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Microsoft 70-357 Exam

Status: RETIRED
Certification Provider: Microsoft
Exam Name: Developing Mobile Apps
Number of questions in our database: 51
Exam Version: 01-01-1970
70-357 Exam Official Topics:
  • Topic 1: Implement feature detection for adaptive coding/ Create and use custom controls within an adaptive UI
  • Topic 2: Integrate a Share contract to share content with another app/ Develop a XAML page layout for an adaptive UI
  • Topic 3: Access cloud data and Web APIs by using HttpClient/ configure a grid with appropriate column and row properties
  • Topic 4: Manage user input and custom user interactions/ Implement page navigation and lifecycle events
  • Topic 5: Implement activation based on Search integration/ Select the appropriate XAML layout panel based on the UI requirement
  • Topic 6: Evaluate when to implement a custom navigation pattern/ Implement MVVM classes and class interactions
  • Topic 7: Implement event binding by applying command patterns/ Implement responsive and adaptive UI behaviors
  • Topic 8: Access data by using Entity Framework (EF)/ Differentiate between responsive and adaptive UI behaviors
  • Topic 9: Implement data access and data binding/ Choose the appropriate navigation structure for an app
  • Topic 10: Manage app suspension and resuming/ Evaluate when to create a custom control; create a custom controls
  • Topic 11:
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Free Microsoft 70-357 Exam Actual Questions

The questions for 70-357 were last updated On 01-01-1970

Question #1

You need to configure authentication for the app.

Which two technologies should you use? Each correct answer presents part of the solution.

Reveal Solution Hide Solution
Correct Answer: A, D

Microsoft Hello

Microsoft Hello provides simple multi-factor authentication using facial recognition (or iris, or fingerprints) that is used to access the Microsoft Passport private key stored in the secure TPM chip. For the first time, Microsoft has included the biometric software (middleware) in Windows 10 to support biometrics for authentication. In previous versions of Windows, the OEM (HP, Dell, Lenovo, etc) needed to add its own biometric middleware to support biometric authentication.

From scenario: The app must meet the following requirements related to security:

Note: Microsoft Passport

Microsoft has resurrected the Passport moniker for a new PKI credential system that requires multi-factor authentication. Most interesting about Microsoft Passport is that it fully supports the Fast IDentity Online (FIDO) Alliance standards which means it will work with many web/cloud services without modification. The plan is that users of cloud services supporting FIDO is that there will no longer be passwords associated with the user's account.

Microsoft Passport involves a user logging onto the Windows 10 computer with multi-factor (PIN, face, iris, fingerprint, etc) and either creating a new account or associating an existing account with an IDentity Provider (IDP). Windows generates a public/private key pair with the private key stored securely outside of the Windows 10 OS. The public key is associated with the account so that a challenge can be sent that can only correctly respond to the IDP. Another key point to the Microsoft Passport credential system is that the user needs to enroll every device used to access the service (IDP).


Question #2

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?

Reveal Solution Hide Solution
Correct Answer: A

Question #3

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 for the Timeline app.

Solution: You create an instance of a SplitView control.

Does this meet the goal?

Reveal Solution Hide Solution
Correct Answer: B

A split view control has an expandable/collapsible pane and a content area.

Here is an example of the Microsoft Edge app using SplitView to show its Hub.


Question #4

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 for the Timeline app.

Solution: You create an instance of a StackPanel class.

Does this meet the goal?

Reveal Solution Hide Solution
Correct Answer: B

StackPanel is a simple layout panel that arranges its child elements into a single line that can be oriented horizontally or vertically. StackPanel controls are typically used in scenarios where you want to arrange a small subsection of the UI on your page.

The following XAML shows how to create a vertical StackPanel of items.

XAML

The result looks like this.


Question #5

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.

Reveal Solution Hide Solution
Correct Answer: C, D

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



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