You create a Microsoft ASP.NET Web application. The application contains a Mobile Web Form that enables the search functionality.
A DataTable named dtCategories is defined in the code-behind file. dtCategories contains a DataColumn named Category.
You need to add a drop-down list to ensure that users can filter the search results by category.
Which code segment should you add to the code-behind file?

• A. List list = new List(); Form1.Controls.Add(list); list.DataSource = dtCategories; list.DataTextField = "Category"; list.DataValueField = "Category"; list.DataBind();
• B. SelectionList slist = new SelectionList(); Form1.Controls.Add(slist); slist.DataSource = dtCategories; slist.DataTextField = "Category"; slist.DataValueField = "Category"; slist.DataBind();
• C. ObjectList olist = new ObjectList(); Form1.Controls.Add(olist);
  olist.DataSource = dtCategories;
  olist.TableFields = "Category";
  olist.LabelField = "Category";
  olist.DataBind();
• D. ObjectListControlBuilder olcb = new ObjectListControlBuilder(); foreach (DataRow row in dtCategories.Rows) { olcb.AppendLiteralString(row["Category"].ToString()); }

You have a Microsoft ASP.NET Web application.
You create the following HTTP handler to return images from the database. (Line numbers are included for reference only).
01 Class GenerateImage 02 Implements IHttpHandler 03 Public ReadOnly Property IsReusable() As Boolean 04 Get 05 Return True 06 End Get 07 End Property 09 Public Sub ProcessRequest(ByVal context As HttpContext) 10 Dim imageName As String = context.Request.QueryString("ImageName") 11 Dim image As New Bitmap(imageName) 13 End Sub 14 End
You need to ensure that GenerateImage returns images to the Web application.
Which code segment should you insert at line 12?

• A. context.Response.Headers.Add("image/jpeg", imageName) context.Response.Write(imageName)
• B. context.Response.ContentType = "image/jpeg" image.Save(context.Response.OutputStream, ImageFormat.Jpeg)
• C. context.Response.Headers.Add("image/jpeg", imageName) image.Save(context.Response.OutputStream, ImageFormat.Jpeg)
• D. context.Response.ContentType = "image/jpeg" context.Response.Write(imageName)

You are creating a Web application. The application contains a file named books.xml.
The books.xml file contains the following code fragment. (Line numbers are included for reference only.)
01 <?xml version='1.0'?>
02 <bookstore>
03 <book genre="novel" style="other">
04 <title>The Confidence Man</title>
05 </book>
06 <book genre="novel" style="hardcover">
07 <title>The Handmaid's Tale</title>
08 </book>
09 <book genre="novel" style="other">
10 <title>The Poisonwood Bible</title>
11 </book>
12 </bookstore>
You write the following code segment.
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(Server.MapPath("books.xml"));
XmlDocumentFragment newBook = xmlDocument.CreateDocumentFragment();
newBook.InnerXml = ("<book genre=\"philosophy\" style=\"other\" >" +
"<title>The Gorgias</title>" +
"</book>");
XmlElement rootXmlElement = xmlDocument.DocumentElement;
You need to ensure that XmlDocumentFragment contained in the newBook variable is inserted between lines 05 and 06 in the XML document.
Which code segment should you use?

• A. rootXmlElement.InsertBefore(newBook, rootXmlElement.NextSibling);
• B. rootXmlElement.InsertAfter(newBook, rootXmlElement.NextSibling);
• C. rootXmlElement.InsertAfter(newBook, rootXmlElement.FirstChild);
• D. rootXmlElement.InsertBefore(newBook, rootXmlElement.FirstChild);

You are developing a Microsoft ASP.NET application that includes a Web content Form based on one of
the master pages of the application.
The Web content Form includes a drop-down list control. You select the drop-down list control in Microsoft
Visual Studio Designer.
You need to create an event handler when the item selected in the drop-down list control changes. What should you do?

• A. Select the AutoPostBack option in the Properties window of the Web content Form.
• B. Select the SelectedIndexChanged option in the Properties window of the master page.
• C. Select the SelectedIndexChanged option in the Properties window of the Web content Form.
• D. Select the AutoPostBack option in the Properties window of the master page.