Microsoft 70-516

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Microsoft 70-516 Exam Syllabus Topics:

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

Question #1

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 the following SQL statement to retrieve an instance of a DataSet object named ds:
SELECT CustomerID, CompanyName, ContactName, Address, City FROM dbo.Customers
You need to query the DataSet object to retrieve only the rows where the ContactName field is not NULL. Which code segment should you use?

A. from row in ds.Tables[0].AsEnumerable() where (string)row["ContactName"] != null select row;
B. from row in ds.Tables[0].AsEnumerable() where row.Field<string>("ContactName") != null select row;
C. from row in ds.Tables[0].AsEnumerable() where !Convert.IsDBNull(row.Field<string>("ContactName")) select row;
D. from row in ds.Tables[0].AsEnumerable() where !row.IsNull((string)row["ContactName"]) select row;

Question #2

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

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

Question #4

You use Microsoft .NET Framework 4.0 to develop an application that uses WCF Data Services to persist entities from the following Entity Data Model.

You create a new Blog instance named newBlog and a new Post instance named newPost as shown in the
following code segment.
(Line numbers are included for reference only.)
01 Blog newBlog = new Blog();
02 Post newPost = new Post();
03 ....
04 Uri serviceUri = new Uri("...");
05 BlogsEntities context = new BlogsEntities(serviceUri);
06 ....
You need to ensure that newPost is related to newBlog through the Posts collection property and that
newPost and newBlog are sent to the service.
Which code segment should you insert at line 06?

A. context.AttachLink(newBlog, "Posts", newPost); context.SaveChanges(SaveChangesOptions.Batch) ;
B. newBlog.Posts.Add(newPost); context.UpdateObject(newBlog); context.UpdateObject(newPost); context.SaveChanges(SaveChangesOptions.Batch);
C. newBlog.Posts.Add(newPost); context.AttachTo("Blogs", newBlog); context.AttachTo("Posts", newPost); context.SaveChanges(SaveChangesOptions.Batch);
D. newBlog.Posts.Add(newPost); context.AddToBlogs(newBlog); context.AddToPosts(newPost); context.SaveChanges(SaveChangesOptions.Batch);

Question #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: