Microsoft 70-518 Online Practice Questions and Exam Preparation

Microsoft 70-518 Online Questions & Answers

• Question 81:

  You are designing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4 and Microsoft SQL Server 2008.

  The application runs successfully on a local client computer by using your user account. You deploy the database of the application to the production server. You configure the application connection string to use the Windows Authentication

  mode.

  You deploy the application to several client computers that use other applications on the network. The client computers access different databases on the production server by using the Windows Authentication mode.

  Users report that the application is not working and that they receive a database connection exception.

  You need to identify the source of the problem.

  What is the source of the problem?

  A. The database is currently blocked due to locks.
  B. The users do not have the correct database permissions.
  C. The users do not have valid SQL Server 2008 database logins.
  D. The client computers are not configured to use the network.
  B. The users do not have the correct database permissions.

• Question 82:

  You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application.

  You need to recommend an approach for ensuring that the solution can support 5,000 concurrent users.

  What should you recommend?

  A. Buffer overflow testing
  B. Stress testing
  C. Component stress testing
  D. Integration testing
  B. Stress testing

• Question 83:

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

  You plan to implement control caching to improve the loading time of a control. It is not required to refresh the content of the control after the application loads. The application will be compiled by using the .NET 4 client profile.

  You need to ensure that the following requirements are met:

  The control is reusable in multiple forms.

  Data in the control is cached when the application is loaded.

  What should you do?

  A. In the Load event of the application window, add code to load the control. Save the control to an instance variable.
  B. In the Load event of the application window, add code to load the control. Save the control to the cache by using objects in the System.Web.Caching namespace.
  C. In the constructor of the application window, add code to load the control. Save the control to a static variable.
  D. In the constructor of the application window, add code to load the control. Save the control to the cache by using objects in the System.Web.Caching namespace.
  C. In the constructor of the application window, add code to load the control. Save the control to a static variable.

• Question 84:

  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 85:

  You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.

  The application consists of multiple data entry screens.

  You need to ensure that users can return to previous screens. You also need to ensure that users can view a history of screens,

  What should you do?

  A. Create buttons to allow a user to open a new window for the data entry screens.
  B. Create buttons to allow a user to open a new Window as an MDI child window for the data entry screens.
  C. Create hyperlinks to allow a user to move between data entry screens. Use the NavigationService class to manage navigation history.
  D. Create hyperlinks to allow a user to move between data entry screens. Use the NavigationProgressEventArgs class to manage navigation history.
  C. Create hyperlinks to allow a user to move between data entry screens. Use the NavigationService class to manage navigation history.

• Question 86:

  You are designing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010. The application will store data that includes a time and date stamp. The middle tier of the application is implemented by using Windows Communication Foundation (WCF). The middle tier connects to geographically separated database servers.

  You need to ensure that the application meets the following requirements; Data stored contains time and date information local to the database server. Data stored contains Universal Coordinated Time (UTC).

  Which class should you use?

  A. DateTime
  B. TimeZone
  C. DateTimeOffset
  D. TimeZonelnfo
  C. DateTimeOffset

• Question 87:

  You are designing a mission-critical Windows Presentation Foundation (WPF) application that uses .NET Framework 4.

  You need to recommend an approach for identifying repair and recovery time.

  What should you recommend?

  A. Test the failover technologies.
  B. Test for buffer overflows.
  C. Use component stress testing.
  D. Use integration stress testing.
  A. Test the failover technologies.

• Question 88:

  You are designing a Windows Presentation Foundation (WPF) application. The WPF application contains code that will be executed by both full trust callers and partial trust callers. The WPF application code does not have the

  AllowPartialTrustCallers attribute set.

  You have the following requirements:

  The application security settings must allow partial trust callers to create and write to a file.

  Users must have access only to files that they create and not to files created by other users.

  You need to recommend a location for storing each user's files.

  Which location should you recommend?

  A. the user's LocalSettings folder
  B. the user's My Documents folder
  C. the user's Roaming folder
  D. the user's IsolatedStorage folder
  D. the user's IsolatedStorage folder

• Question 89:

  You design a Windows Presentation Foundation (WPF) application that interacts with a Windows Communication Foundation (WCF) Web service. The WCF Web service throws exceptions of type Exception.

  The WPF application crashes when the WCF Web service throws an exception. You need to recommend an error-handling strategy that allows users to submit updated data to the WCF Web service without restarting the WPF application.

  What should you recommend?

  A. Modify the Web service to throw exceptions of type FaultException.
  B. Modify the Web service to throw custom exceptions derived from the Exception class.
  C. Modify the Web service to throw exceptions of type InvalidOperationException.
  D. Modify the Web service to throw custom exceptions derived from the ApplicationException class.
  A. Modify the Web service to throw exceptions of type FaultException.

• Question 90:

  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 Error Reporting to view the error information.
  C. Write error messages to the event logs on the local computers. Use Windows Management Instrumentation (WMI) to view the error information.
  D. Write error messages to the SQL Server databases. Synchronize the databases by using transactional replication.
  B. Write error messages to the event logs on the local computers. Use Windows Error Reporting to view the error information.