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Microsoft 70-516 Exam Syllabus Topics:

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

Question 1

The application populates a DataSet object by using a SqlDataAdapter object.
You use the DataSet object to update the Categories database table in the database. You write the
following code segment.
(Line numbers are included for reference only.)
01 SqlDataAdapter dataAdpater = new SqlDataAdapter("SELECT CategoryID,
CategoryName FROM Categories", connection);
02 SqlCommandBuilder builder = new SqlCommandBuilder(dataAdpater);
03 DataSet ds = new DataSet();
04 dataAdpater.Fill(ds);
05 foreach (DataRow categoryRow in ds.Tables[0].Rows)
06 {
07 if (string.Compare(categoryRow["CategoryName"].ToString(), searchValue,
true) == 0)
08 {
09 ...
10 }
11 }
12 dataAdpater.Update(ds);
You need to remove all the records from the Categories database table that match the value of the
searchValue variable.
Which line of code should you insert at line 09?

A. ds.Tables[0].Rows.Remove(categoryRow);
B. categoryRow.Delete();
C. ds.Tables[0].Rows.RemoveAt(0);
D. ds.Tables[0].Rows[categoryRow.GetHashCode()].Delete();

Question 2

You use Microsoft .NET framework 4.0 to develop an application that connects to a Microsoft SQL Server
2008 database named AdventureWorksLT.
The database resides on an instance named INSTA on a server named SQL01.
You need to configure the application to connect to the database. Which connection string should you add
to the .config file?

A. Data Source=SQL01; Initial Catalog=AdventureWorksLT; Integrated Security=true; Application Name=INSTA;
B. Data Source=SQL01; Initial Catalog=INSTA; Integrated Security=true; Application Name=AdventureWorksLT;
C. Data Source=AdventureWorksLT; Initial Catalog=SQL01\INSTA; Integrated Security=true;
D. Data Source=SQL01\INSTA; Initial Catalog=AdventureWorksLT; Integrated Security=true;

Question 3

You use Microsoft .NET Framework 4.0 to develop an ASP.NET Web application that connects to a
Microsoft SQL Server 2008 database.
The application uses Integrated Windows authentication in Internet Information Services (IIS) to
authenticate users.
A connection string named connString defines a connection to the database by using integrated security.
You need to ensure that a SqlCommand executes under the application pool's identity on the database
server.
Which code segment should you use?

A. using (var conn = new SqlConnection(connString))
{
var cmd = new SqlCommand ("SELECT * FROM BLOG, conn);
conn.Open();
using(HostingEnvironment.Impersonate())
{
var result = cmd.ExecuteScalar();
}
}
B. using (var conn = new SqlConnection())
{
conn.ConnectionString = connString;
SqlCommand cmd = null;
using (HostingEnvironment.Impersonate())
{
cmd = new SqlCommand("SELECT * FROM BLOG", conn);
}
conn.Open();
var result = cmd.ExecuteScalar();
}
C. using (var conn = new SqlConnection())
{
conn.ConnectionString = connString;
var cmd = new SqlCommand("SELECT * FROM BLOG", conn);
using (HostingEnvironment.Impersonate())
{
conn.Open();
}
var result = cmd.ExecuteScalar();
}
D. using (var conn = new SqlConneccion())
{
using (HostingEnvironroent.Impersonate())
{
conn.ConnectionString = connString;
}
var cmd = new SqlCommand("SELECT * FROM BLOG, conn);
conn.Open() ;
var result = cmd.ExecuteScalar();
}

Question 4

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 the following object query to load a product from the database.
(Line numbers are included for reference only.)
01 using (AdventureWorksEntities advWorksContext = new AdventureWorksEntities
())
02 {
03 ObjectQuery <Product> productQuery = advWorksContext.Product.Where
("it.ProductID = 900");
04 ...
05 }
You need to log the command that the query executes against the data source. Which code segment should you insert at line 04?

A. Trace.WriteLine(productQuery.CommandText);
B. Trace.WriteLine(productQuery.ToTraceString());
C. Trace.WriteLine(productQuery.ToString());
D. Trace.WriteLine(((IQueryable)productQuery).Expression);

Question 5

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to several SQL Server databases. You create a function that modifies customer
records that are stored in multiple databases.
All updates for a given record are performed in a single transaction. You need to ensure that all transactions
can be recovered.
What should you do?

A. Call the EnlistDurable method of the Transaction class.
B. Call the EnlistVolatile method of the Transaction class.
C. Call the Reenlist method of the TransactionManager class.
D. Call the RecoveryComplete method of the TransactionManager class.

Solutions: