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Code d'Examen: 070-487
Nom d'Examen: Microsoft (Developing Windows Azure and Web Services)
Questions et réponses: 63 Q&As
Code d'Examen: 070-323
Nom d'Examen: Microsoft (Administering Office 365)
Questions et réponses: 90 Q&As
Code d'Examen: 070-485
Nom d'Examen: Microsoft (Advanced Windows Store App Development using C#)
Questions et réponses: 156 Q&As
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NO.1 Users report performance issues when getting the location information associated with a
photo. You suspect the app is encountering performance issues in the GetLocationAsync() method
of the Environment class.
You need to enhance the performance of the GetLocationAsync() method of the app.
What should you do?
A. Remove the Compass initialization from the LoadSensors() method and initialize it within the
GetLocationAsync() method.
B. set the Reportlnterval property of the Compass object to 16.
C. set the Reportlnterval property of the Compass object to 0.
D. Move the locator variable to a class level variable and initialize it in the Environment constructor.
Answer: D
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NO.2 You need to ascertain whether the device that the app is running on has a compass.
Which line of code should you insert at line CE43?
A. while(Windows.Devices.Sensors == Compass)
B. if (Compass.GetDefault() != null)
C. if (Compass.GetDefault() == Compass.FirstOrDefault)
D. if(Compass.GetCurrentReading() != null)
Answer: B
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NO.3 DRAG DROP
You need to allow users to capture video instead of photos.
How should you complete the code segment that will replace lines MP03 through MP11? (To answer,
drag the appropriate lines of code to the correct location or locations in the answer area. Each code
segment 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:
NO.4 You need to implement the behavior requirements for the photo viewer.
Which controls should you create?
A. Create two SemanticZoom controls and one ListView control.
B. Create one SemanticZoom control and one ListView control.
C. Create one ScrollViewer control, one SemanticZoom control, and one GridView control.
D. Create two GridView controls and one SemanticZoom control.
Answer: D
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NO.5 You need to modify the GetWeatherData() method in the WinMD component at line CE38.
Which interface should you use for the return type of the method?
A. IVectorView
B. IVector
C. IList
D. IMap
Answer: A
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9. You place a breakpoint at line MP31 in the app.
When you debug the app, the debugger continuously catches a System.UnauthorizedAccess
exception.
You need to resolve the exception.
What should you do?
A. Wrap lines CE43 through CE46 in a try-catch statement.
B. At line MP10, change the code segment to the following line of code. read if(cameraUI != null)
C. Move line CE09 to CE16.
D. At line PA25, insert the following line of code. <Capability Name="picturesLibrary"/>
Answer: D
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10. You need to modify the code at line CE38 to meet the requirements.
Which interface should you use for the return type of the method?\
A. IMap
B. IVector
C. IVectorView
D. IList
Answer: B
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NO.6 You need to implement the requirements for streaming media.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Enable access to the Videos Library.
B. Ensure that the app stays in the foreground while media is being streamed.
C. Enable access to the Pictures Library.
D. Register for the SourceRequested event.
E. Enable access to the Music Library.
F. Register for the PlayRequested event.
Answer: A,D
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Explanation:
From scenario:
Team members must be able to stream video clips to other devices in the vicinity of the
team member's device. The app will not support the streaming of photographs.
D: You can use Play To to stream the audio or video in your application, as well as images, by
implementing the Play To contract. To implement the Play To contract in your application, register
for the sourceRequested event. Note: To register for the sourceRequested event, get a reference to
the current PlayToManager by calling the getForCurrentView method. You can then call
addEventHandler on the PlayToManager to associate your event handler with the sourceRequested
event. In your event handler, pass the media element from your application to the setSource
method of the PlayToSourceRequestedEventArgs object passed to the event handler as shown in the
following example. // Play To Contract
private Windows.Media.PlayTo.PlayToManager ptm =
Windows.Media.PlayTo.PlayToManager.GetForCurrentView();
protected override void OnNavigatedTo(NavigationEventArgs e)
{
ptm.SourceRequested += sourceRequestHandler;
}
private void sourceRequestHandler(
Etc.
NO.7 You need to set the PlayTo source in the LoadFile() method. Which line of code should you
insert at line PT30?
A. element.SetSource(videoFile, contentType);
B. playToManager.SetSource(stream, contentType);
C. dispatcher.SetSource(stream, contentType);
D. element.SetSource(stream, contentType);
Answer: D
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NO.8 You need to modify the existing GetCurrentEnvironmentAsync() method in the Environment
WinMD component to accept parameters.
Which type should you use at line CE07?
A. dynamic
B. List<string>
C. Task<EnvironmentalStatus>
D. IList<string>
Answer: D
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