You are implementing an ASP.NET application that includes a page named TestPage.aspx.
TestPage.aspx uses a master page named TestMaster.master.
You add the following code to the TestPage.aspx code-behind file to read a TestMaster.master public
property named CityName.
protected void Page_Load(object sender, EventArgs e) { string s = Master.CityName; }
You need to ensure that TestPage.aspx can access the CityName property. What should you do?

• A. Add the following directive to TestPage.aspx.
  <%@ MasterType VirtualPath="~/TestMaster.master" %>
• B. Set the Strict attribute in the @ Master directive of the TestMaster.master page to true.
• C. Set the Explicit attribute in the @ Master directive of the TestMaster.master page to true.
• D. Add the following directive to TestPage.aspx.
  <%@ PreviousPageType VirtualPath="~/TestMaster.master" %>

Which class provides paging functionality for data-bound controls that implement the IPageableItemContainer interface?

• A. DataPaging
• B. DataPager
• C. DataPagingField
• D. DataPagerCollection

You are implementing an ASP.NET application. You add the following code segment.
public List<Person> GetNonSecretUsers()
{ string[] secretUsers = {"@secretUser", "@admin", "@root"}; List<Person> allpeople = GetAllPeople(); ...
}
You need to add code to return a list of all Person objects except those with a UserId that is contained in the secretUsers list.
The resulting list must not contain duplicates. Which code segment should you use?

• A. List<Person> people = new List<Person>( from p in allPeople from u in secretUsers where p.UserId != u select p);
  return people.Distinct();
• B. var secretPeople = (from p in allPeople from u in secretUsers where p.UserId == u select p).Distinct();
  return allPeople.Except(secretPeople);
• C. return (from p in allPeople from u in secretUsers where p.UserId != u select p).Distinct();
• D. return from p in allPeople from u in secretUsers where p.UserId != u select p;

You are implementing an ASP.NET page that includes the following drop-down list.
<asp:PlaceHolder ID="dynamicControls" runat="server">
<asp:DropDownList ID="MyDropDown" runat="server">
<asp:ListItem Text="abc" value="abc" />
<asp:ListItem Text="def" value="def" />
</asp:DropDownList> </asp:PlaceHolder>
You need to dynamically add values to the end of the drop-down list. What should you do?

• A. Add the following event handler to the page code-behind.
  protected void Page_LoadComplete(object sender, EventArgs e)
  { DropDownList ddl = Page.FindControl("MyDropDown") as DropDownList; Label lbl = new Label(); lbl.Text = "Option"; lbl.ID = "Option"; ddl.Controls.Add(lbl);
  }
• B. Add the following OnPreRender event handler to the asp:DropDownList
  protected void MyDropDown_PreRender(object sender, EventArgs e)
  {
  DropDownList ddl = sender as DropDownList;
  ddl.Items.Add("Option");
  }
• C. Add the following OnPreRender event handler to the asp:DropDownList
  protected void MyDropDown_PreRender(object sender, EventArgs e)
  {
  DropDownList ddl = sender as DropDownList;
  Label lbl = new Label();
  lbl.Text = "Option";
  lbl.ID = "Option";
  ddl.Controls.Add(lbl);
  }
• D. Add the following event handler to the page code-behind.
  protected void Page_LoadComplete(object sender, EventArgs e)
  { DropDownList ddl = Page.FindControl("MyDropDown") as DropDownList; ddl.Items.Add("Option");
  }

You are implementing an ASP.NET Web site.
The site allows users to explicitly choose the display language for the site's Web pages.
You create a Web page that contains a DropDownList named ddlLanguage, as shown in the following code
segment.
<asp:DropDownList ID="ddlLanguage" runat="server" AutoPostBack="True"
ClientIDMode="Static" OnSelectedIndexChanged="SelectedLanguageChanged"> <asp:ListItem Value="en">English</asp:ListItem> <asp:ListItem Value="es">Spanish</asp:ListItem> <asp:ListItem Value="fr">French</asp:ListItem> <asp:ListItem Value="de">German</asp:ListItem>
</asp:DropDownList>
The site contains localized resources for all page content that must be translated into the language that is
selected by the user.
You need to add code to ensure that the page displays content in the selected language if the user selects
a language in the drop-down list.
Which code segment should you use?

• A. protected void Page_Load(object sender, EventArgs e) {
  Page.Culture = Request.Form["ddlLanguage"];
  }
• B. protected override void InitializeCulture() {
  Page.UICulture = Request.Form["ddlLanguage"];
  }
• C. protected override void InitializeCulture() {
  Page.Culture = ddlLanguage.SelectedValue;
  }
• D. protected void SelectedLanguageChanged(object sender, EventArgs e) {
  Page.UICulture = ddlLanguage.SelectedValue;
  }