You are implementing an ASP.NET web application.The application defines the following classes. public class Person {
public String Name{get; set;} publicIList<Address> Addresses{get;set;} }
public class Address
{ public String AddressType{get; set;} public string AddressValue{get;set;}
}
The applicaction must generate XML from personList, wich is a collection of Person instances.The following
XML is an example of the schema than the generated XML must use.
<Persons>
<Person Name="John Doe">
<Address Email="[email protected]"/>
<Address AlternativeEmail="[email protected]"/>
<Address MSNInstanceMessenger="[email protected]"/>
</Person>
.....
</Persons>
You need to generate the XML.
Wich code segment should you use?

• A. var XML= new XElement("Persons", from person in personList
  Select (new XElement("Person",
  newXAttribute("Name", person.Name),
  from addr in person.Addresses
  select new XElement("Address",
  newXAttribute(addr.AddressType,
  addr.AddressValue)))));
• B. var XML= new XElement("Persons", from person in personList
  Select (new XElement("Persons",
  newXElement("Name", person.Name),
  from addr in person.Addresses
  select new XElement("Address",
  newXElement(addr.AddressType,
  addr.AddressValue)))));
• C. var XML= new XElement("Persons",
  from person in personList
  Select (new XElement("Persons",
  newXAttribute("Name", person.Name))));
• D. var XML= new XAttribute("Persons", from person in personList
  Select (new XElement("Persons",
  newXAttribute("Name", person.Name),
  from addr in person.Addresses
  select new XAttribute("Address",
  newXAttribute(addr.AddressType,
  addr.AddressValue)))));

You are developing an ASP.NET MVC 2 application.
A view contains a form that allows users to submit their first name.
You need to display the value that is submitted, and you must ensure that your code avoids cross-site
scripting.
Which code segment should you use?

• A. <%: Model.FirstName %>
• B. <%= Model.FirstName %>
• C. <% Response.Write(Model.FirstName) %>
• D. <% Response.Write(HttpUtility.HtmlDecode(Model.FirstName)) %>

You create a Web page that contains the following code.
<script type="text/javascript">
var lastId = 0; </script> <div class="File">
Choose a file to upload:
<input id="File0" name="File0" type="file" /> </div> <input id="AddFile" type="button" value="Add a File" /> <input id="Submit" type="submit" value="Upload" />
You need to provide the following implementation.
Each time the AddFile button is clicked, a new div element is created.
The new div element is appended after the other file upload div elements and before the AddFile span.
Each new element has a unique identifier.
Which code segment should you use?

• A. $("#AddFile").click(function () { var id = "File" + ++lastId; var item = $(".File:first").clone(true); $("input:file", item).attr({ id: id, name: id }); item.insertBefore("#AddFile");
  });
• B. $("#AddFile").click(function () { var id = "File" + ++lastId; var item = $(".File:first").clone(true); $("input:file", item).attr({ id: id, name: id }); item.insertAfter("input[type=file]");
  });
• C. $("#AddFile").click(function () { var id = "File" + ++lastId; $(".File:first").clone(true).attr({ id: id, name: id }).insertBefore
  ("#AddFile");
  });
• D. $("#AddFile").click(function () {
  var id = "File" + ++lastId;
  });

You are implementing an ASP.NET application that uses LINQ to Entities to access and update the
database.
The application includes the following method to update a detached entity of type Person.
private NorthwindContext _entities;
public void UpdatePerson(Person personToEdit) { }
You need to implement the UpdatePerson method to update the database row that corresponds to the
personToEdit object.
Which code segment should you use?

• A. _entities.People.ApplyCurrentValues(personToEdit); _entities.SaveChanges();
• B. _entities.ObjectStateManager.ChangeObjectState(personToEdit, EntityState.Added); _entities.SaveChanges();
• C. _entities.People.Attach(new Person() { Id = personToEdit.Id }); _entities.ObjectStateManager.ChangeObjectState(personToEdit, EntityState.Modified); _entities.SaveChanges();
• D. _entities.People.Attach(personToEdit); _entities.ObjectStateManager.ChangeObjectState(personToEdit, EntityState.Modified); _entities.SaveChanges();

You are developing an ASP.NET Web page that uses jQuery validation.
The user should enter a valid email address in a text box that has ID txtEmail. The page must display "E-
Mail address required" when the user does not enter an address and "Invalid e-mail address" when the user
enters an address that is not formatted properly.
You need to ensure that the appropriate error message is displayed when the text box does not contain a
valid e-mail address.
Which two code segments should you add? (Choose 2)

• A. txtEmail: { messages: { required: "E-mail address required", email: "Invalid e-mail address" } }
• B. messages: {
  txtEmail:
  {
  required: "E-mail address required",
  email: "Invalid e-mail address"
  }
  }
• C. txtEmail: { rules: { required: true email: true } }
• D. rules: { txtEmail: { required: true email: true } }