Microsoft Recertification for MCSD: Windows Store Apps using HTML5 : 070-490

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Microsoft Recertification for MCSD: Windows Store Apps using HTML5 Sample Questions:

1. You need to retrieve the background task collection for the iteration loop.
Which code segment should you insert at line BG14?

A) var tasks = Windows.ApplicationModel.Background.BackgroundTaskRegistration.allTasks.first();
B) var tasks = Windows.ApplicationModel.Background.BackgroundTaskRegistration.allTasks();
C) var tasks = Windows.ApplicationModel.Background.BackgroundTaskBuilder.allTasks.first();
D) var tasks = Windows.ApplicationModel.Background.BackgroundTaskRegistration.first();

2. You are developing a Windows Store app.
The app must store data locally. When the app terminates, it must destroy the stored data.
You need to choose the appropriate data storage location.
Which storage location should you use?

A) indexedDB
B) localStorage
C) sessionStorage
D) roamingStorage

3. In the following code segment, three functions return WinJS.Promise objects.

You need to chain the promise operations to optimize error handling. Which code segment should you use?

A) Option D
B) Option B
C) Option C
D) Option A

4. You need to implement the getStoredCredentialsFull method. Which code segment should you insert at line CM13?

A) Option D
B) Option B
C) Option C
D) Option A

5. You are developing a Windows Store app by using JavaScript.
The app contains the following code. (Line numbers are included for reference only).
You need to ensure that the app will handle any possible event for a media connection in a Play To streaming operation.
How should you complete the relevant code? (Each correct answer presents part of the solution. Choose all that apply.)

A) Option D
B) Option B
C) Option F
D) Option C
E) Option E
F) Option A

Solutions: