You work as the developer in an IT company. Recently your company has a big customer. The customer runs a large supermarket chain. You're appointed to provide technical support for the customer. Now according to the customer requirement, you are creating an application. Custom authentication and role-based security will be used by the application. In order to make the runtime assign an unauthenticated principal object to each running thread, you have to write a code segment. In the options below, which code segment should you use?

• A. AppDomain domain = AppDomain.CurrentDomain;domain.SetPrincipalPolicy( PrincipalPolicy.UnauthenticatedPrincipal);
• B. AppDomain domain = AppDomain.CurrentDomain; domain.SetAppDomainPolicy( PolicyLevel.CreateAppDomainLevel());
• C. AppDomain domain = AppDomain.CurrentDomain;domain.SetThreadPrincipal(new WindowsPrincipal(null));
• D. AppDomain domain = AppDomain.CurrentDomain;domain.SetPrincipalPolicy(PrincipalPolicy.WindowsPrincipal);

You have just graduated from college, now you are serving the internship as the software developer in an international company. Now you are transferring records from one database to another. You are not sure whether you can transfer the records by using the SqlBulkCopy class. You have to identify this. So what should you do?

• A. You must make sure that the source database is Microsoft SQL Server.
• B. You must make sure that the column names in the source table match the column names in the destination table.
• C. You must make sure that the destination database is Microsoft SQL Server.
• D. You must make sure that the bulk copy program (bcp) utility is installed on the destination server.

You have just graduated from college,now you are serving the internship as the software developer in an international company. According to the requirements of the company CIO, you're developing a server. The application will transmit sensitive information on a network. You create two objects, one is an X509Certificate object named certificate, the other is a TcpClient object named client. Now you have to use the Transport Layer Security 1.0 protocol to create an SslStream to communicate. In the options below, which code segment should you use?

• A. Dim objSSL As New SslStream(client.GetStream)objSSL.AuthenticateAsServer(certificate, False, _ SslProtocols.None, True)
• B. Dim objSSL As New SslStream(client.GetStream)objSSL.AuthenticateAsServer(certificate, False, _
  SslProtocols.Ssl2, True)
• C. Dim objSSL As New SslStream(client.GetStream)objSSL.AuthenticateAsServer(certificate, False, _ SslProtocols.Tls, True)
• D. Dim objSSL As New SslStream(client.GetStream)objSSL.AuthenticateAsServer(certificate, False, _ SslProtocols.Ssl3, True)

You have just graduated from college, now you are serving the internship as the software developer in an international company. According to the requirements of the company CIO, you create a Web Form which calls a method as part of its processing. It takes a long time for the method to process. Besides this, you notice that the other Web Forms in the ASP.NET Web site are now processing slowly. You have to execute the long running method in parallel to other requests to reduce the page response times. So what should you do?

• A. You have to call the method within the PreInit and PreRenderComplete page events.
• B. You have to set the CompilationMode attribute to Always inside the page directive of the Web Form that calls the method.
• C. You have to call the method by using the BeginGetAysncData and EndGetAsyncData delegates.
• D. You have to set the Async attribute to True inside the page directive of the Web Form that calls the method.