingthecloudtoautomatesomeoftheirmanagedcustomerandbranch locations.Theyrequirethatalloftheirtoolingbeephemeralbydesignandthattheentireautomation environmentcanberecreatedwithoutmanualcommands.Automationcodeandconfigurationstatewill bestoredingitforchangecontrol andversioning. Theengineeringhigh-level cloud- providerenvironmentthenconfigureopensourcetoolingontotheseVMstopoll, configuretheremotedevices,aswellasdeploythetoolingitself. Whichconfigurationmanagementand/orautomationtoolingisneededforthissolution? planistouseVMsina test, and A.Ansible B.AnsibleandTerraform C.NSO D.Terraform E.AnsibleandNSO Answer:B Question:10 AnapplicationishostedonGoogleKubernetesEngine.AnewJavaScriptmoduleiscreatedtoworkwith theexistingapplication.Whichtaskismandatorytomakethecodereadytodeploy? A.CreateaDockerfileforthecodebase. B.RewritethecodeinPython. C.Buildawrapperforthecodeto“containerize”it. D.Rebasethecodefromtheupstreamgitrepo. Answer:D