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Application Information
You are developing two Windows Store apps by using JavaScript: a Personal Trainer app and a Client app. The apps will allow personal fitness trainers to interact with their remote clients.
Business Requirements- Personal Trainer Application
The Personal Trainer app must allow trainers to perform the following tasks:
Create and store video and audio recordings of workout routines.
View the profile and workout recordings for only one client at any time.
Business Requirements- Client Application
The Client app must allow clients to perform the following tasks:
Browse a list of the trainer’s workout recordings.
Record workouts by using the built-in webcam.
Play, pause, restart, and stop workout recordings.
If the capability is supported, allow the client’s webcam to pan as the client moves around the room.
Upload workout recordings for trainer review.
Update their individual profiles to indicate workouts completed, calories burned, and current weight.
The Client app must validate that the client’s subscription is valid.
Technical Requirements- General
The Personal Trainer and Client apps must meet the following technical requirements:
Connect to the Internet.
Store workout recordings in the cloud.
Enable retrieval of workout recordings by using a custom URL.
Encapsulate the video player in a custom control.
Identify the maximum zoom of the user’s webcam in millimeters.
Store client profiles in XML files in the trainers’ Documents folders to allow for disconnected editing.
Synchronize the XML files with cloud storage by using a background task when the Internet is available.
Send trainer workout videos to cloud storage by using a background task when the trainer’s device is idle. Indicate the status of the upload operation each time the trainer starts the app. Suspend the background task when the Internet is not available.
Separate business and complex logic into WinMD components. The solution debugging settings must include the WinMD components.
Technical Requirements- Hardware Requirements
The Personal Trainer and Client apps must support the following hardware requirements:
Windows 8
Webcam, microphone, and speakers
Internet connection
While testing the apps, you identify the following issues:
When you start the app for the first time, the system displays this warning message: “This app needs permission to use your camera, which you can change in the app’s settings.”
When you run the loadClientProfile( ) method in the clientData.js file, you receive an “Access Denied” exception.
The findCamera( ) method in the video.js file throws an exception on some devices.
The recordVideo( ) method in the video.js file throws an exception when the device does not support tilting.
clientData.js
QUESTION 1
You need to complete the code to start the background task. Which code segment should you insert at line BG07?
A. Windows.ApplicationModel.Background.SystemTriggerType.connectedStateChange, true
B. Windows.ApplicationModel.Background.SystemTriggerType.networkStateChange, false
C. Windows.ApplicationModel.Background.SystemTriggerType.sessionConnected, true
D. Windows.ApplicationModel.Background.SystemTriggerType.internetAvailable, false
Correct Answer: D QUESTION 2
You need to identify the required camera specifications. Which code segment should you insert at line VD06?
A. var maxZoom = videoDev.zoom.capabilities.max;
B. var cameraType = videoDev.extendedZoomProperties(“cameraType”);
C. var cameraZoom = videoDev.zoom;
D. var minZoom = mediaCaptureSettings.min.millimeters; Correct Answer: A QUESTION 3
You need to attach the background task.
Which code segment should you insert at line BG09?
A. var task = builder.register( );
B. var task = Windows. ApplicationModel.Background.BackgroundTaskBuilder.insert (builder);
C. var task: = Windows.ApplicationModel.Background.BackgroundTaskBuilder.insert (builder, this);
D. var task = builder.setTrigger ( );
Correct Answer: A QUESTION 4
You need to set the default storage location for the client profiles. Which code segment should you insert at line CD04?
A. fop.defaultFolder = Windows.Storage.Pickers.PickerLocationId.documentsLibrary;
B. fop.defaultFolder = environment.getFolderPath (environment.specialFolder.applicationData);
C. fop.suggestedStartLocation = “%AppData%”;
D. fop.suggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.documentsLibrary;
Correct Answer: A QUESTION 5
You need to prevent the exception that is being thrown by the findCamera( ) method. What should you do?
A. Check the devices collection for multiple devices.
B. Place a try block immediately after line VD12 and a catch block immediately before line VD17. In the catch block, display the message property of the exception object to the user.
C. In line VD10, set the cameraID variable to null.
D. Check the devices collection for null before setting the cameraID variable. Correct Answer: D QUESTION 6
You need to debug the error that is displayed in the warning message. What should you do?
A. In the package.appxmanifest file, set the Webcam property in the Capabilities list.
B. Insert the following code segment at line VD18: var dialog = new Windows.Media.Capture.CameraCaptureUI( ); dialog.photoSettings.enableCamera( );
C. In the package.appxmanifest file, add Camera Settings to the available declarations.
D. Insert the following code segment at line VD18: var dialog = new Windows.Media.Capture.CameraCaptureUT( ); dialog.videoSet tings.enableCamera ( );
Correct Answer: A QUESTION 7
You need to ensure that client profiles can be saved in the required file format. Which code segment should you insert at line CD21?
A. fop.suggestedSaveFile = “*.txt”;
B. sp.fileTypeChoices.insert(“Client Files”, [“.txt”]);
C. sp.fileTypeChoices = new.fileTypeItem(“Client Files”, [“.xml”]);
D. sp.fileTypeChoices.insert(“Client Files”, “.xml”]); Correct Answer: D QUESTION 8
You need to validate whether the additional video recording functionality for the Client app is supported. Which code segment should you insert at line VD05?
A. var canPan = mediaCaptureSettings.pan.capabilities.supported;
B. var canPan = videoDev.pan.capabilities.supported;
C. var canTilt = videoDev.getDeviceProperty(“tilt”);
D. var canTilt = videoEev.getDeviceProperty(“tilt supported”); Correct Answer: B QUESTION 9
You need to handle the exception error in the clientData.js file. What should you do?
A. Modify the display function to handle the error.
B. Insert a try statement immediately after line CD07 and a catch block immediately before line CD14. Handle the error in the catch block.
C. Modify the processError function to handle the error.
D. Insert a try statement immediately after line CD01 and a catch block immediately before line CD15. Handle the error in the catch block.
Correct Answer: A QUESTION 10
You need to validate whether the additional video recording functionality for the Client app is supported. Which code segment should you insert at line VD05?
A. var canFocus = videoDev.getEeviceProperty(“focus”);
B. var car.Zoom = videoDev.getEeviceProperty (“zoom”) ;
C. var canPan = videoDev.pan.capabilities.supported;
D. var canPan = mediaCaptureSettings.pan.capabilities .supported; Correct Answer: C QUESTION 11
You need to attach the background task.
Which code segment should you insert at line BG09?
A. var task = builder.setTrigger(this);
B. var task = builder.setTrigger( );
C. var task = builder.register ( );
D. var task = builder.register (this);
Correct Answer: C QUESTION 12
You need to enable trainers to select client profiles. Which code segment should you insert at line CD06?
A. fop.pickMultipleFileAsync ( ). then(
B. fop.pickFileAsync ( ). then (
C. fop.pickSingleFileAsync ( ) .then{
D. fop.pickSingleFile ( ).then ( Correct Answer: C QUESTION 13
You need to prevent the device-specific tilting exception. What should you do in the video.js file?
A. Insert a try statement immediately after line VD01 and a catch block immediately before line VD08. Handle the VideoNotFound exception.
B. Evaluate the canTilt variable. If true, bypass the code that tilts the camera.
C. Evaluate the canTilt variable. If false, bypass the code that tilts the camera.
D. Insert a try statement immediately after line VD01 and a catch block immediately before line VD08. Handle the MediaNotFound exception.
Correct Answer: C QUESTION 14
You need to retrieve the background task collection for the iteration loop. Which code segment should you insert at line BG14?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 15
You need to separate the business and complex logic into components.
Which actions should you perform? (Each correct answer presents part of the solution. Choose all that apply.)
A. In the JavaScript code, register the handler for the extension/mime-type.
B. In the package.appxmanifest file, create an Extensions section and register the component .dll file.
C. In Windows Explorer, drag the component .dll file to the project bin directory.
D. In Microsoft Visual Studio Solution Explorer, right-click the References folder and then click Scope to This.
Correct Answer: AB QUESTION 16
You need to enable debugging on the Personal Trainer app.
Which JavaScript project properties should you set? (Each correct answer presents part of the solution Choose all that apply.)
A. Set Allow Local Network Loopback to No.
B. Set Debugger Type to Script Only.
C. Set Debugger Type to Managed Only.
D. Set Debugger to launch to Local Machine. Correct Answer: BD
Testlet 1
Scenario 2
Background
You are developing a Windows Store app by using JavaScript. The app is named Getting Around. The app will use geo-location to provide location-aware assistance to people who are traveling. Users will record audio information about locations.
Full and trial versions of the app will be available from the Windows Store. The feature name of the full version will be gettingAround. The trial version will be valid for 30 days.
Business Requirements
The Getting Around app must meet the following business requirements:
Track the user’s current location in accordance with the Windows Certification guidelines for devices and sensors.
Notify the user about upcoming obstacles.
Ensure that the user can play, pause, and stop audio recordings.
Ensure that the user can listen to recordings on Digital Living Network Alliance (DLNA)-compatible headphones.
Technical Requirements
The Getting Around app must meet the following technical requirements:
Connect to the Internet.
Use the device’s sensors to detect the user’s location.
Every 15 minutes, poll an obstacles database that is stored in the cloud.
Send messages about upcoming obstacles to the lock screen of the user’s device as soon as an obstacle is detected.
Enable the user to save the most recently recorded location information on the device by using a DataCompositeValue object.
Enable retrieval of audio recordings from a cloud server.
Headphones, when connected, must use the Play To technology. The PlayTo control that is used for streaming is named aplayer and is in the HTML file that is used by the player.js file.
To assist with diagnostics and monitoring, the app must do the following:
Place an audit log that will track touch events on the user’s device.
Store the audit log in the user’s localSettings object.
Ensure that the audit log can be sent by email to the support desk if the user is having problems.
The app must support the following hardware requirements:
Windows 8
Microphone and speakers
Internet connection
DLNA-compatible hearing device (optional)
While testing the app, you establish the following:
The app fails to detect the location on some devices.
When connectivity is lost, access to the obstacle data is not available.
background.js
QUESTION 1
You need to retrieve and register a DLNA-compatible device. Which code segment should you insert at line PL16?
A. var player = Windows.Media=Devices.AudioDeviceController ( );
B. var player = Windows.Media.Devices.DLNADeviceController ( );
C. var player = Windows-Media,PlayTo.PlayToManager.getForCurrentView( ); player. addsventListener(“sourcerequested”, sourceRequestHandler, false);
D. var player = Windows.Media.PlayTo.PlayToManager.showPlayToUI ( ); player-addEventListener(“sourcerequested”, sourceRequestHandler, false);
Correct Answer: C QUESTION 2
You need to handle the location-detection problem. What should you do?
A. Insert a try statement immediately after line LO05 and a catch block immediately before line LO09. Handle the exception in the catch block.
B. Insert an else statement immediately before line LO09. In the else statement, display a notification that the device does not support location.
C. At line LO08, change the positionchanged argument to statuschanged.
D. At line LO06, change the Geolocator class to locator. Correct Answer: B QUESTION 3
You need to implement the audit log. Which object should you use?
A. Windows.Storage.ApplicationData.current.localSettings
B. Windows.Storage.ApplicationData.current.roamingFolder
C. Windows.Storage.ApplicationData.current.temporaryFolder
D. Windows.Storage.AppllcationData.current.temporarySettings
Correct Answer: A QUESTION 4
You need to ensure that the lock screen access configuration meets the requirements. Which code segment should you insert at line BG05?
A. if (result = = background.BackgroundAccessStatus.allowedWithAlwaysOnRealTimeConnectivity)
B. if (result = = background.BackgroundAccessStatus.allowedMayUseActiveRealTimeConnectivity)
C. if (result ! = background.backgroundAccessStatus.allowedWithAlwaysOnRealTimeConnectivity)
D. if (result ! = background.backgroundAccessStatus.allowedMayUseActiveRealTimeConnectivity)
Correct Answer: A QUESTION 5
You need to implement the database polling.
Which code segment should you insert at line BG14?
A. var trigger = new Windows.ApplicationModel.Background.TimeTrigger (15, false);
B. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(600, false);
C. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(900, true);
D. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(10, true);
Correct Answer: A QUESTION 6
You need to resolve the issue of unavailable obstacle data. What should you do?
A. Store the obstacle data in cloud storage.
B. Download the obstacles database when the app is installed, and update the database when the app is updated.
C. Store the obstacle data in indexDB storage.
D. Store the obstacle data in the SessionStorage object. Correct Answer: C QUESTION 7
You need to implement the audit log.
Which action should the app perform when the user touches a button?
A. Add a row to a database log table.
B. Create a custom log file entry.
C. Send the event to a remote web service.
D. Create a Windows Application Log entry.
Correct Answer: B
QUESTION 8
You need to turn off tracking.
Which code segment should you insert at line L032?
A. location.removeEventListener(“statuschanged”, statusChanged);
B. location.removeEventListener.all( ) ;
C. location.endTracking ( ) ;
D. location.removeEventListener(“positior.changed”, positionChanged); Correct Answer: D QUESTION 9
You need to ensure that the lock screen access configuration meets the requirements. Which code segment should you insert at line BG05?
A. if (result == background.3ackgroundAccessStatus.denied)
B. if (result = = background.backgroundAccessStatus.allowedWithAlwaysOnRealTimeConnectivity)
C. if (result = = background.backgroundAccessStatus.allowedMayUseActiveRealTimeConnectivity)
D. if (result == background.backgroundAccessStatus.unspecified)
Correct Answer: B QUESTION 10
You need to specify the media to be streamed to DLNA-compatible devices. Which code segment should you insert at line PL21?
A. controller = document.getElementById(“aplayer”).msPlayToSource;
B. controller = document.getElementById(“mediaplayer”).msPlayToPrimary;
C. controller = document.getElementBy!d(“aplayer”).msGetPointerCapture;
D. controller = document.getElementById ( “mediaplayer” ) .msRealTime; Correct Answer: A QUESTION 11
You need to implement the database polling.
Which code segment should you insert at line BG14?
A. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(1230, false) ;
B. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(15, false);
C. var trigger = new Windows.ApplicationModel.Background.TimeTrigger (900, true);
D. var trigger = new Windows.ApplicationModel.Background.TimeTrigger(20, true);
Correct Answer: A QUESTION 12
You need to implement the audit log. What should you do?
A. When the user moves the device, create a Windows Event Log entry.
B. When the user moves the device, create a custom log file entry.
C. When the user touches a button, create a Windows Event Log entry.
D. When the user touches a button, create a custom log file entry. Correct Answer: D QUESTION 13
You need to enable the user to save coordinates as specified in the requirements. Which code segment should you insert at line L036?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 14
You need to assign the audio stream to the controller declared at line PL20 according to the requirements. Which code segment should you insert at line PL27?
A. sr.stream = controller.stream;
B. sr.setSource{controller.stream);
C. sr.setSource(controller);
D. sr.setController(controller);
Correct Answer: C QUESTION 15
You need to find out whether the app is still in trial mode. Which property should you check in the app startup code?
A. Windows.ApplicationModel.Store.CurrentApp.licenseInformation.isActive
B. Windows.ApplicationModel.Store.CurrentApp.IicenseInformation.isTrial
C. Windows.ApplicationModel.Store.CurrentApp.licenseInformation.expiration.late
D. Windows.ApplicationModel.Store.CurrentApp.licenseInformation.productLicenses Correct Answer: C QUESTION 16
You need to find out whether the user has purchased the app. Which code segment should you insert in the default.js file?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: C
Testlet 1
Scenario 3
Background
A. Datum Corporation manufactures electronic measuring equipment that is sold worldwide. The equipment requires periodic inspection and calibration by a team of inspectors. The equipment supports near field communication (NFC).
Inspectors currently receive daily email messages that list the locations they must visit that day and the equipment they must inspect, calibrate, or update. To request schedule changes, inspectors must call, fax, or email a support center.
A. Datum plans to develop a Windows Store app that connects to a scheduling application hosted in Windows Azure. The app will allow inspectors to view client information, equipment information, and other documentation. Inspectors will use the app to report inspection results back to the company’s Windows Azure application.
Business Requirements
Inspectors must be able to use the app to perform the following equipment-related tasks:
Gather information about each piece of equipment during inspections.
Update equipment software and firmware during inspections.
Identify missing and outdated equipment.
Submit orders for replacement equipment to the customer support team.
The app must support the following scheduling requirements:
When an inspector signs in to the app, daily schedule and task information must automatically download to the inspector’s Windows device. The information must include client locations, equipment inventory at each location, and equipment settings. The files contain sensitive and proprietary information.
Inspectors must be able to request a list of other clients within a specified search distance who might require equipment inspection.
Inspectors must be able to refuse a task and remove it from their schedule.
Technical Requirements
File Download, Storage, and Security
When an inspector connects the app to a piece of equipment, the current equipment software, firmware, drivers, and updates must be copied to the inspector’s Microsoft SkyDrive folder.
Inspectors must be able to search for equipment software and firmware updates stored in their SkyDrive folders.
Downloaded files must be enrolled in selective wipe and made unavailable eight hours after download.
The app must use background tasks to download files to the users’ devices.
All content files downloaded for the inspector’s use must be available for searching in the app.
All data transferred by the app between the Windows devices and the Windows Azure application must be secured and encrypted.
Equipment Interface and Connections
While the app is connected to a piece of equipment, inspectors must be able to simultaneously display the app and the content of their SkyDrive folders.
The user interface must include a slide control that allows the inspector to specify a search range for nearby clients.
Inspectors must connect the app to any piece of equipment by using a tap connection.
File – Geofencing.js
Relevant portions of the app files are shown below. 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.
File – ProtectFile.js
Relevant portions of the app files are shown below. 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.
File – BackgroundTask.js
Relevant portions of the app files are shown below. 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 1
You need to implement the file security policy. What should you do?
A. Implement the Windows.Security.Cryptography.CryptographicBuffer class.
B. Add a certificate server to the network.
C. Use SSL for all file transfers.
D. Implement a Secure object by using the WinJS.System class. Correct Answer: A QUESTION 2
You need to implement the file storage solution for equipment drivers and updates. What should you do?
A. Map the inspector’s Documents folder as the default file storage location.
B. Map the inspector’s SkyDrive folder as the default file storage location.
C. Map a KnownFolder as the local default file storage location.
D. Use the Live Connect REST API to map a default file storage location.
Correct Answer: B QUESTION 3
You need to implement the secondary schedule functionality for inspectors.
Which two actions should you perform? Each correct answer presents part of the solution.
A. Specify the maximum distance of nearby equipment.
B. Ascertain the proximity of the nearest piece of client-owned equipment.
C. Define a geofence by using the location capabilities of the device.
D. Browse through the client database to find all clients with the same postal code. Correct Answer: AC QUESTION 4
You need to implement the Search features for the app. What should you do?
A. Add the app content to the Windows index.
B. Map a KnownFolder property for the search files location.
C. Modify the NeighboringFileQuery property.
D. Implement a default Bing Search control. Correct Answer: A QUESTION 5
You need to implement the activities that must occur when an inspector signs in.
What is the best approach to achieve the goal? More than one answer choice may achieve the goal. Select the BEST answer.
A. Create a task entry point that uses a BackgroundTaskBuilder object.
B. Create a new instance of the Windows Store app.
C. Create a new thread by using the System.Thread class.
D. Create an AJAX ScriptManager object. Correct Answer: A QUESTION 6
You need to implement the storage policy for secure documents. Which code segment should you insert at line PF12?
A. Windows.Security.EnterpriseEata.FileRevocationManager.protectAsync
B. Windows.Security.EnterpriseData.FileRevocationManager.revoke
C. Windows.Security.EnterpriseData.FileRevocationManager.copyProtectAsyrnc
D. Windows.Security.EnterpriseData.FileRevocationManager.getStatusAsync
Correct Answer: A QUESTION 7
You need to ensure that drivers can be updated, What should you do?
A. Connect to SkyDrive.
B. Implement the StorageLibrary class.
C. Implement the OpenFileDialog class.
D. Implement the FileSavePicker control. Correct Answer: A QUESTION 8
You need to enable the loading of the daily schedule when the inspector launches the application. Which class should you use?
A. BackgroundTaskBuilder
B. BackgroundExecutionManager
C. BackgroundTaskDeferral
D. SystemCondition
Correct Answer: B QUESTION 9
You need to ensure that drivers can be updated, What should you do?
A. Implement support for Microsoft DirectDraw Surface files.
B. Connect to the Documents library.
C. Create a custom driver to connect files to the app.
D. Implement the FileOpenPicker control. Correct Answer: A QUESTION 10
You need to ensure that inspectors can manage tasks that are assigned to them. Which code segment should you insert at line BT22?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 11
You need to enable the loading of the daily schedule when the inspector launches the application. Which class should you use?
A. BackgroundExecutionManager
B. BackgroundWorkCost
C. PushNotificationTrigger
D. BackgroundTaskBuilder
Correct Answer: A QUESTION 12
You need to enable the connection to the equipment.
Which app capability should you declare? To answer, select the appropriate check box in the dialog box in the answer area.
Hot Area:
Correct Answer:
Testlet 1 Scenario 4
Application Information
You are developing a Windows Store app by using JavaScript. The app is named Print Near Me. The app will allow mobile users to find printers in their local area that subscribe to the Print Near Me network.
The Print Near Me app collects status data from subscribed networks, coordinates this data with the status of printers that are listed in the central Print Near Me service, and displays the closest locations that meet a user’s printing requirements. The locations are identified by pinpoints on a map. The app uses a Printer Survey background task to populate the map.
The Print Here feature communicates with the central Print Near Me web server and nearby printers, and generates custom printer interfaces based on the available printers. The printer interfaces require complex calculations that involve repeated communications between the app and the central web server, and may result in high memory usage.
Printer providers may indicate whether a subscribed printer is available to the network or unavailable at any time.
Business Requirements
You have the following business requirements:
Printer providers must have the option to approve users for each printer through instant messaging or email.
When a user launches the Print Near Me app, the Printer Survey task must initiate communication between the app and the central web server to populate the map.
Map pinpoints must be displayed as follows:
o If the printer is available and does not require permission to print, display a green pinpoint.
o If the printer is available and requires permission to print, display a yellow pinpoint.
o If there is a printer or network status error, display a red pinpoint.
Users must be able to initiate printing to a nearby printer by clicking or tapping the printer’s pinpoint and then clicking Print Here.
Technical Requirements
You have the following technical requirements:
The Print Here feature must run in a background process.
The Printer Support feature must log and dispatch error messages.
o Log error messages locally.
o When the network is available, synchronize data with the central Print Near Me web server.
Background task events must be logged locally.
The printer interface calculations must use the Printer Survey task for communication to all sources.
The Printer Survey task must push data to the app when the app is available.
Testing Requirements
You have the following testing requirements:
Simulate user interactions in the app as part of the tests.
Test the app performance on a variety of devices that have different capabilities, such as processing speed and screen resolution.
Generate a file on each device for analysis in Microsoft Visual Studio. (Devices will not have Visual Studio installed.)
Identify the app components that are called most frequently and that use the most CPU resources.
Ensure that the app detects the location of all printers and consistently reports loss of connection.
printNearMe.js
printerSurvey.js
printDriver.js
QUESTION 1
You need to implement the Print Here Mature.
Which code segment should you insert at line PM21?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 2
You need to implement the Printer Survey error handling. Which code segment should you insert at line PS08?
A. WinJS.Promise.onError(this).done(printnearme_errhandler);
B. WinJS.Promise.done(this).then(printersurvey_errhandler);
C. WinJS.Promise.onError(WinJS.Promise.onerror, printersurvey_errhandler);
D. WinJS.Promise.addEventListener(“error”, printnearme errhandler);
Correct Answer: D QUESTION 3
You need to implement the Print Here command. Which code segment should you insert at line PM17?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: C QUESTION 4
You need to implement the Printer Support error logging. Which code segment should you insert at line PS18?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: B QUESTION 5
You need to ensure that the custom printer interfaces and the Printer Survey task communicate correctly. What should you do?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D
QUESTION 6
You need to update the status of the map pinpoints for the Print Near Me control. Which code segment should you insert at line PM34?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 7
You need to test connection reliability. What should you do?
A. Display the status of the tap gesture after the Start event. Test wireless connections by calling the ConnectAsync method.
B. Display the status of the tap gesture after the Start event. Test wireless connections by calling the FindAllPeersAsync method.
C. Display the status of the tap gesture after the TriggeredConnectionStateChanged event. Test wireless connections by calling the ConnectAsync method.
D. Display the status of the tap gesture after the TriggeredConnectionStateChanged event. Test wireless connections by calling the FindAllPeersAsync method.
Correct Answer: D QUESTION 8
You need to ensure that the Printer Survey task meets the technical requirements. Which code segment should you insert at line PS24?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: C QUESTION 9
You need to implement the required event logging. Which code segment should you insert at line PM38?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: B QUESTION 10
You need to implement the color coding for the Print Near Me map pinpoints. Which code segment should you insert at line PM44?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: C QUESTION 11
You need to generate the required test result files. What should you do?
A. Design tests to attach VSProfiler.exe to the Print Near Me app.
B. Create a unit test project. Record interactions between the user and the Print Near Me app.
C. Design tests to attach VSPerf.exe to the Print Near Me app.
D. Create a coded UI test project. Record interactions between the user and the Print Near Me app.
Correct Answer: C QUESTION 12
You need to ensure that the Printer Survey task populates the map pinpoints according to the requirements. Which code segment should you insert at line PM31?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: C QUESTION 13
You need to ensure that the Printer Survey task populates the map pinpoints according to the requirements.
What code should you insert at line PM31? (To answer, select the correct code segment from each dropdown list in the answer area.)
Hot Area:
Correct Answer:
Question Set 1 QUESTION 1
You are developing a Windows Store app by using HTML5 and JavaScript. The app has HEADER, NAV, and SECTION elements. The SECTION element
displays a list of records.
The app will allow users to sort records multiple times.
The app must meet the following requirements:
Each time the user performs a sort, replace the content in the SECTION element with the sorted records.
Animate the updated content by sliding the sorted records into the SECTION element. You need to use the WinJS library to apply the animation to the SECTION element. Which function should you use?
A.
enterPage( )
B.
enterContent( )
C.
createExpandAnimation ( )
D.
createPeekAnimation ( ) Correct Answer: B QUESTION 2
You are developing a custom tooltip control that inherits from an existing WinJS tooltip control. The custom control overrides the open ( ) method of the base
control to extend the functionality. The following code segment depicts the structure of the method override.
Open: function (type) {
· · ·
}
You need to ensure that the base method executes at the start of the override.
Which code segment should you use to call the base method?
A. this.base.open ( ) ;
B. this .super.open ( ) ;
C. base.open( ) ;
D. this.prototype.open( ); Correct Answer: B QUESTION 3
In the following code segment, three functions return WinJS.Promise objects.
You need to chain the promise operations to optimize error handling. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: A
QUESTION 4
You are creating a custom control named Contoso by using the following code segment. (Line numbers are included for reference only.)
You need to define the namespace.
Which code segment should you insert at line 01?
A. WinJS.Namespace.define (“Contoso”) ;
B. WinJS.Namespace.defineWithParent (“Contoso”) ;
C. WinJS.Class.define (“Contoso”) ;
D. WinJS.Class.defineWithParent (“Contoso”) ; Correct Answer: A QUESTION 5
You are developing a Window Store app by using JavaScript. The app will allow users to print documents by using a local printer. The following code segment registers the print contract:
You need to ensure that the app uses the Devices charm to access printers. Which code segments should you insert at lines 02 and 05?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: A QUESTION 6
You are developing a Windows Store app that uses Windows Push Notification Services (WNS). The app includes the following code:
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 7
You are developing a Windows Store app by using JavaScript. The app will use a custom print template for printing documents. The template will be provided in a
file named customTemplate.htm.
The file will be deployed as part of the app package.
The code segment below references two objects:
You need to ensure that the app displays the custom print template while printing the documents. Which code segment should you insert at line 05?
A. args.setSource(MSApp.getPrintDocumentSource(document, “customTemplate.htm”) ) ;
B. args.setSource(MSApp.getPrintDocumentSource(document, “ms- appx://printTemplates/customTemplate.htm”));
C. args.setSource(MSApp.getHtmlPrintDocumentSource(document, “ms- appdata:////customTemplate.htm”));
D. args.setSource(MSApp.getHtmlPrintDocumentSource(document, “ms- appx:////customTemplate.htm”)); Correct Answer: D QUESTION 8
You are creating a Windows Store app by using JavaScript. The app includes the following code segment:
You need to ensure that the app can receive push notifications from a calling app. Which code segment should you insert at line 05?
A. .createPushNotificationChannelForSecondaryTileAsync( ) ;
B. .createPuahNotificaticnChannelForApplicationAsync(id);
C. .createPushNotifIcacionChannelForApplicationAsync( );
D. .createPushNotif icationChannelForSecondaryTileAsync (id); Correct Answer: C
QUESTION 9
You are debugging a Windows Store app that another developer created by using HTML5 and JavaScript. The default.js file contains the following code segment:
The app has a screen that plays video files. The HTML5 video control on the screen has an ID of video1. You need to identify the effect of firing the source requested event. What will occur when the event fires?
A. The app will prompt the user to select a local video file for viewing in the video1 control.
B. The video will play in Windows Media Player on the host device.
C. The application will prompt the user to select a target device for streaming the video by using the video1 control.
D. The selected video file will play in the video1 control on the app screen.
Correct Answer: D QUESTION 10
You are developing a Windows Store app by using JavaScript. The app persists a list of restaurants in the app’s settings. The restaurant list is identified by a key
of city.
The app must allow users to remove their restaurant lists from the app’s settings. The following function call removes the city setting:
deleteListSetting(“city”) ;
You need to remove only city from the settings storage without disrupting other settings.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: C QUESTION 11
You are developing a Windows Store app by using JavaScript. The app will allow users to customize various features. The customizations will be persisted by
using the setAppSetting function.
You need to persist the customizations.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: B QUESTION 12
You are developing two Windows Store style 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 and decrypt data by using an asymmetric algorithm.
B. Encrypt and decrypt data by using a symmetric algorithm.
C. Encrypt data by using an asymmetric algorithm. Decrypt data by using a symmetric algorithm.
D. Encode data to and decode data from a Base64 string. Correct Answer: A QUESTION 13
You are developing a Windows Store app. You configure the app to allow a free trial period.
You need to prompt the user to purchase the full version of the app when the trial period expires.
What should you do?
A. Call the getAppReceiptAsync( ) method of the Windows.ApplicationModel.Store.CurrentApp object.
B. Call the getProductReceiptAsync( ) method of the Windows.ApplicationModel.Store.CurrentApp object and provide the app’s product ID as an argument.
C. Call the requestProductPurchaseAsync( ) method of the Windows.ApplicationModel.Store.CurrentApp object and provide the app’s product ID as an argument.
D. Call the requestAppPurchaseAsync( ) method of the Windows.ApplicationModel.Store.CurrentApp object.
Correct Answer: B QUESTION 14
You are developing a Windows Store app by using JavaScript. The app persists a list of stocks in the app’s settings. The stock list is identified by a key of
stockList.
The app must allow users to remove their stock lists from the app’s settings. The following function call removes the stockList setting:
deleteAppSetting(“stockList”) ;
You need to remove only stockList from the settings storage without disrupting other settings.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: D QUESTION 15
You are developing a Windows Store app by using JavaScript. The app will allow users to customize various features. The customizations will be persisted by
using the saveMySettings function.
You need to persist the customizations.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D Correct Answer: A QUESTION 16
You are developing a Windows Store app by using JavaScript. The app will be used in multiple geographic locations. The app implements character grouping.
You need to ensure that the app can access only the first character group.
Which code segment should you use?
A. var item = new Windows.Globalization.Collation.CharacterGroupings ( ) .getAt (1);
B. var item = new Windows.Globalization.Collation.CharacterGroupings( ) .lookup(“1”);
C. var item = new Windows.Globalization.Collation.CharacterGroupings( ) .first( );
D. var item = new Windows.Globalization.Collation.CharacterGrouping( ) .first;
Correct Answer: C QUESTION 17
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 once a day 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: C QUESTION 18
You are writing a Windows Store app by using JavaScript.
You need to authenticate a cloud server as a source for Windows Push Notification Services (WNS).
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Create a code-signing certificate.
B. Register the app with the Dashboard.
C. Create the HTTPS authentication request.
D. Obtain the identity values and credentials for the app.
Correct Answer: ABD QUESTION 19
You develop a Windows Store app that allows users to modify images by using filters and image- processing algorithms.
The app must meet the following requirements:
Use a web worker to initiate the image-processing algorithms on a separate thread.
Clean up the web worker after processing the algorithms.
You need to ensure that the web worker releases memory after processing the algorithms. What should you do?
A. From the calling page, call the postMessage() command with the terminate parameter.
B. From the calling page, call the postMessage() command with the clean parameter.
C. From the web worker, call the close() command.
D. From the calling page, call the postMessage() command with the close parameter. Correct Answer: C QUESTION 20
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. Synchronous calls
B. The Web Worker API
C. The Task.Run method
D. Windows Runtime Metadata (WinMD) components
Correct Answer: B QUESTION 21
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