You need to implement the audit log
###BeginCaseStudy###
Case Study: 2
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.
###EndCaseStudy###
You need to implement the audit log.
What should you do?
Which code segment should you use?
You are developing an application for a bank. The application includes a method named
ProcessLoan that processes loan applications. The ProcessLoan() method uses a method
named CalculateInterest. The application includes the following code:
You need to declare a delegate to support the ProcessLoan() method.
Which code segment should you use?
Which code segment should you insert at line L036?
###BeginCaseStudy###
Case Study: 2
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.
###EndCaseStudy###
You need to enable the user to save coordinates as specified in the requirements.
Which code segment should you insert at line L036?
Which two actions should you perform?
You are modifying an application that processes loans. The following code defines the Loan
class. (Line numbers are included for reference only.)
Loans are restricted to a maximum term of 10 years. The application must send a notification
message if a loan request exceeds 10 years.
You need to implement the notification mechanism.
Which two actions should you perform? (Each correct answer presents part of the solution.
Choose two.)
Which code segment should you insert at line PL27?
###BeginCaseStudy###
Case Study: 2
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.
###EndCaseStudy###
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?
Which code segment should you insert at line 14?
An application contains code that measures reaction times. The code runs the timer on a
thread separate from the user interface. The application includes the following code. (Line
numbers are included for reference only.)
You need to ensure that the application cancels the timer when the user presses the Enter key.
Which code segment should you insert at line 14?
Which property should you check in the app startup code?
###BeginCaseStudy###
Case Study: 2
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.
###EndCaseStudy###
You need to find out whether the app is still in trial mode.
Which property should you check in the app startup code?
Which two code segments can you insert at line 05 to achieve this goal?
You are developing an application that generates code. The application includes the
following code segment. (Line numbers are included for reference only.)
You need to ensure that code generated by the GenerateCode() method represents a class
that can be accessed by all objects in its application domain.
Which two code segments can you insert at line 05 to achieve this goal? (Each correct
answer presents a complete solution. Choose two.)
Which code segment should you insert in the default.js file?
###BeginCaseStudy###
Case Study: 2
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.
###EndCaseStudy###
You need to find out whether the user has purchased the app.
Which code segment should you insert in the default.js file?
Which class should you use?
You are developing an application that will process personnel records.
The application must encrypt highly sensitive data.
You need to ensure that the application uses the strongest available encryption.
Which class should you use?