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

1. 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.

2. You need to ensure that inspectors can manage tasks that are assigned to them. Which code segment should you insert at line BT22?

A) BackgroundTask.unregisterBackgroundTasks(BackgroundTask.TaskName);
B) BackgroundTask.unregisterBackgroundTasks(sender.BackgroundTaskName);
C) BackgroundTask.unregisterBackgroundTasks(e.BackgroundTaskName);
D) BackgroundTask.unregisterBackgroundTasks(BackgroundTask.BackgroundTaskName);

3. 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) roamingStorage
B) indexedDB
C) localStorage
D) sessionStorage

4. 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 A
B) Option B
C) Option D
D) Option C

5. You are developing a Windows Store enterprise app.
The app must retrieve data from other apps asynchronously across domains by using the XMLHttpRequest object.
You need to retrieve the data.
What should you use?

A) WinJS.xhr
B) GetResponseStream()
C) HTTPClient
D) HttpWebRequest

Solutions: