Microsoft 70-518 Online Practice Questions and Exam Preparation

Microsoft 70-518 Online Questions & Answers

• Question 41:

  You are designing a Windows Presentation Foundation (WPF) application.

  The WPF application must always display real-time status information while the user is working in the WPF application.

  You need to recommend a container for displaying the status information.

  Which container should you recommend?

  A. a modeless window
  B. a console window
  C. a message box
  D. a modal window
  A. a modeless window

• Question 42:

  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 CallbackBehaviorAttribute attribute to use the Synchronization context in the callback class,
  B. Configure the ServiceBehaviorAttribute attribute to use the Synchronization context in the service 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 Reentrant or Multiple concurrency mode in the service class.
  D. Configure the ServiceBehaviorAttribute attribute to use the Reentrant or Multiple concurrency mode in the service class.

• Question 43:

  You are designing a Windows Presentation Foundation (WPF) application. The application data files have the file name extension.abc.

  The WPF application installer must meet the following requirements:

  Add a shortcut to the desktop.

  Install infrequently used assemblies on demand.

  Associate the .abc file name extension with the WPF application.

  Roll back the installation in the event of a failure.

  You need to recommend a deployment method. What should you recommend?

  A. ClickOnce
  B. XCopy
  C. Background Intelligent Transfer Service (BITS)
  D. Windows Installer
  A. ClickOnce

• Question 44:

  You are designing an application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.

  The application will be used by a sales team to enter sales orders and update customer information.

  You need to ensure that the application meets the following requirements: Allows users to enter sales orders while their computers are disconnected from the network Uploads sales orders to the server database when connected to the network Compiles against the .NET Framework 4 client profile

  What should you use?

  A. XML files
  B. WCF services
  C. Microsoft Sync Framework
  D. the System.Web.Caching namespace classes
  C. Microsoft Sync Framework

• Question 45:

  You have developed a Windows Forms server application by using Microsoft .NET Framework 4.

  Client applications connect to the server application to receive streaming media on demand on a single server. Each incoming connection is launched on a separate thread.

  As the number of client applications increases, users report that connection attempts intermittently fail.

  You need to ensure that users can connect to the server application even when the number of client applications increases.

  What should you do?

  A. Add additional RAM to the server. Increase the size of the thread pool.
  B. Add additional RAM to the server. Decrease the size of the thread pool.
  C. Install a network load balancer. Increase the size of the connection pool.
  D. Install a network load balancer. Decrease the size of the connection pool.
  A. Add additional RAM to the server. Increase the size of the thread pool.

• Question 46:

  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. Convert the WCF Web service to a Duplex service that implements a callback to accept the profile token.
  B. Use SOAP headers to pass the profile token to the service operations.
  C. Modify the WCF Web service operations to accept the profile token as an additional parameter.
  D. Implement the WCF Web service as a REST service.
  B. Use SOAP headers to pass the profile token to the service operations.

• Question 47:

  You are creating 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 WCF service that contains a single operation to upload large binary data files. You configure the binding of the WCF service to enable data streaming.

  You need to ensure that the WCF service operation receives binary data files along with a string parameter that contains the description of each file.

  You create a service operation that receives a single parameter, what should you do next?

  A. Implement the service parameter as a Serializable class that contains a property for the description of the file and another property for the content of the data file
  B. Implement the service parameter as a DataContract class that contains a DataMember property for the description of the file and another DataMember property for the content of the data file.
  C. Implement the service parameter as a MessageContract class that contains a MessageHeader property for the description of the file and a MessageBodyMember property for the content of the data file.
  D. Implement the service parameter as a MessageContract class that contains a MessageBodyMember property for the description of the file and another MessageBodyMember property for the content of the data file.
  C. Implement the service parameter as a MessageContract class that contains a MessageHeader property for the description of the file and a MessageBodyMember property for the content of the data file.

• Question 48:

  You are designing a Windows client application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.

  The application will read and write data that is stored in a mainframe application.

  A hardware device that is located between the application and the mainframe removes all XML- formatted messages.

  You need to ensure that the application can request and receive data from the mainframe application.

  What should you create?

  A. a RSS-based WCF service
  B. a REST-based WCF service
  C. a .NET Remoting service that uses the SOAP formatter
  D. a .NET Web Service that uses the wsHttpBinding binding
  B. a REST-based WCF service

• Question 49:

  You are designing a Windows Presentation Foundation (WPF) application.

  The application calls methods that perform long-running computational tasks.

  You need to recommend an approach for ensuring that the application remains responsive while the tasks are executing.

  What are two possible ways to achieve this goal? (Each correct answer presents a complete solution.Choose two.)

  A. Use synchronous method calls from a thread other than the thread on which the user interface runs.
  B. Run the user interface from a new multi-threaded apartment (MTA) thread.
  C. Use synchronous method calls from the user interface thread.
  D. Use asynchronous method calls from the user interface thread.
  A. Use synchronous method calls from a thread other than the thread on which the user interface runs.
  D. Use asynchronous method calls from the user interface thread.

• Question 50:

  You are designing a .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application. The WPF application connects to a Microsoft SQL Server 2008 database. You plan to deploy the WPF application to millions of client computers. The SQL Server database will be hosted in a data center.

  The WPF application will query the database to provide type-ahead assistance as users enter data. The WPF application will send a query after each character is entered. Each query will access multiple joined tables. You need to recommend an approach for maximizing scalability of the solution.

  What should you recommend?

  A. Denormalize the data to fewer tables.
  B. Create stored procedures to abstract the tables.
  C. Use System.Runtime.Caching to cache query results on the client.
  D. Create a separate data layer with caching.
  D. Create a separate data layer with caching.