70-357 | How Many Questions Of 70-357 Free Practice Test

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Microsoft 70-357 Free Dumps Questions Online, Read and Test Now.

NEW QUESTION 1
DRAG DROP
You are developing a Universal Windows Platform (UWP) app that needs to run on multiple types of devices.
The app must detect whether a device has a physical camera button.
For devices that have a physical camera button, you need to ensure that the app continues to function.
How should you complete the code? To answer, drag the appropriate code segments to the correct location or locations. 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.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Box 1: Windows.Phone.UI.Input
Box 2: ApiInformation
Box 3: IsTypePresent
Box 4: HardwareButtons
You could check and see if the backbutton is present to see if it is a mobile device
bool isHardwareButtonsAPIPresent = Windows.Foundation.Metadata.ApiInformation.IsTypePresent("Windows.Phone.UI.Input.H ardwareButtons")

NEW QUESTION 2

Note: This question it part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals.
You are developing a Universal Windows Platform (UWP) app. Your app stores files on a user's device.
You need to be able to replace the existing files with new files generated by the user.
Solution You run the StorageFile. OpenSequentialReadAsync method to replace the existing file.
Does this meet the goal?

  • A. yes
  • B. No

Answer: B

Explanation:
The OpenSequentialReadAsync() method opens a sequential-access stream over the current file for reading file contents.

NEW QUESTION 3
HOTSPOT
You must evaluate the code in CredentialManager.cs.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Box 1: No
Box 2: Yes
Box 3: No
From scenario: the following code was used PassWordVault vault = new PasswordVault(); var credential = vault.RetrieveAll();
You have several options for retrieving user credentials from the Credential Locker after you have a reference to the PasswordVault object.
You can, as in this question, retrieve all the credentials the user has supplied for your app in the locker with the PasswordVault.RetrieveAll method.

NEW QUESTION 4

You are developing a Universal Windows Platform (UWP) app.
You need to provide a solution that moves the scroll bars of the ScrollViewer when a user rotates the mouse wheel.
Which two actions should you perform? Each correct answer presents part of the solution.

  • A. Evaluate the CurrentPoint.Properties.MouseWheelDelta property of the PointerEvenArgs objec
  • B. Call the ChangeView() method of the ScrollViewer.
  • C. Update the XAML of the ScrollViewer to include the PointerWheelChanged event with a new event handle
  • D. Evaluate the Pointer.IsInRange property of the PointerRoutedEventArgs object within the event handle
  • E. Call the ChangeView() method of the ScrollViewer.
  • F. Add an event handler to the PointerRoutedAway event for the current window.
  • G. Evaluate the CurrentPoint.Properties.IsHorizontalMouseWheel property of the PointerEventArgs objec
  • H. Call the ChangeView() method of the ScrollViewer.
  • I. Add an event handler to the PointerWheelChanged event for the current window.

Answer: CD

Explanation:
The PointerRoutedAway event occurs on the process receiving input when the pointer input is routed to another process.

NEW QUESTION 5

You must create a control that meets the following requirements:
• allows you to extend the behavior of a combo box allows the arrow image is located at the right edge of a standard control to be replaced with a new image
• has a property that sets and returns the image
•has a visual interface of the control that is defined by using XAML
•defines the properties for the control in code You need to create the control.
Which object should you use?

  • A. ContentDialog
  • B. StaticResource
  • C. ThemeResource
  • D. UserControl

Answer: A

Explanation:
ContentDialog represents a dialog box that can be customized to contain checkboxes, hyperlinks, buttons and any other XAML content.

NEW QUESTION 6

You need to design the navigation tor the timeline. What navigation should you use?

  • A. hierarchy
  • B. peer
  • C. hub
  • D. master/details

Answer: A

Explanation:
From scenario:
Here we can use a hierarchy with each parent node having only one single child node. Hierarchical structures are good for organizing complex content that spans lots of pages or
when pages should be viewed in a particular order. The downside is that hierarchical pages introduce some navigation overhead: the deeper the structure, the more clicks it takes for users to get from page to page.
We recommend a hiearchical structure when:
You expect the user to traverse the pages in a specific order. Arrange the hierarchy to enforce that order.
There is a clear parent-child relationship between one of the pages and the other pages in the group.
There are more than 7 pages in the group.
When there are more than 7 pages in the group, it might be difficult for users to understand how the pages are unique or to understand their current location within the group. If you don't think that's an issue for your app, go ahead and make the pages peers

NEW QUESTION 7

You are designing a roadside assistance mobile app. The app displays a persistent list of links to pages. The app displays a persistent list of links to pages. The pages provide a quick way to move between different views of the a pp.
You need to recommend a user interface pattern that meets the following requirements:
• Allow users to navigate to frequently accessed, distinct content categories,
• Provide two or more content pones that have corresponding category headers.
• Display the navigation controls on the top of the screen.
• Highlight the currently selected navigation control. Which pattern should you recommend?

  • A. hub
  • B. tabs and pivots
  • C. active canvas
  • D. master/details

Answer: B

Explanation:
The Pivot control and related tabs pattern are used for navigating frequently accessed, distinct content categories. Pivots allow for navigation between two or more content panes and relies on text headers to articulate the different sections of content.
Tabs are a visual variant of Pivot that use a combination of icons and text or just icons to articulate section content. Tabs are built using the Pivot control.

NEW QUESTION 8
HOTSPOT
You are developing a Universal Windows Platform (UWP) app. The app does not display content properly on mobile devices. You need to support smaller window sizes.
How should you complete the relevant XAML markup? To answer, select the appropriate markup segment from each list in the answer area.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
One of the tools that Microsoft gives us for building adaptive UIs in UWP apps is state triggers. The version of Windows 10 released at BUILD 2015 features one state trigger: a class named AdaptiveTrigger. AdaptiveTrigger has two important properties: MinWindowWidth and MinWindowHeight. You use AdaptiveTrigger in conjunction with Visual State Manager to adapt the UI to screens and windows of various sizes.
* Inline
The pane is always visible and doesn't overlay the content area. The pane and content areas divide the available screen real estate.
* CompactInline
A narrow portion of the pane is always visible in this mode, which is just wide enough to show icons. The default closed pane width is 48px, which can be modified with CompactPaneLength. If the pane is opened, it will reduce the space available for content, pushing the content out of its way.

NEW QUESTION 9
HOTSPOT
You need to properly handle the size of the user interface objects.
How should you complete the method? To answer, select the appropriate code segment from each list in the answer area.
NOTE: Each correct selection is worth one point.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
From scenario:
UI controls must be smaller and spaced closer together if there is a mouse or stylus available.
UI controls must be larger and spaced farther apart if the device supports touch and there is no mouse or pointer available.
Box 1: MouseCapabilities pd = new Windows.Devices.Input.MouseCapabilities();
The Windows.Devices.Input namespace contains the MouseCapabilities class used to retrieve the properties exposed by one or more connected mice. Just create a new MouseCapabilities object and get the properties you're interested in.
Box 2: int pointer = pd.MousePresent; Example:
MouseCapabilities mouseCapabilities = new Windows.Devices.Input.MouseCapabilities(); MousePresent.Text = mouseCapabilities.MousePresent != 0 ? "Yes" : "No";
Box 3: if (pointer == 1)
This is true if a mouse is present.

NEW QUESTION 10
HOTSPOT
You are developing a Universal Windows Platform (UWP) app. You need to implement responsive user design patterns.
Which of the following techniques are supported? To answer, select the appropriate option from each list in the answer area.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Responsive design techniques
When you optimize your app's UI for specific screen widths, we say that you're creating a responsive design. Here are six responsive design techniques you can use to customize your app's UI.
* Reposition
You can alter the location and position of app UI elements to get the most out of each device
* Resize
You can optimize the frame size by adjusting the margins and size of UI elements.
* Reflow
By changing the flow of UI elements based on device and orientation, your app can offer an optimal display of content-
* Show/hide
You can show or hide UI elements based on screen real estate, or when the device supports additional functionality, specific situations, or preferred screen orientations.
* Replace
This technique lets you switch the user interface for a specific device size-class or orientation. In this example, the nav pane and its compact, transient UI works well for a smaller device, but on a larger device tabs might be a better choice.
* Re-architect
You can collapse or fork the architecture of your app to better target specific devices.

NEW QUESTION 11
HOTSPOT
You have an app that includes the following method:
70-357 dumps exhibit
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Box 1: No
When neither DesiredAccuracyInMeters nor DesiredAccuracy are set, your app will use an accuracy setting of 500 meters (which corresponds to the DesiredAccuracy setting of Default). Setting DesiredAccuracy to Default or High indirectly sets DesiredAccuracyInMeters to 500 or 10 meters, respectively.
Box 2: No
The Default value should be used to optimize for power, performance, and other cost
considerations.
The High value should be used to deliver the most accurate report possible. This includes using services that might charge money, or consuming higher levels of battery power or connection bandwidth. An accuracy level of High may degrade system performance and should be used only when necessary.

NEW QUESTION 12
DRAG DROP
You are creating a Universal Windows Platform (UWP) app that takes pictures. You want to use the camera’s built-in interface for taking the pictures.
You need to capture an image from the device’s built-in camera.
How should you complete the method? To answer, drag the appropriate code segments to the correct location or locations. Each code segments 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.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Box 1: CameraCaptureUI
Box 2: CameraCaptureUI
Example: Using Windows.Media.Capture.CameraCaptureUI API to capture a photo CameraCaptureUI dialog = new CameraCaptureUI();
Size aspectRatio = new Size(16, 9); dialog.PhotoSettings.CroppedAspectRatio = aspectRatio;
StorageFile file = await dialog.CaptureFileAsync(CameraCaptureUIMode.Photo);

NEW QUESTION 13

You need to configure networking.
Which two networking technologies should you use? Each correct answer presents a complete solution.

  • A. Background Transfer API
  • B. StreamWebSocket class
  • C. HttpClient class
  • D. Custom WebSocket class
  • E. MessageWebSocket class

Answer: AC

NEW QUESTION 14

Note: This question it part of a series of questions that present the same scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals.
You are developing a Universal Windows Platform (UWP) app. Your app stores files on a user's device.
You need to be able to replace the existing files with new files generated by the user.
Solution you run the StoragaFile.GetParentAsync method to get a reference to the existing file. Then, you run the StorageFile.CreateStreamedFileAsyne method to create the- new file at that same location.
Does this meet the goal?

  • A. yes
  • B. No

Answer: A

Explanation:
The GetParentAsync() method gets the parent folder of the current file. The CreateStreamedFileAsync method can be used to create a StorageFile that can be passed to other methods or passed to another app through app contracts.

NEW QUESTION 15

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains n unique solution. Determine whether the solution meets the stated goals.
You need to implement the appropriate XAML layout (or the Timeline app. Solution: You create an instance of a RelativePanel class.
Does this meet the goal?

  • A. Yes
  • B. No

Answer: A

Explanation:
RelativePanel lets you layout UI elements by specifying where they go in relation to other elements and in relation to the panel. By default, an element is positioned in the upper left corner of the panel.

NEW QUESTION 16

You are developing a Universal Windows Platform (UWP) app. The app must allow the user to select only one file at a time.
You need to ensure that the app displays the appropriate dialog window. Which method should you use?

  • A. FileOpenPicker.PickSingleFileAsync()
  • B. FileOpenPicker.PickMultipleFilesAsync()
  • C. StorageItem.OpenSequentialReadAsync()
  • D. StorageItem.GetFileFromPathAsync()
  • E. StorageItem.OpenReadAsync()

Answer: A

Explanation:
To pick a single file.
Windows.Storage.StorageFile file = await picker.PickSingleFileAsync(); if (file != null)
{
// Application now has read/write access to the picked file this.textBlock.Text = "Picked photo: " + file.Name;
}
else
{
this.textBlock.Text = "Operation cancelled.";
}

NEW QUESTION 17

Note: This question It part of a series of that present the tame scenario. Each question in the series contains a unique solution. Determine whether the solution meets the stated goals.
You must create a project for shared code.
Solution: You implement the shared code in a .NET class library. Does this meet goal?

  • A. Yes
  • B. No

Answer: B

Explanation:
The .NET Framework Portable Class Library, not a .NET class library, project type in Visual Studio helps you build cross-platform apps and libraries for Microsoft platforms quickly and easily.
Portable class libraries can help you reduce the time and costs of developing and testing code. Use this project type to write and build portable .NET Framework assemblies, and then reference those assemblies from apps that target multiple platforms such as Windows and Windows Phone.
Even after you create a Portable Class Library project in Visual Studio and start developing it, you can change the target platforms. Visual Studio will compile your library with the new assemblies, which helps you identify the changes you need to make in your code.
From scenario:
The app must be compatible with current and future XBOX apps that use C++.

NEW QUESTION 18
DRAG DROP
You are developing a Universal Windows Platform (UWP) app. A user terminates the app.
You need to ensure that the app initializes when the user starts the app.
How should you complete the method? To answers, drag the appropriate code segment to the correct location or locations. 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.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
The OnLaunched method is called when an app is launched. It is passed a LaunchActivatedEventArgs parameter which provides, among other things, the arguments
passed to the app, the identifier of the tile that launched the app, and the previous state that the app was in.
Box 1: OnLaunched
Box 2: LaunchActivatedEventArgs e

NEW QUESTION 19

You have a Universal Windows Platform (UWP) app. The app has a page that includes the following XAML markup. Line numbers are included for reference only.
70-357 dumps exhibit
Users report that the page takes a long time to refresh.
You need to improve the load time for the page while maintaining the same layout and functionality.
What should you do?

  • A. Move the attributes from the BORDER element at line 02 to the GRID element at line03. Then, remove the BORDER elements at line 02 and line 11.
  • B. Replace the TEXTBLOCK element at line 09 with a TEXTBOX element.
  • C. Swap the markup at line 02 with the markup at line 03. Swap the markup at line 10 with the markup at line 11.
  • D. Move the Fill and Opacity attributes and value from the RECTANGLE element at line 08 to the GRID element at line 03. Then, Remove the RECTANGLE element.

Answer: D

Explanation:
Use single-cell grids for overlapping UI
A common UI requirement is to have a layout where elements overlap each other. Typically padding, margins, alignments, and transforms are used to position the elements this way. The XAML Grid control is optimized to improve layout performance for elements that overlap.

NEW QUESTION 20

You are a developer for LitWare,Inc.’Universal Windows Platform (UWP) app. Access to the hardware within the app is not functioning correctly.
You need to add the capabilities to the package.appmanifest file. Which markup segment should you insert at line PM16?
70-357 dumps exhibit

  • A. Option A
  • B. Option B
  • C. Option C
  • D. Option D

Answer: D

Explanation:
From scenario:
✑ The app must use the microphone and webcam to support audio and video
recording. In addition, the app must support the use of the back and camera buttons, if present.
✑ Users must be able to record videos and view them in their videos library.

NEW QUESTION 21

Note: This question is part of a series of questions that present the same scenario. Each
question in the series contains a unique solution. Determine whether the solution meets the stated goals.
You must create a project for shared code.
Solution: You implement the shared code in a Windows Runtime component. Does this meet the goal?

  • A. Yes
  • B. No

Answer: A

NEW QUESTION 22

You need to configure the app to meet the load time requirements. What should you do?

  • A. Set the value of the CacheSize to 0.
  • B. Set the value of the CacheMode property to BitmapCache.
  • C. Set the value of the NavigationCacheMode property to Enabled.
  • D. Set the value of the NavigationCacheMode property to Disabled.

Answer: C

Explanation:
Scenario: You must optimize the app using the following guidelines:
✑ You must minimize the time it takes to display content when an item on the timeline is selected.
✑ The app must respect memory and resource constraints for all devices.
You use the NavigationCacheMode property to specify whether a new instance of the page is created for each visit to the page or if a previously constructed instance of the page that has been saved in the cache is used for each visit.
The default value for the NavigationCacheMode property is Disabled. Set the
NavigationCacheMode property to Enabled or Required when a new instance of the page is not essential for each visit. By using a cached instance of the page, you can improve the performance of your application and reduce the load on your server.

NEW QUESTION 23
DRAG DROP
You are developing a Universal Windows Platform (UWP) app.
Users can drag and drop images on the screen to share them with their friends.
You need to implement drag and drop for the app. Users must be able to drop images onto a blue rectangle that the app displays.
How should you complete the relevant markup? To answer, drag the appropriate markup segments to the correct targets. Each markup 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.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Box 1: AllowDrop
Box 2: DragOver
Box 3: Grid_DragOver
Box 4: Drop
Use the AllowDrop and CanDrag properties to designate the areas of your app valid for dragging and dropping.
The following markup shows how to set a specific area of the app as valid for dropping by using the AllowDrop in XAML. If a user tries to drop somewhere else, the system won't let them. If you want users to be able to drop items anywhere on your app, set the entire background as a drop target.
<Grid AllowDrop="True" DragOver="Grid_DragOver" Drop="Grid_Drop" Background="LightBlue" Margin="10,10,10,353">
<TextBlock>Drop anywhere in the blue area</TextBlock>
</Grid>

NEW QUESTION 24
DRAG DROP
You need to add code at line IM14 to meet the user interface requirement.
How should you complete the relevant code segment? To answer, drag the appropriate code segments to the correct location or locations. Each code segments 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.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
Box 1: RunAsync
Box 2: CoreDispatcherPriority
Box 3: Normal
If you are on a worker thread and want to schedule work on the UI thread, use CoreDispatcher::RunAsync. Always set the priority to CoreDispatcherPriority::Normal or CoreDispatcherPriority::Low.
Callbacks scheduled with CoreDispatcherPriority::Low priority are called when there are no pending input events. Use the CoreDispatcherPriority::Low priority to make your app UI more responsive.

NEW QUESTION 25
DRAG DROP
You are building a Universal Windows Platform (UWP) app that displays a list of books.
The books will be displayed in a ListView control. You are binding to a collection of type BookDataGroup.
You need to create a DataTempate for your ListView that displays the book’s title and author. The title must be displayed before the author.
Which four markup segments should you use to develop the solution? To answer, move
the appropriate markup segments from the list of markup segments to the answer area and arrange them in the correct order.
70-357 dumps exhibit

  • A. Mastered
  • B. Not Mastered

Answer: A

Explanation:
70-357 dumps exhibit

NEW QUESTION 26
......

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