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

Question 1

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application uses the ADO.NET Entity Framework to manage customer and related order records. You add a new order for an existing customer. You need to associate the Order entity with the Customer entity. What should you do?

A. Call the Add method on the EntityCollection of the Order entity.
B. Set the Value property of the EntityReference of the Order entity.
C. Use the Attach method of the ObjectContext to add both Order and Customer entities.
D. Use the AddObject method of the ObjectContext to add both Order and Customer entities.

Question 2

You are designing an ASP.NET Web application.
You have the following requirements:
*Users must be allowed to save their work in progress on one computer and to continue the work on
another computer.
*Data that is submitted for processing must be valid, and invalid data must be rejected.
*Primary key constraints within the database must be enabled at all times.
*The application must store only data that is entered by the user.
You need to design data validation to support the requirements.
Which two approaches should you recommend? (Each correct answer presents part of the solution.
Choose two.)

A. Store temporary form data as XML in a database table.
B. Add an isTemporary column to each database table, and set all columns to allow null values.
C. Use validators to verify the data when the user submits a form.
D. Provide default values for the database columns, and submit the form with user-entered values when the user saves the form.

Question 3

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 07. using (SqlConnection conn = new SqlConnection(connString)){
conn.Open();
}
B. 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();
}
C. Insert the following code segment at line 04. private SqlConnection conn = new SqlConnection(connString); public void Open(){
conn.Open();
}
public void Close(){
conn.Close();
}
D. 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();
}

Question 4

You are implementing an ASP.NET Web site. The site contains the following class.
public class Address
{
public int AddressType;
public string Line1;
public string Line2;
public string City;
public string ZipPostalCode;
}
The Web site interacts with an external data service that requires Address instances to be given in the
following XML format.
<Address AddressType="2">
<Line1>250 Race Court</Line1>
<City>Chicago</City>
<PostalCode>60603</PostalCode>
</Address>
You need to ensure that Address instances that are serialized by the XmlSerializer class meet the XML
format requirements of the external data service.
Which two actions should you perform (Each correct answer presents part of the solution. Choose two.)

A. Add the following attribute to the AddressType field. [XmlAttribute]
B. Add the following attribute to the Line2 field. [XmlElement(IsNullable=true)]
C. Add the following attribute to the ZipPostalCode field. [XmlAttribute("ZipCode")]
D. Add the following attribute to the ZipPostalCode field. [XmlElement("PostalCode")]

Question 5

You are creating a Windows Communication Foundation (WCF) service that accepts messages from
clients when they are started.
The message is defined as follows.
[MessageContract] public class Agent {
public string CodeName { get; set; }
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public string SecretHandshake { get; set; }
}
You have the following requirements:
"The CodeName property must be sent in clear text.
The service must be able to verify that the property value was not changed after being sent by the client.
"The SecretHandshake property must not be sent in clear text and must be readable by the service. What should you do?

A. Add a MessageBodyMember attribute to the CodeName property and set the ProtectionLevel to Sign. Add a MessageBodyMember attribute to the SecretHandshake property and set the ProtectionLevel to EncryptAndSign.
B. Add an ImmutableObject attribute to the CodeName property and set its value property to true. Add a Browsable attribute to the SecretHandshake property and set its value to false.
C. Add an XmlText attribute to the CodeName property and set the DataType property to Signed. Add a PasswordPropertyText attribute to the SecretHandshake property and set its value to true.
D. Add a DataProtectionPermission attribute to the each property and set the ProtectData property to true.

Solutions: