Latest Microsoft 070-518 Actual Free Exam Questions & Community Discussion, Page 4

Question #28

You are designing an update to an existing Windows Presentation Foundation (WPF) application. You plan to use Microsoft Visual Studio 2010. The updated WPF application will require a specific version of a third-party component.
You have the following requirements:
- Deploy the update by using Windows Installer. - Update the WPF application only if the required version of the third-party component is present on the client computer.
You need to recommend configuration settings for the application installer.
Which property should you recommend be set?

A. The Condition property of a new Launch Condition

B. TheRemovePreviousVersions property of the Setup Project

C. The Version property of the .NET Launch Condition

D. The Version property of the Setup Project

Discussion 0

Correct Answer: A Vote an answer

Question #29

You are updating a Windows desktop client application that was created by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application displays data derived from several database queries. The display takes a long time to update.
The application currently uses a BackgroundWorker thread and a Parallel.ForEach statement on that thread.
Users have requested a modification to the program that would allow them to interrupt the display of data and begin processing a new and different query.
You decide to provide a new Stop button on the user interface (UI) to allow the user to terminate the current data display and initiate the new query. The main UI thread must be notified when the current data processing is terminated so that the new query can be started.
You need to implement the Stop button event handler.
What should you do?

A. Use the DoWork handler of the worker thread and test a shared status value.
Use a break statement to terminate the Parallel.ForEach loop.

B. Use the DoWork handler of the worker thread and test a shared status value.
Use the Thread.Abort() statement to terminate the worker thread. Start a new BackgroundWorker thread from the main UI thread.

C. Use the DoWork handler of the worker thread and test a shared status value.
Use a loopStatus.Stop() statement to terminate the Parallel.ForEach loop.

D. Use a CancelAsync() function to cancel the worker thread.
In the Parallel.ForEach loop, test the CancellationPending property.
If the property is set to true, perform the following tasks:
Write a loopStatus.Stop() statement.
Set the DoWorkEventArgs.Cancel property to true.
Use a return statement to exit from the loop.

Discussion 0

Correct Answer: D Vote an answer

Question #30

An existing Windows application uses a Windows Communication Foundation (WCF) Web service that is available only to employees.
You have the following requirements:
---
Make the WCF Web service available to business partners.
Enable business partners to send a profile token.
Ensure that the currently deployed application continues to function.
You need to recommend a solution that meets the requirements.
What should you recommend?

A. Modify the WCF Web service operations to accept the profile token as an additional parameter.

B. Use SOAP headers to pass the profile token to the service operations.

C. Implement the WCF Web service as a REST service.

D. Convert the WCF Web service to a Duplex service that implements a callback to accept the profile token.

Discussion 0

Correct Answer: B Vote an answer

Question #31

You are designing a Windows Presentation Foundation (WPF) client application from which
employees will access a Web service.
Business partners will access the Web service by using proprietary client applications.
You need to recommend a solution for ensuring the integrity of data in the system.
What should you recommend?

A. Implement data validation at the service layer and reject invalid datA.

B. Implement data validation on the client and reject invalid datA.

C. Secure the Web service by using SSL.

D. Encrypt data while storing it in the database.

Discussion 0

Correct Answer: A Vote an answer

Question #32

---
You are designing a distributed application that will be deployed to 5,000 users worldwide. Servers on five continents will host the Web services and the Microsoft SQL Server 2008 databases that support the application.
You have the following requirements:
Collect information about all errors associated with the application.
Store and view all error information in a centralized location.
Minimize the network bandwidth required for the transfer of error information.
You need to recommend a strategy for reporting error information.
Which strategy should you recommend?

A. Write error messages to the SQL Server databases. Synchronize the databases by using merge replication.

B. Write error messages to the event logs on the local computers. Use Windows Management Instrumentation (WMI) to view the error information.

C. Write error messages to the event logs on the local computers. Use Windows Error Reporting to view the error information.

D. Write error messages to the SQL Server databases. Synchronize the databases by using transactional replication.

Discussion 0

Correct Answer: A Vote an answer

Question #33

You are designing a Windows application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The business logic layer of the application is implemented by using Windows Communication Foundation (WCF).
You create a duplex bidirectional WCF service that contains a single operation. The service operation sends the result back to the client application by using a two-way callback operation.
You plan to design a service interaction strategy.
You need to ensure that deadlocks are prevented.
What should you do?

A. Configure the ServiceBehaviorAttribute attribute to use the Reentrant or Multiple concurrency mode in the service class.

B. Configure the CallbackBehaviorAttribute attribute to use the Synchronization context in the callback class.

C. Configure the CallbackBehaviorAttribute attribute to use the Reentrant or Multiple
concurrency mode in the callback class.

D. Configure the ServiceBehaviorAttribute attribute to use the Synchronization context in the service class.

Discussion 0

Correct Answer: A Vote an answer

Question #34

You are developing an application by using Microsoft .NET Framework 4.
The application will be used by all employees of your company. Local file stores on the computers are secure and inaccessible remotely.
You need to design a remote monitoring strategy to monitor the usage time of the application by each user.
What should you do?

A. Use the System.Management.Instrumentation namespace to issue event queries against methods that pass ProgressEvent and StoppedEvent arguments. Publish the events to the Event Log.

B. Create a TraceLog object by using the System.Diagnostics element in the application configuration file. Add the TraceSource element for startup, shutdown, and user idle time events.

C. Create a TraceLog object and the Trace object by using the System.Diagnostics element to trace startup, shutdown, and user idle time events throughout the application.

D. Use the System.Management.Instrumentation namespace to publish startup, shutdown, and user idle time events of the application. Publish the events to Microsoft Operations Manager.

Discussion 0

Correct Answer: C Vote an answer

Question #35

You are designing a new feature for an existing Windows Forms application by using Microsoft .NET Framework 4.
The application contains multiple forms that are loaded into a parent Multiple Document Interface (MDI) form. Your company policy does not allow the use of third-party controls.
You need to ensure that the new feature meets the following requirements:
- It provides a three-dimensional scale model.
- It allows users to change the colors of the model and communicates the color
selections back to the application.
- It allows the model to scale, based on the user's client computer display resolution.
- It is a child form in the MDI application.
What should you do?

A. Design the new feature by using a Windows Presentation Foundation (WPF) user control.
Use the ElementHost class to host the WPF user control in the existing Windows Forms application.

B. Design the new feature in a new Windows Presentation Foundation (WPF) application.
Host the existing application inside the new WPF application by using the WindowsFormsHost class.

C. Design the new feature in the existing Windows Forms application as a Windows form.
Add the form as a child form to the MDI window.

D. Design the new feature in a new application by using Windows Presentation Foundation (WPF).
Invoke the new WPF application from the existing Windows Forms application.

Discussion 0

Correct Answer: A Vote an answer

Question #36

You are designing an application by using Windows Presentation Foundation (WPF), Microsoft .NET Framework 4, and Microsoft SQL Server 2008.
The application will contain several forms that include custom data validators.
You need to ensure that data is validated before the database updates occur. You also need to ensure that the validation logic can be reused.
How should you design the validation?

A. Subscribe to the TextChanged event for all user interface (UI) components of the application.
Perform data validation in the event handler and alert users when a data entry error occurs.

B. Implement the INotifyPropertyChanged interface in the data class of the application.

C. Implement the IDataErrorlnfo interface in the data class of the application.

D. Subscribe to the MouseLeave event for all user interface (UI) components of the application.
Perform data validation in the event handler and alert users when a data entry error occurs.

Discussion 0

Correct Answer: C Vote an answer

Microsoft 070-518 Actual Free Exam Questions & Community Discussion

Download Free Microsoft 070-518 Demo