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QUESTION 121
You are developing a Windows Store app.
The app will access several web resources that use an OAuth 2.0 authentication provider.
You need to recommend in which class to store user credentials so that users do not have to reenter their credentials when they access the web resources.
Which class should you recommend?
A. Windows.Security.Credentials.PasswordVault
B. Windows.Security.Credentials.UI.CredentialPicker
C. windows.Security.Authentication.Onlineld.OnlineldAuthenticator
D. windows.Security.Credentials.WebAccount
Answer: A
Explanation:
The task of storing and retrieving user credentials securely and allowing user credentials roam at no cost with the user’s Microsoft account is simplified with the Credential Locker.
Storing user credentials in the Credential Locker is a quick, two-step process.
1.Obtain a reference to the Credential Locker using the PasswordVault object from the Windows.Security.Credentials namespace.
2.Create a PasswordCredential object that contains an identifier for your app, the username and the password, and pass that to the PasswordVault.Add method to add the credential to the locker.
QUESTION 122
You are developing a Windows Store app that will display a toast notification.
You need to ensure that when a toast notification is displayed, the first line of the notification is bold.
Which template should you use?
A. TileSquareText03
B. ToastText01
C. TileSquarePeeklmageAndText01
D. ToastImageAndText02
Answer: D
Explanation:
ToastImageAndText02
A large image, one string of bold text on the first line, one string of regular text wrapped across the second and third lines.
QUESTION 123
You are developing a Windows Store app that will back up video files.
The app will support videos up to 1 GB in size.
If users lose their device, they must be able to restore the video files to a new device.
You need to recommend a storage solution for the app.
Which storage solution should you recommend?
A. Windows Azure blob storage
B. SQLite for Windows Runtime
C. windows Azure Table Storage
D. video library
Answer: A
Explanation:
Azure Blob storage is a service for storing large amounts of unstructured data that can be accessed from anywhere in the world via HTTP or HTTPS. A single blob can be hundreds of gigabytes in size, and a single storage account can contain up to 200 TB of blob, queue, and table data.
Common uses of Blob storage include:
– Serving images or documents directly to a browser
– Storing files for distributed access
– Streaming video and audio
– Performing secure backup and disaster recovery
– Storing data for analysis by an on-premises or Azure-hosted service
QUESTION 124
You are creating a Windows Store app.
You need to create a gradient brush that is white in the top left corner to black in the bottom right corner.
You have the following xaml markup. (Line numbers are included for reference only.)
Which XAML markup segments should you insert at lines 02 and 04? (To answer, drag the appropriate XAML markup segment to the correct locations in the answer area. Each XAML markup segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)
Answer:
QUESTION 125
You are developing a Windows Store game.
The game allows for interactive online play between users.
The game authenticates users by using the credentials of a third-party site that provides OAuth2 authentication.
You need to implement authentication that uses an implicit grant authorization.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)
Answer:
QUESTION 126
You are developing a Windows Store app.
App.xaml contains the following XAML markup:
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.
Answer:
QUESTION 127
You are developing a page for an app.
The page uses the following XAML markup:
The grid takes the full width of the page and has no margins.
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.
Answer:
QUESTION 128
You are developing a Windows Store app.
A page named Profile collects information about the user, including his or her name, in a control named Name. A page named Journal allows the user to make a journal entry.
You need to pass the user’s name to the Journal page when the user navigates from the Profile page to the Journal page.
You have the following code:
protectedNavigateToJournal()
{
Target 1
}
Which code snippet should you insert in Target 1 to complete the code? (To answer, select the correct code snippets from the dropdown list.)
Answer:
QUESTION 129
You have been asked to implement an application in which the user can select one or more contacts.
What code should you use to provide this option to the user?
A. while (true) { ContactPicker.PickSingleContactAsync(); }
B. IReadOnlyList<Contact> contacts =
await ContactPicker.PickMultipleContactsAsync();
C. IReadOnlyList<ContactInformation> contacts =
await contactPicker.PickMultipleContactsAsync();
D. IReadOnlyList<ContactInformation> contacts =
contactPicker.PickMultipleContactsAsync();
Answer: C
QUESTION 130
You are developing a Windows Store checkers game.
Game pieces are moved by using manipulation events.
Moving a game piece on top of another game piece captures the bottom piece.
The captured piece must be identified and removed from the board.
You need to identify when a game piece is captured.
Which three actions should you perform in sequence? (To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.)
Answer:
QUESTION 131
You are developing a Windows Store game.
The game must capture video and audio, and must support Near Field Communications (NFC). You need to enable the capabilities to support these requirements.
Which three capabilities should you enable? (To answer, select the appropriate capabilities in the answer area.)
Answer:
Explanation:
Note:
– Proximity
Windows Phone 8 supports Proximity communication using Near Field Communication (NFC).
QUESTION 132
You are developing a Windows Store app.
You have the following requirements:
– The app tile must update every 30 minutes.
– Content must be pushed to the app tile from multiple URLs.
You need to schedule the app tile updates.
How should you complete the relevant code? (To answer, drag the appropriate code segments to the correct locations in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)
Answer:
Explanation:
Box 1: EnableNotificationQueue(true);
First, you must enable the notification queue if you have not enabled it previously.
Note that the call to EnableNotificationQueue should be made only one time after the user installs the app or creates a secondary tile.
Box 2: StartPeriodicUpdateBatch(PollUris, recurrence);
This example code uses a previously defined variable called PollUris, which is an array of URL objects, each of which represents a different URL from which to get polled content.
Note:
– The TileUpdateManager.CreateTileUpdaterForApplication method creates and initializes a new instance of the TileUpdater, which lets you update the calling app’s tile.
– Windows can poll up to five different URLs to supply a set of content that cycles through the tile’s notification queue.
Reference: How to set up periodic notifications for tiles (Windows Store apps using C#/VB/C++ and XAML) (Windows)
QUESTION 133
You have prepared an app package and submitted it to the Windows Store.
You have been informed that your app has passed certification and will be available in the Windows Store soon.
You realize there are a few bugs that you should fix soon.
What should be your approach in such a case?
A. Create a new app from the code used to build the original app.
Submit the new app and withdraw the original app.
B. Bug fixes are not accepted in the Windows Store.
You have to withdraw the app and you cannot submit updates to your app.
C. You prepare an update for your app, test it with Windows ACK, and submit it to the Windows
Store for certification.
After it is certified, it will be available to your users.
D. You can email a copy of your app with the bug fixes to your users.
Answer: B
QUESTION 134
You have completed the development of a Windows Store app that will be deployed in a few businesses.
You choose to distribute the app yourself instead of using the Windows Store.
What are the requirements for your app to be loaded onto PCs and devices in these organizations? (Choose all that apply.)
A. Your app must be signed with a certificate from a CA trusted by the target PCs and devices.
B. You should give your signed app and its dependencies to IT administrators in the
organizations.
C. You should send your app by email to the users who want to install and run your app.
D. IT administrators can deploy your app using a Windows image or when the PC is in use.
E. You should ask the users to send you their PCs and devices so that you can install your app.
Answer: ABD
QUESTION 135
You have been asked to design a contact picker app.
Which contact fields are available in the ContactInformation class? (Choose all that apply.)
A. Name
B. Designation
C. Organization Name
D. Work Address
E. Work Phone Number
Answer: ADE
QUESTION 136
You are asked to design an app that acts as a provider of contacts.
The app must function on tablets, touch laptops, and PCs.
Which requirement is valid?
A. There is no need to consider the form factor or application’s view state.
B. The app should see whether the app is unsnapped; if not, it should attempt to unsnap it.
C. The app will function only when it is in the snapped state.
D. The system checks for the application’s view state and carries layout changes accordingly.
Answer: B
QUESTION 137
You are developing a Windows Store app and you have been asked to investigate the feasibility of supporting contracts in the app via the charms bar.
Which Windows 8 contract features are applicable to your app? (Choose all that apply.)
A. The charms bar is available only in touch-based devices.
B. A Search contract can be used to search within a page that is currently visible.
C. The app will be available as a share target if the Share Target contract is implemented.
D. The Settings charm is available for all Windows Store apps to provide settings commands.
E. Query suggestions and result recommendations improve the usability of the application.
Answer: CDE
QUESTION 138
In a Windows Store app, you can use the Settings charm to provide a number of commands with their respective settings flyouts.
Which commands should you implement in the Settings charm for your app? (Choose all that apply.)
A. Account/session management
B. Theme preferences
C. A shortcut to close the app
D. An option for the user to provide feedback on the app
E. An option to share content from within your app
Answer: ABD
QUESTION 139
You need to support app activation via search.
Which event is invoked by the system in your app when it is activated?
A. OnWindowCreated
B. OnLaunched
C. OnSearchActivated
D. OnActivated
Answer: C
QUESTION 140
You are preparing to implement the Search contract in your app.
Which event handlers should you consider implementing in your app to provide a rich user experience? (Choose all that apply.)
A. The QuerySubmitted event, which fires when the user submits a search query
B. The QueryChanged event, which fires when the user changes a search query
C. The Loaded event of the Page class. which fires when the search results page is loaded
D. The OnSearchActivated event, which fires when the app is activated through search
E. The Unloaded event of the You can use the SearchPane class to provide search suggestions
to your app’s users. Which event should you handle to provide search suggestions?
F. QueryChanged
G. SuggestionsRequested
H. ResultSuggestionChosen
I. QuerySubmitted
Answer: ABD
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