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

1. HOTSPOT
The following image depicts three apps. App1 and App3 have been launched by App2.

Select the correct answer from each list based on the information presented in the image. Each correct selection is worth one point.

2. You are developing a Windows Store app. The app includes a handler for the suggestions requested event. The empty event handler is shown in the following code. (Line numbers are included for reference only.)

The app must meet the following requirements:
- Provide an app-defined list of choices in the Search pane that responds to user query text changes. - Provide suggested search topics only when the user enters a query that contains the text "products".
You need to add code to meet the requirements.
Which code segment should you insert at line 02?

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

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

4. You are developing a fitness app for distribution through the Windows Store.
The app must interact with the following USB device classes:
Webcam
Infrared thermometer
Scale
Printer
----
You need to modify the app manifest file as required to support the devices.
Which two device classes should you include? Each correct answer presents part of the solution.

A) Printer
B) IrDa
C) AudioVideo
D) PersonalHealthcare

5. HOTSPOT
You have a Windows Store app. You are reviewing code that caches data.
The code includes the following segment. Line numbers are included for reference only.
01 function setLocaiStorage(value) {
02 var storage = window.localStorage;
03 var value = document.getElement3yId('textToAdd').text;
04 storage.name = 'John';
05 storage.phone = ' 555-555-0100';
06 storage.message = value;
07 }
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.

Solutions: