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QUESTION 201
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. You load records from the Customers table into a DataSet object named dataset. You need to retrieve the value of the City field from the first and last records in the Customers table. Which code segment should you use?

A.    DataTable dt = dataset.Tables[“Customers”];
string first = dt.Rows[0][“City”].ToString();
string last = dt.Rows[dt.Rows.Count – 1][“City”].ToString();
B.    DataTable dt = dataset.Tables[“Customers”];
string first = dt.Rows[0][“City”].ToString();
string last = dt.Rows[dt.Rows.Count][“City”].ToString();
C.    DataRelation relationFirst = dataset.Relations[0];
DataRelation relationLast = dataset.Relations[dataset.Relations.Count – 1];
string first = relationFirst.childTable.Columns[“City”].ToString();
string last = relationLast.childTable.Columns[“City”].ToString()
D.    DataRelation relationFirst = dataset.Relations[0];
DataRelation relationLast = dataset.Relations[dataset.Relations.Count];
string first = relationFirst.childTable.Columns[“City”].ToString();
string last = relationLast.childTable.Columns[“City”].ToString();

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QUESTION 181
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. You use Entity SQL of the ADO.NET Entity Framework to retrieve data from the database. You need to define a custom function in the conceptual model. You also need to ensure that the function calculates a value based on properties of the object. Which two XML element types should you use? (Each correct answer presents part of the solution. Choose two.)

A.    Function
B.    FunctionImport
C.    Dependent
D.    Association
E.    DefiningExpression

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QUESTION 161
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.    var unusedColors = context.Colors.
Where(c => !c.Parts.Any()).ToList();
foreach (var unused in unusedColors){
  context.DeleteObject(unused)
}
context.SaveChanges();
B.    context.Colors.TakeWhile(c => !c.Parts.Any());
context.SaveChanges();
C.    context.Colors.ToList().RemoveAll(c => !c.Parts.Any());
context.SaveChanges();
D.    var unusedColors = context.Colors.Where(c => !c.Parts.Any());
context.DeleteObject(unusedColors);
context.SaveChanges();

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QUESTION 141
You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. The application connects to a Microsoft SQL Server 2008 database. The application uses a Microsoft ADO.NET SQL Server managed provider. When a connection fails, the application logs connection information, including the full connection string. The information is stored as plain text in a .config file. You need to ensure that the database credentials are secure. Which connection string should you add to the .config file?

A.    Data Source=myServerAddress; Initial Catalog=myDataBase; Integrated Security=SSPI;
Persist Security Info=false;
B.    Data Source=myServerAddress; Initial Catalog=myDataBase; Integrated Security=SSPI;
Persist Security Info=true;
C.    Data Source=myServerAddress; Initial Catalog=myDataBase; User Id=myUsername;
Password=myPassword; Persist Security Info=false;
D.    Data Source=myServerAddress; Initial Catalog=myDataBase; User Id=myUsername;
Password=myPassword; Persist Security Info=true;