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Microsoft Recertification for MCSD: Windows Store Apps using C# Sample Questions:

1. You are designing a Windows Store app to manage image and video files.
The app must meet the following requirements:
Video files must be stored locally on each device.
The app must use local storage for data caching.
User settings must be shared across multiple devices.
Image files must be available across multiple devices.
Metadata for images must be stored in a central database.
Image files, video files, and their associated metadata must load as quickly as
possible.
You need to identify which data must be cached based on the app requirements.
Which two types of data should you identify? (Each correct answer presents part of the solution. Choose two.)
------

A) Metadata
B) User settings
C) Video files
D) Image files

2. DRAG DROP
You need to write code for the method that will be called when a user takes a picture. (Develop the solution by arranging the code snippets. You will need all of the code snippets.)

3. You are developing a Windows Store app.
The app will store user names and passwords by using Windows Azure.
You need to recommend a method to store the passwords. The solution must minimize the likelihood that the passwords will be compromised.
Which algorithm should you recommend using?

A) SHA512
B) AES
C) 3DES
D) DES

4. HOTSPOT
You are developing a Windows Store app.
The app receives badge notifications from Windows Push Notification Services (WNS).
You configure the app to establish a communication channel with WNS. You use a variable named pushChannel to store the notification channel object used for communication. You add the following line of code to the app:

Which code snippets should you insert in Target 1, Target 2 and Target 3 to complete the code? (To answer, select the correct code snippet from each drop-down list in the answer area.)

5. HOTSPOT
You are developing a Windows Store app.
You define an app bar named BottomAppBar.
You need to ensure that you can open the app bar programmatically.
You have the following code:

Which code snippets should you insert in Target 1 and Target 2 to complete the code? (To answer, select the correct code snippet from each drop-down list in the answer area.)

Solutions: