Microsoft 070-523 Exam : UPG:Transition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev

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Microsoft 070-523 Exam Syllabus Topics:

Microsoft UPG:Transition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Sample Questions:

1. You are creating a Windows Communication Foundation (WCF) service. You do not want to expose the internal implementation at the service layer. You need to expose the following class as a service named Arithmetic with an operation named Sum. public class Calculator {
public int Add(int x, int y)
{
}
}
Which code segment should you use?

A) [ServiceContract(Name="Arithmetic")] public class Calculator {
[OperationContract(Name="Sum")]
public int Add(int x, int y)
{
...
}
}
B) [ServiceContract(Name="Arithmetic")] public class Calculator {
[OperationContract(ReplyAction="Sum")]
public int Add(int x, int y)
{
...
}
}
C) [ServiceContract(ConfigurationName="Arithmetic")] public class Calculator {
[OperationContract(Action="Sum")]
public int Add(int x, int y)
{
...
}
}
D) [ServiceContract(Namespace="Arithmetic")] public class Calculator {
[OperationContract(Action="Sum")]
public int Add(int x, int y)
{
...
}
}

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Communication Foundation (WCF) Data Services service. The service connects to a Microsoft SQL Server 2008 database. The service is hosted by an Internet Information Services (IIS) 6.0 server. You need to ensure that applications authenticate against user information stored in the database before the application is allowed to use the service. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Configure IIS to require basic authentication.
B) Configure IIS to allow anonymous access.
C) Modify the Data Services service to use a Microsoft ASP.NET membership provider.
D) Enable the WCF Authentication Service.
E) Configure IIS to require Windows authentication.

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server 2008 database. The database includes a table named dbo. Documents that contains a column with large binary dat a. You are creating the Data Access Layer (DAL). You add the following code segment to query the dbo.Documents table. (Line numbers are included for reference only.)
01public void LoadDocuments(DbConnection cnx)
02{
03var cmd = cnx.CreateCommand();
04cmd.CommandText = "SELECT * FROM dbo.Documents";
05...
06cnx.Open();
08ReadDocument(reader); }
You need to ensure that data can be read as a stream. Which code segment should you insert at line 07?

A) var reader = cmd.ExecuteReader(CommandBehavior.Default);
B) var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);
C) var reader = cmd.ExecuteReader(CommandBehavior.KeyInfo);
D) var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly);

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application.
The application contains the following code segment. (Line numbers are included for reference only.)
01 class DataAccessLayer
02 {
03 private static string connString;
04
05 ...
06 public static DataTable GetDataTable(string command){
07
08 ...
09 }
10 }
You need to define the connection life cycle of the DataAccessLayer class. You also need to ensure that
the application uses the minimum number of connections to the database.
What should you do?

A) Insert the following code segment at line 04. private SqlConnection conn = new SqlConnection(connString); public void Open(){
conn.Open();
}
public void Close(){
conn.Close();
}
B) Insert the following code segment at line 04. private static SqlConnection conn = new SqlConnection(connString); public static void Open(){
conn.Open();
}
public static void Close(){
conn.Close();
}
C) Insert the following code segment at line 07. using (SqlConnection conn = new SqlConnection(connString)){
conn.Open();
}
D) Replace line 01 with the following code segment.
class DataAccessLayer : IDisposable
Insert the following code segment to line 04.
private SqlConnection conn = new SqlConnection(connString);
public void Open(){
conn.Open();
}
public void Dispose(){
conn.Close();
}

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The
application uses the ADO.NET Entity Framework to model entities. The application allows users to make
changes to entities while disconnected from the central data store.
You need to ensure that when the user connects to the central data store and retrieves new data, the
application meets the following requirements:
*Changes made to the local data store in disconnected mode are preserved.
*Entities that have already been loaded into the local data store, but have not been modified by the user,
are updated with the latest data.
What should you do?

A) Call the query's Execute method by using the MergeOptions.AppendOnly option.
B) Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins method.
C) Call the query's Execute method by using the MergeOptions.OverwriteChanges option.
D) Call the Refresh method of ObjectContext by using the RefreshMode.StoreWins option.

Solutions: