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QUESTION 21
Hotspot Question
You are developing a Windows Store app.
The app has the following requirements:
– It must allow users to choose contacts by using a ContactPicker class.
– It must continue to be responsive while the ContactPicker class is displayed.
You need to ensure that the ContactPicker class is displayed to meet the requirements.
How should you complete the code segment? (To answer, select the appropriate line of code from each drop-down list in the answer area.)
Answer:
QUESTION 22
Drag and Drop Question
You are developing a Windows Store app.
You need to create an animation that moves a rectangle horizontally across the screen by using a storyboard.
What should you do? (To answer, drag the appropriate option to the correct location or locations in the answer area. Each option 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:
Case Study 1: Margie’s Travel (QUESTION 23 – QUESTION 38)
Background
You are developing a Windows Store media sharing app for the sales and marketing team at Margie’s Travel. The app will allow team members to download documents and media about current and proposed products and services from the company’s cloud-based media manager service. Team members will be able to add new content to the cloud service and to print and share content.
Business Requirements
Behavior:
– Team members must be able to download product information data sheets, marketing materials, and product demonstration video clips from the company’s server.
– Team members must be able to select and upload multiple files that contain new and modified content as a batch.
– Team members must be able to stream video clips to other devices in the vicinity of the team member’s device. The app will not support the streaming of photographs.
– The app must allow team members to pause, restart, or cancel uploads and downloads of files. The app must report both the progress and completion status of these operations. It must also return results about upload and download operations.
User Interface:
– The app must include a photo viewer- When photos are added or deleted in the photo viewer window, they must animate in and out of the field of view. Remaining photos must move to fill the empty space created when photos are deleted. The photo viewer must support semantic zoom.
– The app must display information on the lock screen of the device. The information must include text-based alerts and a value indicating the number of pending file downloads.
Technical Requirements
Behavior:
– The company has an existing component named VideoProcessor. This component compresses video clips and performs other processing before the video clips are uploaded to the media manager service. The component was written with managed code. The VideoProcessor component will also be used by Windows Store apps developed in HTML5 and JavaScript. The apps must be able to call the overload of the ProcessVideo() method that accepts a string and a Boolean value as parameters.
– When a team member selects a video clip to download, the app must download the file as a background task. After a download has started, the app should maintain the network connection to the server even when the app is suspended.
User Interface:
– The app must include a custom photo viewer control. The control will be updated frequently and may be deployed separately from the rest of the app. The photo viewer control must support templates and styles.
User Interface:
– The app must include a custom photo viewer control. The control will be updated frequently and may be deployed separately from the rest of the app. The photo viewer control must support templates and styles.
– The app must use a Grid control as the root layout control. The photo viewer must be placed in the second row of the grid.
– The appearance of the app must change when the app is in snapped mode. The first row of the root layout grid must not change height. The second row must fill all available space.
– Available video clips must be displayed in an extended ListView control class named Downloaded VideoList.
– The template for the DownloadedVideoList is already defined.
– New video clips should be added to DownloadedVideoList when the DownloadVideoQ method completes.
– New video clip items in the DownloadedVideoList should color change periodically to alert the team member.
Application Structure
Relevant portions of the app files are as follows. (Line numbers in the code segments are included for reference only and include a two-character prefix that denotes the specific file to which they belong.)
QUESTION 23
Hotspot Question
You need to meet the business requirements about downloading and uploading.
How should you configure the app? (To answer, select the appropriate options from each dropdown list in the answer area.)
Answer:
QUESTION 24
You need to implement the business requirement to display video clips.
Which code segment should you use in the MainPage.xaml file?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
QUESTION 25
You need to implement downloading of media files and other content.
Which code segment should you add to App.xaml.cs?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
QUESTION 26
You need to ensure that the app uploads media and files to the media manager service.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
Answer: CD
QUESTION 27
Drag and Drop Question
You need to implement the photo viewer page to meet the business requirements.
How should you complete the code segment? (To answer, drag the appropriate [source or sources] to the correct location or locations in the answer area.)
Answer:
QUESTION 28
You need to implement a custom control to display thumbnail images of video clips.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
QUESTION 29
Hotspot Question
You need to configure the app manifest to support the file download requirements.
Which task type property should you specify? (To answer, select the appropriate property in the answer area.)
Answer:
QUESTION 30
You need to implement the requirements for the playback of media.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Add the following line of code at line MC02.private void ShowPlayTo()
{Windows.Media.PlayTo.PlayToManager.ShowPlayToUI();}
B. Add the following line of code at line MC06. ptMgr.DefauitSourceSelection = false;
C. Add the following line of code at line MC10. ptMgr.PlayRequested += SourceRequestHandler;
D. Add the following line of code at line MC05. ptMgr.SourceRequested += SourceRequestHandler;
Answer: BD
QUESTION 31
You need to implement the requirements for the behavior of the main page.
Which code segment should you insert at line MP07?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
QUESTION 32
Hotspot Question
You need to meet the business requirements about downloading and uploading.
How should you configure the app? (To answer, select the appropriate options from each dropdown list in the answer area.)
Answer:
QUESTION 33
You need to ensure that the VideoProcessor component can be used by the Windows Store app. What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Add the following attribute to line IP19.
[Windows.Foundation.Metadata.DefaultOverload()]
B. Replace line IP01 with the following line of code.
Static class VideoProcessor
C. Replace line IP09 with the following line of code.
Public VideoProcessor(string videoName, int ID)
D. Add the following attribute to line IP14.
[Windows.Foundation.Metadata.DefaultOverload()]
E. Replace line IP01 with the following line of code.
Public sealed class VideoProcessor
Answer: ACE
QUESTION 34
You need to implement the business requirements for providing information about file uploads and downloads.
Which code segment should you use in the VideoProcessor.es class?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
QUESTION 35
You need to implement the requirements for streaming media.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Enable access to the Videos Library.
B. Ensure that the app stays in the foreground while media is being streamed.
C. Enable access to the Pictures Library.
D. Register for the SourceRequested event.
E. Enable access to the Music Library.
F. Register for the PlayRequested event.
Answer: AD
Explanation:
From scenario:
Team members must be able to stream video clips to other devices in the vicinity of the team member’s device. The app will not support the streaming of photographs.
D: You can use Play To to stream the audio or video in your application, as well as images, by implementing the Play To contract. To implement the Play To contract in your application, register for the sourceRequested event.
Note:
To register for the sourceRequested event, get a reference to the current PlayToManager by calling the getForCurrentView method.
You can then call addEventHandler on the PlayToManager to associate your event handler with the sourceRequested event. In your event handler, pass the media element from your application to the setSource method of the PlayToSourceRequestedEventArgs object passed to the event handler as shown in the following example.
// Play To Contract
private Windows.Media.PlayTo.PlayToManager ptm = Windows.Media.PlayTo.PlayToManager.GetForCurrentView();
protected override void OnNavigatedTo(NavigationEventArgs e) {
ptm.SourceRequested += sourceRequestHandler;
}
private void sourceRequestHandler(
Etc.
QUESTION 36
You need to implement the behavior requirements for the photo viewer.
Which controls should you create?
A. Create two SemanticZoom controls and one ListView control.
B. Create one SemanticZoom control and one ListView control.
C. Create one ScrollViewer control, one SemanticZoom control, and one GridView control.
D. Create two GridView controls and one SemanticZoom control.
Answer: D
QUESTION 37
You need to implement the photo viewer control to meet the requirements.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Add the themes\generic.xaml file to the project and reference it from the control.
B. Create a composite control.
C. Create a user control.
D. Create a custom control.
E. In the constructor of the class, set the value of the DefaultStyleKey to the type of the control.
Answer: CDE
QUESTION 38
Drag and Drop Question
You need to implement the photo viewer page to meet the business requirements.
You have the following code:
Which code snippets should you include in Target 1 and Target 2 to complete the code? (To answer, drag the appropriate code snippets to the correct targets in the answer area. Each code snippet 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:
Case Study 2: Geese (QUESTION 39 – QUESTION 55)
Background
You are developing a Windows Store app. The app will allow ornithologists to photograph migrating geese, taking note of the location, heading, and weather conditions at the time each photo is taken.
BusinessRequirements
The app must adhere to the following requirements:
– Create and store photographs of migrating geese.
– Record the location and weather conditions where the photograph was taken.
– Record the heading and time that the photograph was taken.
– Allow the user to display the information on any device that supports the PlayTo feature.
TechnicalRequirements
General:
The app must meet the following technical requirements:
– The app must store images and image metadata in the Pictures Library.
– The metadata logic must be encapsulated within a reusable component named LogicComponentl.
– The metadata logic must be available to Windows Store apps written in Visual Basic, C#, JavaScript, and C++.
Hardware:
– The app requires a device with camera, compass, and GPS features.
– The app requires a device with Internet capabilities.
QUESTION 39
Drag and Drop Question
You need to allow users to capture video instead of photos.
How should you complete the code segment that will replace lines MP03 through MP11? (To answer, drag the appropriate lines of code to the correct location or 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:
http://msdn.microsoft.com/en-us/library/windows/apps/BR241030
QUESTION 40
You need to set the WhiteBalance property for the app.
Which line of code should you insert at line CA10?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
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