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QUESTION 21
You are developing a Windows Store app that creates and prints personal ID badges. When the badge is completed, the app will display an image of the badge.
Users must be able to print completed ID badges. The app must adhere to printing guidelines for Windows Store apps.
You need to implement the printing strategy.
What is the best approach to achieve the goal? More than one answer choice may achieve the goal.
Select the BEST answer.
A. Unregister the default Print contract. Call the window.print() function to print directly from the app.
B. Register for the Print contract. Call the window.printQ function to print the page.
C. Register for the Print contract. Add an in-app Print button that invokes the Devices charm below the badge image.
D. Unregister the default Print contract. Add an in-app Print button that invokes the Devices charm below the badge image.
Correct Answer: C QUESTION 22
You are developing a Windows Store app that will allow users to take photos by using the built-in device camera. The app will immediately open the photo for
editing.
You need to programmatically specify the location from which to open the most recent photo taken by the app.
What is the best option to achieve the goal? More than one answer choice may achieve the goal. Select the BEST answer.
A. KnownFolders.pictureslibrary
B. SkyDrive.Pictures
C. KnownFolders.savedPictures
D. KnownFolders.cameraRoll
Correct Answer: D QUESTION 23
You are developing a Windows Store app that uses Windows Push Notification Services (WNS). The app includes the following code:
The app must poll a notification service every 30 minutes and update the app tile with new content. You need to initiate polling. Which code segment should you insert at line 05?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: B QUESTION 24
You are developing a Windows Store app by using JavaScript.
You need to ensure that the user can capture a photograph with the built-in camera and then process the resulting file.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: A
QUESTION 25
You are developing a Windows Store app by using JavaScript. The app contains the following code. (Line numbers are included for reference only).
You need to ensure that the app will handle any possible event for a media connection in a Play To streaming operation. How should you complete the relevant code? (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
F. Option F Correct Answer: ABF QUESTION 26
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 C
D.
Option D Correct Answer: C QUESTION 27
You are developing a Windows Store style app by using JavaScript.
You plan to use Windows Push Notification Services (WNS).
You need to register the app with WNS to receive push notifications.
Which credentials should you provide to WNS? (Each correct answer presents part of the solution.
Choose all that apply.)
A. Package security identifier
B. Package private key
C. Publisher security identifier
D. Client secret
E. Package name
Correct Answer: ABC QUESTION 28
You develop a Windows Store app that consumes a WinMD component from Contoso.Class1. Class1 contains an overloaded method named GetValue. The method overloads have the characteristics described in the following table.
The app includes the JavaScript code shown in the following code segment.
You need to correctly evaluate the output of the myOutput.innerHTML attribute. What is the output value?
A. Hello, World, 21, 15
B. 0, 21, 15.5
C. 0, 21, 15
D. Hello, World, 21, 15.5 Correct Answer: C QUESTION 29
You are developing a Windows Store app that will access a device’s webcam.
The app will use a custom control panel to enable camera modifications.
You need to specify that the app will use the custom control panel.
What should you do in the Visual Studio IDE?
A. In the Extension Manager, set a reference to the Windows.Devices.Enumeration.winmd file.
B. On the Capabilities tab of the Manifest Designer, select the Webcam check box.
C. On the Declarations tab of the Manifest Designer, choose Camera Settings.
D. In the Reference Manager, set a reference to the Windows.Devices.Sensors.winmd file. Correct Answer: C
QUESTION 30
You are developing a Windows Store app by using JavaScript. The app will track oil prices, The app must display oil prices on the lock screen and continue to run
while dormant.
You plan to use a background task to refresh oil prices in the app.
You need to design the background task to provide up-to-date information and to minimize system resource requirements.
What should you do?
A. Use a ControlChannelTrigger object that has CPU utilization set to Low if the OnBattery condition is true or Normal if the OnCharge condition is true. Persist data to local storage.
B. Use a TimeTrigger object to poll for data at one-minute intervals, and push the most recent available data to the app.
C. Use a TimeTrigger object to poll for data at five-minute intervals, and push the most recent available data to persistent storage.
D. Register the app with a Windows Push Notification Services (WNS) service, and use a Trigger object to deliver the most recent oil quotes to persistent storage. Correct Answer: D QUESTION 31
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. AudioVideo
B. IrDa
C. PersonalHealthcare
D. Printer
Correct Answer: BC QUESTION 32
You develop a Windows Store app that allows users to share pictures with friends. You submit the app to the Windows Store.
You need to implement a privacy policy for the app.
Which three actions should you perform? Each correct answer presents part of the solution.
A. Post the privacy policy to the Windows Dev Center.
B. Post the privacy policy to your website.
C. Display a link to the privacy policy in the Settings charm for the app.
D. Display a link to the privacy policy in the app description section of the Windows Store.
E. Display a link to the privacy policy in the app bar for the app.
Correct Answer: BCD QUESTION 33
You are developing a Windows Store app. You are adding print capabilities to the app. The app includes the following JavaScript code segment. Line numbers are included for reference only.
The app must display only the following printer options:
Number of copies
Single-sided or double-sided printing
You need to configure the printing capabilities for the app. Which code segment should you insert at line 03?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: A QUESTION 34
You are developing a Windows Store app by using JavaScript. The app will be installed on five devices. The app will use certificates to secure communications
between the five devices.
Information sent through the app must be decrypted only by the intended recipient device.
You need to complete the certificate enrollment.
What should you do?
A. Create a single certificate enrollment request on one device and import the certificate to the other four devices.
B. Create a single group certificate enrollment request on one device and share the public and private keys with the other four devices.
C. Create a certificate enrollment request on each device and install the respective response on each device.
D. Create a single certificate enrollment request on one device and share only the public key with the other four devices.
Correct Answer: C QUESTION 35
You are developing a Windows Store app that will support the Play To feature.
You need to implement the user interface for the Play To feature.
What is the best approach to achieve the goal? More than one answer choice may achieve the goal.
Select the BEST answer.
A. Enable the user to invoke the Play To feature by swiping to display the Devices charm flyout.
B. Provide an HTML button control in the user interface that programmatically invokes the Devices charm flyout.
C. Provide a standard Play To glyph in the user interface that programmatically invokes the Devices charm flyout.
D. Enable the operating system to handle the Play To feature asynchronously without requiring user interaction.
Correct Answer: C QUESTION 36
You are developing a line-of-business Windows Store app that will interact with a magnetic stripe reader. Your company distributes the magnetic stripe reader to
an end user.
You need to activate the magnetic stripe reader.
Which method should you use?
A. GetSupportedSymbologiesAsync
B. GetSupportedProfiles
C. GetDefaultAsync
D. CheckHealthAsync
Correct Answer: C QUESTION 37
You develop a Windows Store app.
You need to ensure that the app will pass certification and successfully run on Windows RT devices.
What is the best approach to achieve the goal? More than one answer choice may achieve the goal.
Select the BEST answer.
A. Test the app on an x86 development device in emulated mode by using Windows App Certification Kit for Windows RT.
B. Register the app in the Windows Store and run the Application Verifier for Windows on the uploaded app.
C. Test the app on an x86 development device by using the Windows App Certification Kit.
D. Test the app on a Windows RT device by using the Windows App Certification Kit for Windows RT.
Correct Answer: C QUESTION 38
You are developing a Windows Store app by using JavaScript. The app will create media files and copy them to a removable storage device.
If the storage device becomes unavailable while files are being copied, the copy operation must resume after the device becomes available.
You need to ensure that the app can subscribe to device updates.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: B QUESTION 39
You are developing a Windows Store app by using JavaScript. The app contains a custom C# Windows Runtime Metadata (WinMD) component.
You receive unexpected results when you run the app.
You need to ensure that you can debug the WinMD component while running the JavaScript app.
What should you do?
A. In the JavaScript project, set the Debug Type to Mixed (Managed and Native).
B. Enable Just-In-Time debugging for all types of code.
C. In the JavaScript project, change the Debug Type to Native with Script.
D. In the C# project, set the Debug Type to Mixed (Managed and Native).
Correct Answer: A QUESTION 40
You are creating a Windows Store app for a retail business. You must enumerate the available human interface devices (HIDs) on the client computer. You need to use the Windows.Devices.HumanlnterfaceDevice namespace to detect the available devices.
What types of devices can you detect?
A. A wireless router
B. A USB mouse that uses a native Windows 8.1 device driver
C. A built-in accelerometer
D. A game controller that uses a custom manufacturer-supplied device driver
Correct Answer: B QUESTION 41
You are developing a Windows Store app by using JavaScript.
You need to ensure that the user can capture video with the built-in camera and then process the resulting file.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 42
You are developing a Windows Store app by using JavaScript. The app will use an accelerometer to detect user movements that affect the host device. (In the
code segments, accelerometer is an instance of the sensor that is connected to the host device.)
The app must report user movement either once every five seconds or at the device’s most frequent polling interval available, whichever is less frequent.
You need to configure the accelerometer to meet the requirements.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: C QUESTION 43
You are developing a Windows Store app. The app will allow users to upload and share text messages.
The app must upload each message to a Windows Azure back-end database. The stored data must be encrypted by using public/private key encryption.
You need to implement data encryption for the app.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D QUESTION 44
You are developing a Windows Store app that will access a device’s webcam. All necessary device capabilities have been declared in the app manifest.
The app must not throw an error if the user has declined or revoked permission to the webcam.
You need to identify whether the app has permission to use the webcam.
What should you do?
A. Using the CameraCaptureUI class, test for the value returned by the CaptureFileAsync method.
B. Using the CameraCaptureUI class, test for the value returned by the videoSettings property.
C. Using the MediaCapture class, test for the value returned by the async method.
D. Using the MediaCapture class, test for the value returned by the MediaCaptureSettings property. Correct Answer: C QUESTION 45
You are developing a Windows Store app that will display a greeting. You use the following JavaScript code to localize app content;
You plan to move the localization functionality from the JavaScript code to the HTML markup. Which HTML markup segment should you use to localize the greeting?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: B QUESTION 46
You create an inventory management app for tablets. The app uses a peripheral barcode scanner device.
You need to activate the barcode scanner,
Which class and method should you use?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: C QUESTION 47
You are developing a line-of-business Windows Store app that will interact with a magnetic stripe reader. Your company distributes the magnetic stripe reader to
an end user.
You need to activate the magnetic stripe reader.
Which method should you use?
A. RetrieveStatisticsAsync
B. CheckHealthAsync
C. FromldAsync
D. GetSupportedProfiles Correct Answer: A QUESTION 48
You are developing a Windows Store app by using JavaScript.
The app will exchange small amounts of data with peerapps by using near field communication, The peerapps run on other computers within range.
You need to advertise the app by using proximity tapping.
Which function call or calls should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D QUESTION 49
You are creating a Windows Store app for a retail business. You must enumerate the available human interface devices (HIDs) on the client computer.
You need to use the Windows.Devices.HumaninterfaceDevice namespace to detect the available devices.
What types of devices can you detect?
A. an internal camera device
B. a remote networked 3D printer
C. a wireless router
D. a Bluetooth-enabled joystick that uses a native Windows 8.1 device driver Correct Answer: A QUESTION 50
You are developing a Windows Store photography app by using JavaScript. The app includes the following code segment. (Line numbers are included for reference only.)
You need to ensure that the app captures all pictures as landscape-oriented photos at the maximum resolution. Which code segment should you insert at line 03?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D
QUESTION 51
You are developing a Windows Store app that includes a JavaScript class named Plane. The Plane class includes the following JavaScript code. Line numbers are included for reference only.
You need to complete the implementation of the Plane class.
Which two code segments should you use? Each correct answer presents part of the solution.
A. Option A
B. Option B
C. Option C
D. Option D
E. Option E
Correct Answer: CE QUESTION 52
You are creating a custom control by using HTML5.
You need to bind a source named myDataSource to the control.
Which HTML markup should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: A QUESTION 53
You develop a Windows Store app.
The app user interface is slow to load, and occasionally stops responding.
You need to increase the responsiveness of the user interface.
What should you implement?
A. the Await operator
B. Windows Runtime Metadata (WinMD) components
C. promises
D. the Web API of the Windows Library for JavaScript Correct Answer: B QUESTION 54
You are developing a Windows Store app by using JavaScript. The app will be used to create video blogs. The app uses the device’s internal camera.
The app must meet the following requirements:
Allow the user to record audio and video.
Save files in the .mp4 file format.
Store files in the user’s Videos library.
You need to ensure that the app meets the requirements.
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.)
Select and Place:
Correct Answer:
QUESTION 55
You develop a Windows Store app that uses several new user interface features.
You need to declare capabilities in the application manifest so that you can submit the app to the Windows Store.
How should you complete the relevant markup? (To answer, drag the appropriate markup segments to the correct locations in the answer area. Each 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.)
Select and Place:
Correct Answer:
QUESTION 56
You develop a Windows Store app that allows users to record audio notes.
You need to store the notes in the device’s Music library.
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.)
Select and Place:
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