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QUESTION 51
You are developing a Universal Windows Platform (UWP) app.
The application architecture uses the Model-View-ViewModel (MVVM) pattern.
You are designing a form to add new contacts to the app.
The form contains an input field named LastName and a Save button.
You need to ensure that when LastName is empty, the Save button is disabled.
What should you use?
A. On the Save button, change the IsDefaulted property and the IsDefault property.
B. Use an InputType enumeration that has a Command member.
C. Use a CommandBinding object that contains a CanExecute event.
D. On the Save button, change the IsSealed value.
Answer: C
QUESTION 52
You are developing a Universal Windows Platform (UWP) app that will display a list of contacts.
When the app loads, it will display the alphabet and provide users with the ability to zoom in on a letter to display all of the contacts whose name starts with that letter. The app will use a SemanticZoom control.
You need to identify which event you must use in the app.
Which event should you identify?
A. ViewChangeStarted
B. Loaded
C. Tapped
D. ManipulationStarted
Answer: A
QUESTION 53
You are developing a Universal Windows Platform (UWP) app that will be published to the Microsoft Store.
You need to change the name of the app that will be displayed in the Store.
Which file should you modify?
A. App.xaml.cs
B. Package.appxmanifest
C. AssemblyInfo.cs
D. Project.json
Answer: D
QUESTION 54
You need to provide license metadata to the current app. Which class should you use?
A. Listinglnformation
B. Licenselnformation
C. ProductListing
D. ProductLicense
Answer: C
QUESTION 55
Drag and Drop Question
You are evaluating the use of GitHub and Microsoft Visual Studio Team Services.
You need to identify a source control solution for application code.
The solution must meet the following requirements:
– Ensure that multiple branches can be created.
– Provide continuous integration with Microsoft Azure web apps.
– Ensure that multiple developers can modify the same file simultaneously.
Which repositories can be used to achieve each requirement? To answer, drag the appropriate repositories to the correct requirements.
Each repository may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
QUESTION 56
Hotspot Question
You are designing a Universal Windows Platform (UWP) app that will access external data sources. The data sources have the following requirements:
– The data must be stored in a relational database.
– The data sources must be stored in a public cloud.
– The app must not connect directly to the database.
– The app must access the data sources by using HTTP verbs.
You need to identify the appropriate data storage type and the appropriate method to use to access the data sources.
What should you identify? To answer, select the appropriate options in the answer area.
Answer:
QUESTION 57
You are developing a Universal Windows Platform (UWP) app that will retrieve data from a Microsoft Azure SQL Database. The app will be used by multiple users simultaneously.
You need to ensure that the app can use optimistic concurrency.
What should you do?
A. Add a column named TimeStamp that contains the last date the row was modified.
B. When data is accessed, set the transaction isolation level to ReadCommitted.
C. When data is accessed, set the transaction isolation level to ReadUncommitted.
D. Add a column of the Boolean type named Lock that will be set to true when a user readsthe row.
Answer: A
QUESTION 58
Drag and Drop Question
You are developing a Universal Windows Platform (UWP) app.
All of the code sources are hosted in GitHub.
You need to create a new branch in GitHub.
What commands should you run? To answer, drag the appropriate values to the correct targets. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
QUESTION 59
Drag and Drop Question
You are developing a Universal Windows Platform (UWP) app.
The app manipulates accounts by using a class named Account that you developed.
You need to automate tests for the debit method of the Account class.
How should you complete the code? To answer, drag the appropriate code elements to the correct targets. Each element may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
QUESTION 60
You are developing a Universal Windows Platform (UWP) app that has the following unit test.
You need to ensure that TestMethod1 appears in the Test Explorer window of Microsoft Visual Studio.
What should you add?
A. [TestProperty(“AutoStart”,”True”)] before the TestMethod1 declaration
B. [TestCategory(“Enabled”)] before the UnitTest1 declaration
C. [TestProperty(“Enabled”,”True”)] before the TestMethod1 declaration
D. [TestClass] before the UnitTest1 declaration
Answer: D
QUESTION 61
Drag and Drop Question
How should you complete the code to read the currently-selected computer model? To answer, drag the appropriate code elements to the correct targets. Each element may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Answer:
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