Microsoft 70-518 Online Practice Questions and Exam Preparation

Microsoft 70-518 Online Questions & Answers

• Question 141:

  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 142:

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

  You need to maintain a common appearance and behavior across all applications in your company. You also need to ensure that the look and feel of the applications can be modified without recompiling them.

  What should you create?

  A. a merged resource dictionary
  B. user controls in a shared assembly
  C. an instance of the System.Windows.Media.StyleSimulations class
  D. custom controls in a shared assembly
  A. a merged resource dictionary

• Question 143:

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

  You have the following requirements:

  Run client-side validation tests on a large result set from a Microsoft SQL Server 2008 database.

  Validate each row of data without storing the entire result set in memory.

  You need to recommend a data access technology.

  What should you recommend?

  A. ADO.NET using SqlDataReader objects
  B. LINQ to SQL using the ElementAt() method
  C. ADO.NET using SqlDataAdapter objects and DataSet objects
  D. LINQ to Entities using the ElementAt() method
  A. ADO.NET using SqlDataReader objects

• Question 144:

  You are designing a multi-tenant Windows Presentation Foundation (WPF) application that will connect to a Microsoft SQL Server 2008 database. The WPF application will change the structure of database tables and views at runtime based

  on the tenant's configuration.

  The WPF application must meet the following requirements:

  Keep each tenant's data separate.

  Allow changes to the structure of the tables and views for each tenant without interfering with other tenants' data.

  You need to recommend an approach for managing the database structure.

  What should you recommend?

  A. Create a Partition Scheme for each tenant.
  B. Create an Application Role for each tenant.
  C. Create a Schema for each tenant.
  D. Create a Synonym for each tenant.
  C. Create a Schema for each tenant.

• Question 145:

  You are designing a Windows Forms application. The application connects to a Microsoft SQL Server 2008 database.

  You need to recommend an approach for retrieving and logging all informational messages and error messages reported by the database.

  What should you recommend?

  A. Retrieve informational messages in a SqlException object. Retrieve error messages by creating a handler for the InfoMessage event.
  B. Retrieve informational messages and error messages in a SqlException object.
  C. Retrieve informational messages by creating a handler for the InfoMessage event. Retrieve error messages in a SqlException object.
  D. Retrieve informational messages and error messages by creating a handler for the InfoMessage event.
  C. Retrieve informational messages by creating a handler for the InfoMessage event. Retrieve error messages in a SqlException object.

• Question 146:

  You are developing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.

  The application contains a grid that displays customer data stored in a database table. Users report that the grid takes a long time to display.

  You plan to implement data caching to improve loading time for the grid.

  You need to ensure that the cached data expires when the customer data is updated.

  What should you do?

  A. Use the System.Web.Caching.CacheDependency class.
  B. Use the System.Runtime.Caching.SqlChangeMonitor class.
  C. Use the ADO.NET Entity Framework.
  D. Use a static variable to store the Grid object.
  A. Use the System.Web.Caching.CacheDependency class.

• Question 147:

  You are designing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.

  The application will consist of a user interface (UI) tier and a middle tier. The middle tier will be implemented by using Windows Communication Foundation (WCF).

  You plan to design the exception handling strategy for the application.

  Each method in the middle tier will contain the following catch block.

  Catch e As ArgumentNullException

  Throw e

  When testing the application, you discover that all ArgumentNullExceptions that occur in the middle tier do not contain accurate stack trace information.

  What should you do?

  A. Create an ArgumentNullException handler in the UI tier.
  B. Use a DispatcherUnhandledExceptionEvent handler in the UI tier.
  C. Use a DispatcherUnhandledExceptionEvent handler in the middle tier.
  D. Remove the exception parameter from the ArgumentNullException handler.
  D. Remove the exception parameter from the ArgumentNullException handler.

• Question 148:

  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 149:

  You are designing a Windows Presentation Foundation (WPF) application for your company by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.

  The business layer of the application is implemented by using Windows Communication Foundation (WCF).

  You plan to support non-repudiation and data integrity for WCF messages.

  You need to design the security strategy for the application.

  What should you do?

  A. Attach a digital signature to the WCF messages.
  B. Encrypt the WCF messages by using the Secure Sockets Layer (SSL) protocol.
  C. Encrypt the WCF messages by using the Internet Protocol Security (IPSec) protocol.
  D. Implement message-level security by using digital certificates as client computer credentials.
  A. Attach a digital signature to the WCF messages.

• Question 150:

  You are designing a Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The WPF application will be deployed to 5,000 users worldwide. You need to recommend an approach for identifying problems that users will experience.

  Which testing methodology should you recommend?

  A. Acceptance testing
  B. Integration testing
  C. Functional testing
  D. Usability testing
  A. Acceptance testing