You have a DataSet object that contains a single DataTable object named Employees. Employees has a column named EmployeelD. EmployeelD contains no duplicate dat

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• 1You are creating an XML Web service that processes highly confidential messages. The service exposed a Web method named Retri- eveMessage that takes as input a code name and returns an encrypted message.You create a SOAP extension and override the extension's Process Message method so that you can encrypt the message before it is sent back to the caller.You need to encrypt only the data within the RetrieveMessageResult node of the SOAP response. You create a function named EncryptMessage that encrypts the RetrieveMessageResult node. You need to ensure that this method gets called before sending the message back to the caller.During which SoapMessageStage should you call EncryptMessage?

  A.BeforeSerialize

  B.AfterSerializeC . BeforeDeserializeD. AfterDeserialize

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• 2Your Microsoft SQL Server database contains a table named Customers . Customers contains three columns named FamilyName, PersonalName, and Address.You instantiate a SqlCommand object named CRCommand that you will use to populate a DataReader object named customers Data Reader. You need to initialize CRCommand to load customersDataReader to include FamilyName and PersonalName for all rows in Customers.Which code segment should you use?

  A.CRCommand.CommandText = "SELECT FamilyName, "PersonalName FROM Customers"

  B.CRCommand.CommandType = "SELECT FamilyName,"Personal Name FROM Customers")C . CRCommand.Parameters.Add("SELECT FamilyName, "Personal Name FROM Customers")D. CRCommand.ExecuteNonOuery()

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• 3You have a strongly types DataSet object. This object contains three DataTable objects named Customers, Orders and OrderDetails.Customers and Orders have a data column named CustomerlD. Orders and OrderDetails have a data column named OrderlD.Orders have a foreign key constraint between Customers and Orders on CustomerlD. OrderDetails has a foreign key constraint between Orders and OrderDetails on OrderlD.You want to populate Customers, Orders and OrderDetails with data from Microsoft SQL Server database.In which order should you fill the Data table objects?

  A.Customers, OrderDetails, Orders

  B.OrderDetails, Orders, Customers C . Customers, Orders, OrderDetails D. Orders, OrderDetails, Customers

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• 4You have a .NET Remoting object named ProductLoader. The Product- Loader class is a server-activated Singleton object.The ProductLoader class loads product data into a Microsoft SQL Server database. The Load method of the ProductLoader class is a time-consuming method to call.You are developing a client application that uses the ProductLoader class. You want to ensure that the client application can continue to respond to user input while the Load method of the ProductLoader class is called.What should you do?

  A.Use an AsyncDelegate instance to call the Load method

  B.Modify the ProductLoader class to be derived from IAsyncResult

  C.Configure the ProductLoader class to be a client-activated .NET Remoting object

  D.Configure the client application to have its own remoting channel that matches the server's channel and formatter

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• 5You are developing a order-processing application that retrieves data from a Microsoft SQL Server database named Datal that contains a table named Customers and a table named Orders.Customer has a primary key of customerID. Each row in orders has a CustomerlD that indicates which customer placed the order.Your application uses a DataSet object named ordersDataSet to capture customer and order information before it applied to the database. The ordersDataSet object has two Data Table objects named Customers and Orders.You want to ensure that a row cannot exist in the Orders Data Table object without a matching row existing in the Customers Data Table object.Which two actions should you take? (Each correct answer presents part of the solution. Choose two)

  A.Create a foreign key constraint named constraintOrders that has Orders.CustomersID as the parent column and Customers. CustomerlD as the child column

  B.Create a foreign key constraint named ConstraintCustomers that has Customers.CustomerlD as the parent column and Orders.CustomerlD as the child column

  C.Create a unique constraint named uniqueCustomers by using theCustomers.CustomerlD

  D.Add ConstraintOrders tothe Orders Data Table

  E.Add ConstraintOrders tothe Customer Data Table

  G.Add ConstraintCustomers to the Customers Data Table

  H.Add UniqueCustomers to the Customers Data Table

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• 6You develop an ASP.NET application that consumes a third-party XML Web service named CreditService . CreditService contains a Web method named ChargeCard. ChargeCard takes as input a credit card number, a billing address, and a monetary amount and returns a Boolean variable that indicates whether or not the card was changed.Calls to ChargeCard take one minute to complete. You do not want users to have to wait while ChargeCard executes. You want users to be taken automatically to the next Web page of the application.Which code segment should you use to call CreditService?

  A.CreditService.ChargeCard(ccNumb, billAddress, amount)Server.Transfer ("process.aspx")

  B.CreditService.ChargeCard(ccNumb,_ billAddress, amount)Response.Redirect("process.aspx")

  C.CreditService.BeginChargeCard(ccNumb, billAddress, amount, New AsyncCallback(AddressOf_CCResponse), Nothing)Server.Transfer("process.aspx")Private Sub CCResponse(aRes As IAsyncResult) CreditService.EndChargeCard(aRes)End Sub

  D.Dim AsyncResult As IAsyncResultAsyncResult = CreditServic

  E.BeginChargeCard(ccNumb,_ billAddress, amount, Nothing, Nothing)AsyncResult.AsyncWaitHandle.WaitOne()CreditService.EndChargeCard(AsyncResult)Server.Transfer ("process.aspx")

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• 7You have a DataSet object named customersDataSet that contains a DataTable object named Customers. Customers retrieves information from a Microsoft SOL Server database. Customers contains a column named Region.You want to create a DataView object named customersDataView that contains only customers in which the value in the Region column is France.Which code segment should you use?

  A.Dim customersDataView As _New DataView(customersDataSet.Tables("Customers")) customersDataView.FindRows("Region = France")

  B.Dim customersDataView As _New DataView(customersDataSet.Tables("Customers")) customersDataView.FindRows("Region = ’France1”）

  C.Dim customersDataView As _New DataView(customersDataSet.Tables("Customers")) customersDataView.RowFilter = ("Region = Franc")

  D.Dim customersDataView As _New DataView(customersDataSet.Tables("Customers")) customersDataView .RowFilter = ("Region = 'France1，'）

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• 8Your Microsoft SQL Server database BackOrders contains a table that consists of more than 1 million rows. You need to develop an application that reads each row in the table and writes the data to a flat file. The application will run only once each day.You want the application to process the data as quickly as possible.Which class should you use to retrieve the data?

  A.DataSet

  B.DataTable

  C.DataReader

  D.DataAdapter

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• 9Your Microsoft SQL Server database has a stored procedure named GetCompanyName which accepts one parameter named @CustomerID and returns the appropriate company name.You instantiate a SqlCommand object named STCommand. You need to initialize STCommand to return the company name for @CustomerID with a value of "ALFKI".Which code segment should you use?

  A.STCommand.CommandText = "GetCompanyName, ALFKI") STCommand.Parameters.Add("@CustomerID")

  B.STCommand.CommandText = "GetCompanyName"STCommand.Parameters.Add("GetCompanyName", "ALFKI")C . STCommand.CommandText = "@CustomerID"STCommand.Parameters.Add("GetCompanyName", "ALFKI")D. STCommand.CommandText = "GetCompanyName"STCommand.Parameters.Add("@CustomerID", "ALFKI”）

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• 10You are creating an XML Web service that will be accessed by callers who cannot use SSL encryption because if firewall restrictions. To protect sensitive data, you want to encrypt a portion of the data returned from the service by using objects in the Cryptography namespace.The service will use a standard encryption routine to encrypt the data before it is sent to the caller. The caller will decrypt the data by using instructions provided by you.You need to write code to encrypt the sensitive data that is in a local variable named myDat

  A.First, you create an instance of a Cryptography Service Provider.What should you do next?A.Create an Encryptor object that passes in a key and an initialization vector (IV) as parameters . Call the GetHashCode method of the Encryptor object to generate a new hash code. Convert the generated hash code to a stream and use the CryptoStream object to write the value of the hash code to an encrypted stream. Convert the output stream to a string

  B.Create a UnicodeEncoding object and use it to encode the valueof myData into a byte array. Use the ComputeHash method of the Cryptography Service Provider to create a hash from the encoded byte array. Convert the output of Compute Hash from a byte array to a string

  C.Create a UnicodeEncoding object and use it to encode the value of myData into a byte array. Use the GetHashCode method of the Cryptography Service Provider to create a hash from the encoded byte array. Convert the output of GetHashCode from a byte array to a string

  D.Create an Encryptor object that passes in a key and an initialization vector(IV) as parameters. Create a Cryp- toStream object that passes in an output stream and the Encryptor object as parameters. Convert myData to a stream and use the CryptoStream object to write the value of myData to an encrypted stream. Convert the output stream to a string

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