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Microsoft 070-516 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 write the following code segment that executes two commands against the database within a
transaction.
(Line numbers are included for reference only.)
01 using(SqlConnection connection = new SqlConnection(cnnStr)) {
02 connnection.Open();
03 SqlTransaction sqlTran = connection.BeginTransaction();
04 SqlCommand command = connection.CreateCommand();
05 command.Transaction = sqlTran;
06 try{
07 command.CommandText = "INSERT INTO Production.ScrapReason(Name)
VALUES('Wrong size')";
08 command.ExecuteNonQuery();
09 command.CommandText = "INSERT INTO Production.ScrapReason(Name)
VALUES('Wrong color')";
10 command.ExecuteNonQuery();
11 ...
l2 }
You need to log error information if the transaction fails to commit or roll back. Which code segment should you insert at line 11?

A. catch (Exception ex) { sqlTran.Rollback();
Trace.WriteLine(ex.Message);
}
finaly {
try {
sqltran.commit( );
}
catch (Exception exRollback) {
Trace.WriteLine(excommit.Message);
}
}
B. sqlTran.Commit(); } catch (Exception ex) {
Trace.WriteLine(ex.Message);
try {
sqlTran.Rollback();
}
catch (Exception exRollback) {
Trace.WriteLine(exRollback.Message);
}
}
C. catch (Exception ex){ Trace.WriteLine(ex.Message); try{
sqlTran.Rollback();
}
catch (Exception exRollback){
Trace.WriteLine(exRollback.Message);
}
}
finaly {
sqltran.commit( );
}
D. sqlTran.Commit(); } catch (Exception ex) {
sqlTran.Rollback();
Trace.WriteLine(ex.Message);
}

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 2008 database.
The database includes a database table named ProductCatalog as shown in the exhibit:

You add the following code segment to query the first row of the ProductCatalog table. (Line numbers are included for reference only.)
01 using(SqlConnection cnx = new SqlConnection(connString)
02 {
03 var command = cnx.CreateCommand();
04 command.CommandType = CommandType.Text;
05 command.CommandText = "SELECT TOP 1 * FROM dbo.ProductCatalog";
06 cnx.Open();
07 var reader = command.ExecuteReader();
08 if (reader.Read())
09 {
10 var id = reader.GetInt32(0);
11 ...
12 reader.Close();
13 }
14 }
Which answer belongs in line 11?

A. var weight = reader.GetFloat(1); var price = reader.Doublel(2); var status = reader.GetByte(3);
B. var weight = reader.GetDouble(1); var price = reader.GetFloat(2); var status = reader.GetBoolean(3);
C. var weight = reader.GetDouble(1); var price = reader.GetDecimal(2); var status = reader.GetBoolean(3);
D. var weight
= reader.GetFloat(1); var price = reader.GetDecimal(2); var status = reader.GetByte(3);

Question 3

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a multi-tier application.
You use Microsoft ADO.NET Entity Data Model (EDM) to model entities.
The model contains entities named SalesOrderHeader and SalesOrderDetail.
For performance considerations in querying SalesOrderHeader, you detach SalesOrderDetail entities from
ObjectContext.
You need to ensure that changes made to existing SalesOrderDetail entities updated in other areas of your
application are persisted to the database.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A. Set the MergeOption of SalesOrderDetail to MergeOptions.OverwriteChanges.
B. Call ObjectContext.ApplyCurrentValue.
C. Set the MergeOption of SalesOrderDetail to MergeOptions.NoTracking.
D. Re-attach the SalesOrderDetail entities.
E. Call ObjectContext.ApplyOriginalValue.

Question 4

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
You manually create your own Context class named AdventureWorksDB that inherits from ObjectContext.
You need to use AdventureWorksDB to invoke a stored procedure that is defined in the data source.
Which method should you call?

A. ExecuteFunction
B. Translate
C. ExecuteStoreCommand
D. ExecuteStoreQuery

Question 5

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 to retrieve data from the
database.
You need to enable query plan caching. Which object should you use?

A. EntityConnection
B. EntityTransaction
C. EntityDataReader
D. EntityCommand

Solutions: