[Free] 2018(May) EnsurePass Braindumps Microsoft 70-484 Dumps with VCE and PDF 1-10

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2018 May Microsoft Official New Released 70-484
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Essentials of Developing Windows Store Apps using C#

Question No: 1 – (Topic 1)

You need to ensure that the app resumes according to the requirements.

Which actions should you perform? (Each correct answer presents part of the solution. Choose all that apply.)

  1. Retrieve new user content by using the Window.Current.Dispatcher.ProcessEvents() method in the App_Resuming event handler.

  2. update the user interface by using the Window.Current.Dispatcher.Invoke() method in the App_Resuming event handler.

  3. Override the OnLaunched event handler.

  4. Retrieve new user content by using the Window.Current.Dispatcher.ProcessEvents() method in the OnLaunched event handler when the ActivationKind is Launch.

  5. Update the user interface by using the Window.Current.Dispatcher.Invoke() method in the OnLaunched event handler when the ActivationKind is Launch.

  6. Register the App_Resuming event handler for the Resuming event.

Answer: A,B Explanation: From scenario:

The app must meet the following technical requirements:

/ When the app resumes after a period of suspension, refresh the user interface, tile images, and data with current information from the web service.

Question No: 2 – (Topic 1)

You need to identify the class to use as the data context for the image list box. Which class should you use?

  1. System. Collections.Object Model. CollectionObserverlt;Tgt;

  2. System.Collections.ObjectModel.ObservableCollectionlt;Tgt;

  3. System.Collections.Generic.IEnumeratorlt;Tgt;

  4. System.Collections.Generic.IEnumerablelt;Tgt;

Answer: B

Explanation: ObservableCollectionlt;Tgt; Class

Represents a dynamic data collection that provides notifications when items get added, removed, or when the whole list is refreshed.

Question No: 3 – (Topic 1)

You need to configure toast notifications for the photo competition. Which code segment should you use?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: B

Explanation: The app must display toast notifications to signal the end of a photo competition. The toast notifications must meet the following requirements:

/ Display toast notifications for as long as possible

Question No: 4 – (Topic 1)

You need to access the remote image data according to the requirements. Which data storage methods should you use?

  1. SaveDataToSqlAzureStorage() and GetDataFromSqlAzureStorage()

  2. SaveDataToRemoteStorage() and GetDataFromRemoteStorage()

  3. SaveDataToAzureStorage() and GetDataFromAzureStorage()

  4. SaveDataToWebService() and GetDataFromWebService()

Answer: D

Question No: 5 – (Topic 1)

You need to choose the appropriate data binding strategy for the image list box. Which method should you use?

  1. System.Drawing.ImageConverter.ConvertToString()

  2. IValueConverter.ConvertBack()

  3. IValueConverter.Convert()

  4. System.Drawing. ImageConverter-ConvertFromStrin()

Answer: C

Explanation: IValueConverter.Convert

The data binding engine calls this method when it propagates a value from the binding source to the binding target.

Question No: 6 – (Topic 1)

You need to correctly display notifications on the app tile.

Which code segments should you insert at line AX24? (Each correct answer presents part of the solution. Choose all that apply.)

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: A,C

Explanation: From scenario:

Display toast notifications based on the schedule that is received from the web service. Display only the most recent notification on the app tile.

Question No: 7 – (Topic 1)

You need to ensure that resuming the app displays the required information.

From which ApplicationExecutionState enumeration should you configure the user interface state?

  1. Terminated

  2. NotRunninq

  3. Suspended

  4. Running

  5. ClosedByUser

Answer: C

Explanation: *From scenario: The app must meet the following technical requirements:

->Preserve user state and photo edits when switching between this app and other apps.

->When the app resumes after a period of suspension, refresh the user interface, tile images, and data with current information from the web service.

Switching between apps suspends the app.

Question No: 8 – (Topic 1)

A photo competition is ending.

You need to meet the requirements when a user clicks the toast notification. Which code segment should you use?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: D Explanation:

From scenario:

When a user clicks a toast notification that indicates the end of the photo competition, the app must display the details of the photo competition that triggered the toast notification.

Question No: 9 – (Topic 1)

You need to ensure that only the correct information is preserved when the user switches to another app.

Which actions should you perform? (Each correct answer presents part of the solution. Choose all that apply.)

  1. Save application state by calling the SaveDataToRoamingStorage() method,

  2. Save photographs by calling the SaveDataToLocalStorage() method.

  3. Save photographs by calling the SaveDataToWebService() method.

  4. save application state by calling the SaveDataToLocalStorage() method.

Answer: A,B

Explanation: A: From scenario: The app must meet the following technical requirements: Retain state for each user and each device.

B: From scenario: The app must store cached images on the device only

Question No: 10 – (Topic 1)

You need to choose the appropriate data binding strategy for the image list box. Which method should you use?

  1. System.Drawing.ImageConverter.ConvertTo(value, typeof(Image))

  2. IValueConverter.Convert()

  3. System.Drawing.ImageConverter.ConvertFrom(value, typeof(Image), CultureInfo.CurrentUICulture)

  4. IValueConverter.ConvertBack ()

Answer: B

Explanation: IValueConverter.Convert

The data binding engine calls this method when it propagates a value from the binding source to the binding target.

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