Microsoft 70-516

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Microsoft TS: Accessing Data with Microsoft .NET Framework 4 Sample Questions:

1. You use Microsoft .NET Framework 4.0 to develop an application that connects to a Microsoft SQL Server
2008 database.
You need to ensure that the application connects to the database server by using SQL Server
authentication.
Which connection string should you use?

A) SERVER=MyServer; DATABASE=AdventureWorks; Integrated Security=SSPI; UID=sa; PWD=secret;
B) SERVER=MyServer; DATABASE=AdventureWorks; Trusted Connection=true;
C) SERVER=MyServer; DATABASE=AdventureWorks; UID=sa; PWD=secret;
D) SERVER=MyServer; DATABASE=AdventureWorks; Integrated Security=false;

2. You need to write a LINQ query that can be used against a ContosoEntities context object named context to
find all
parts that have a duplicate name. Which of the following queries should you use?
(Each correct answer presents a complete solution. Choose two).

A) context.Parts.GroupBy(p => p.Name).Where(g => g.Count() > 1).SelectMany(x => x);
B) context.Parts.Where(p => context.Parts.Any(q => q.Name == p.Name && p.Id != q.Id);
C) context.Parts.SelectMany(p => context.Parts.Select(q => p.Name == q.Name && p.Id != q.Id));
D) context.Parts.Any(p => context.Parts.Any(q => p.Name == q.Name));

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that
uses the Entity Framework.
The application defines the following Entity Data Model.

Within the .edmx file, the following function is defined:
<Function Name="Round" ReturnType="Decimal"> <Parameter Name="val" Type="Decimal" /> <DefiningExpression>
CAST(val as Edm.Int32) </DefiningExpression> </Function>
The application includes the following LINQ query.
var query = from detail in context.SalesOrderDetails select detail.LineTotal.Round();
You need to ensure that the Round function executes on the database server when the query is executed. Which code segment should you use?

A) public static class DecimalHelper
{
[EdmFunction("SqlServer", "Round")]
public static Decimal Round(this Decimal Amt)
{
throw new NotSupportedException();
}
}
B) public static class DecimalHelper
{
[EdmFunction("Edm", "Round")]
public static Decimal Round(this Decimal Amt)
{
throw new NotSupportedException();
}
}
C) public static class DecimalHelper
{
public static Decimal Round(this Decimal input)
{
return (Decimal)(Int32)input;
}
}
D) public static class DecimalHelper
{
public static SqlDecimal Round(this Decimal input)
{
return SqlDecimal.Round(input, 0);
}
}

4. The application user interface displays part names or color names in many plases as '## Name ##'.
You need to provide a method named FormattedName() to format part names and color names throughout
the
application. What should you do?

A) Add the following code segment to the ExtensionMethods class in ExtensionMethods.cs:
public static string FormattedName (this IName entity){
return string.Format("## {0} ##", entity.Name)
}
B) Add the following code segment to the ExtensionMethods class in ExtensionMethods.cs:
public static string FormattedName (this Part entity){
return string.Format("## {0} ##", entity.Name)
}
C) Add the following code segmend to the Part class in Part.cs:
public string FormattedName(){
return string.Format("## {0} ##", this.Name);
}
D) Add the following code segmend to the Color class in Color.cs:
public string FormattedName(){
return string.Format("## {0} ##", this.Name);
}
E) Add the following code segment to the ExtensionMethods class in ExtensionMethods.cs:
public static string FormattedName (this Color entity){
return string.Format("## {0} ##", entity.Name)
}

5. You use Microsoft .NET Framework 4.0 to develop an application that connects to a Microsoft SQL Server
200B database.
You populate a SqlDataAdapter by using the following code. (Line numbers are included for reference only.)
01 SqlDataAdapter dataAdapter1 = new SqlDataAdapter("SELECT * FROM
[BlogEntries] ORDER BY CreationDate", connection);
02 cmdBuilder = new SqlCommandBuilder(dataAdapter1);
03 dataAdapter1.Fill(BlogEntryDataSet, "BlogEntries");
04 ....
05 connection.Close();
You need to update the blog owner for all BlogEntry records. Which code segment should you insert at line 04?

A) SqlDataAdapter dataAdapter2 = new SqlDataAdapter(dataAdapterl.UpdateCommand); dataAdapter2.Fill(BlogEntryDataSet, "BlogEntries");
B) foreach(DataRow row in BlogEntryDataSet.Tables["BlogEntries"].Rows) {
row.Item["BlogOwner""] = "New Owner";
}
dataAdapter1.Fill(BlogEntryDataSet, "BlogEntries");
C) foreach(DataRow row in BlogEntryDataSet.Tables["BlogEntries"].Rows) {
row.Item["BlogOwner""] = "New Owner";
}
dataAdapter1.Update(BlogEntryDataSet, "BlogEntries");
D) SqlDataAdapter dataAdapter2 = new SqlDataAdapter("UPDATE [BlogEntries] SET [BlogOwner] = "New
'Owner' 3", connection);
dataAdapter2.Update(BlogEntryDataSet, "BlogEntries");

Solutions: