Prepare with Microsoft 70-516 exam torrent, pass for sure

You have been assigned the task of writing code that executes an Entity SQL query that returns entity type
objects that contain a property of a complex type.
(Line numbers are included for reference only.)
01 using (EntityCommand cmd = conn.CreateCommand())
02 {
03 cmd.CommandText = esqlQuery;
04 EntityParameter param = new EntityParameter();
05 param.ParameterName = "id";
06 param.Value = 3;
07 cmd.Parameters.Add(param);
08 using (EntityDataReader rdr = cmd.ExecuteReader
(CommandBehavior.SequentialAccess))
09 {
10 while (rdr.Read())
11 {
12 ...
13 Console.WriteLine("Email and Phone Info:");
14 for (int i = 0; i < nestedRecord.FieldCount; i++)
15 {
16 Console.WriteLine(" " + nestedRecord.GetName(i) + ": " +
nestedRecord.GetValue(i));
17 }
18 }
19 }
20 }
Which code segment should you insert at line 12?

• A. DbDataRecord nestedRecord = rdr["EmailPhoneComplexProperty"] as DbDataRecord;
• B. ComplexDataRecord nestedRecord = rdr["EmailPhoneComplexProperty"]
• C. DbDataRecord nestedRecord = rdr["EmailPhoneComplexProperty"]
• D. DataSet nestedRecord = rdr["EmailPhoneComplexProperty"] as ComplexDataSet

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database and contains a LINQ to SQL data model.
The data model contains a function named createCustomer that calls a stored procedure.
The stored procedure is also named createCustomer. The createCustomer function has the following
signature.
createCustomer (Guid customerID, String customerName, String address1)
The application contains the following code segment. (Line numbers are included for reference only.)
01 CustomDataContext context = new CustomDataContext(); 02 Guid userID = Guid.NewGuid();
03 String address1 = "1 Main Steet";
04 String name = "Marc";
05 ...
You need to use the createCustomer stored procedure to add a customer to the database. Which code segment should you insert at line 05?

• A. context.ExecuteCommand("createCustomer", customer); Customer customer = new Customer() { ID = userID, Address1 = address1, Name = customer1, };
• B. context.ExecuteQuery(typeof(Customer), "createCustomer", customer);
• C. context.ExecuteCommand("createCustomer", userID, customer1, address1); Customer customer = new Customer() { ID = userID, Address1 = address1, Name = customer1, };
• D. context.createCustomer(userID, customer1, address1);

The database contains orphaned Color records that are no longer connected to Part records.
You need to clean up the orphaned records. You have an existing ContosoEntities context object named
context.
Which code segment should you use?

• A. context.Colors.ToList().RemoveAll(c => !c.Parts.Any()); context.SaveChanges();
• B. var unusedColors = context.Colors.Where(c => !c.Parts.Any()).ToList(); foreach (var unused in unusedColors){
  context.DeleteObject(unused)
  }
  context.SaveChanges();
• C. context.Colors.TakeWhile(c => !c.Parts.Any()); context.SaveChanges();
• D. var unusedColors = context.Colors.Where(c => !c.Parts.Any()); context.DeleteObject(unusedColors); context.SaveChanges();

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database. The application uses DataContexts to query
the database.
The application meets the following requirements:
-Stores customer data offline.
-Allows users to update customer records while they are disconnected from the server.
-Enables offline changes to be submitted back to the SQL Server by using the DataContext object.
You need to ensure that the application can detect all conflicts that occur between the offline customer information submitted to the SQL Server and the server version. You also need to ensure that you can roll back local changes. What should you do?

• A. Add a try/catch statement around calls to the SubmitChanges method of the DataContext object and catch SqlExceptions.
• B. Call the SubmitChanges method of the DataContext object. Pass System.Data.Linq.ConflictMode.ContinueOnConflict to the method.
• C. Add a try/catch statement around calls to the SubmitChanges method of the DataContext object and catch ChangeConflictExceptions.
• D. Override the Update operation of the DataContext object. Call the ExecuteDynamicUpdate method to generate the update SQL.

You use Microsoft .NET Framework 4.0 to develop an application that uses LINQ to SQL.
The Product entity in the LINQ to SQL model contains a field named Productlmage. The Productlmage field
holds a large amount of binary data.
You need to ensure that the Productlmage field is retrieved from the database only when it is needed by the
application. What should you do?

• A. When the context is initialized, specify that the Productlmage property should not be retrieved by using DataLoadOptions
• B. Set the Update Check property on the Productlmage property of the Product entity to Never.
• C. Set the Auto-Sync property on the Productlmage property of the Product entity to Never.
• D. Set the Delay Loaded property on the Productlmage property of the Product entity to True.