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

1. You are creating a Windows Store app for a retail business. You must enumerate the available human interface devices (HIDs) on the client computer.
You need to use the Windows.Devices.HumanInterfaceDevice namespace to detect the available devices.
What types of devices can you detect?

A) A Bluetooth-enabled joystick that uses a native Windows 8.1 device driver
B) An internal camera device
C) A wireless router
D) The built-in GPS on a mobile device

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

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

3. You are developing two Windows Store apps by using JavaScript. A Source app will store sensitive customer information. A Target app will retrieve the stored information for validation and further processing.
The Source app must secure data by using a private-public key pair. Only the Target app must be able to consume data that has been secured by the Source app.
You need to ensure that the security of the data is not compromised.
What should you do?

A) Encode data to and decode data from a Base64 string.
B) Encrypt and decrypt data by using an asymmetric algorithm.
C) Encrypt and decrypt data by using a symmetric algorithm.
D) Encrypt data by using an asymmetric algorithm. Decrypt data by using a symmetric algorithm.

4. DRAG DROP
You are developing a Windows Store app. The app displays text-based toast notifications. The toast notification must resemble the sample shown in the following image.

The app must play an audio file until the user dismisses the toast notification.
You need to implement the toast notification.
Develop the solution by selecting and arranging the required code segments in the correct
order.
You may not need all of the code segments.

5. You are developing an app that plays one audio file named myAudio.mp3 and two video files named myVideol.mp4 and myVideo2.mp4.
You have the following requirements: - The audio file must NOT have access to the Play To feature. - The video files must be able to use the Play To feature.
You need to configure the app to meet the requirements.
Which code or markup segment should you use?

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

Solutions: