You are developing an ASP.NET MVC 2 Web application.
A page makes an AJAX request and expects a list of company names in the following format.
["Adventure Works","Contoso"]
You need to write an action method that returns the response in the correct format. Which type should you return from the action method?

• A. XDocument
• B. AjaxHelper
• C. DataContractJsonSerializer
• D. JsonResult

You are implementing an ASP.NET AJAX page. You add the following control to the page.
<asp:UpdatePanel ID="pnl1" runat="server" UpdateMode="Conditional"> <ContentTemplate> ... </ContentTemplate> </asp:UpdatePanel>
You need update the contents of the UpdatePanel without causing a full reload of the page.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A. Add an AsyncPostBackTrigger that references Timer1.
• B. Add a PostBackTrigger that references Timer1.
• C. Add the following control within the UpdatePanel.
  <asp:Timer ID="Timer1" OnLoad="Timer1_Tick" runat="server" Interval="3000" / >
• D. Add the following control before the UpdatePanel.
  <asp:Timer ID="Timer1" OnLoad="Timer1_Tick" runat="server" Interval="3000" / >

You are implementing a method in an ASP.NET application that includes the following requirements.
Store the number of active bugs in the cache.
The value should remain in the cache when there are calls more often than every 15 seconds.
The value should be removed from the cache after 60 seconds.
You need to add code to meet the requirements. Which code segment should you add?

• A. Cache.Insert("ActiveBugs", result, null, DateTime.Now.AddSeconds(60), TimeSpan.FromSeconds(15));
• B. CacheDependency cd = new CacheDependency(null, new string[] { "Trigger" }); Cache.Insert("Trigger", DateTime.Now, null, DateTime.Now.AddSeconds(60), Cache.NoSlidingExpiration); Cache.Insert("ActiveBugs", result, cd, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(15));
• C. Cache.Insert("ActiveBugs", result, null, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(15)); CacheDependency cd = new CacheDependency(null, new string[] { "ActiveBugs" }); Cache.Insert("Trigger", DateTime.Now, cd, DateTime.Now.AddSeconds(60), Cache.NoSlidingExpiration);
• D. Cache.Insert("Trigger", DateTime.Now, null, DateTime.Now.AddSeconds(60), Cache.NoSlidingExpiration); CacheDependency cd = new CacheDependency(null, new string[] { "Trigger" }); Cache.Insert("ActiveBugs", result, cd, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(15));

You are perfoming security testing on an existing asp.net web page.
You notice that you are able to issue unauthorised postback requests to the page.
You need to prevent unauthorised post back requests. which page directive you use?

• A. <%@Page EnableEventValidation = "true" %>
• B. <%@Page Aspcompact = "true" %>
• C. <%@Page strict = "true" %>
• D. <%@Page enableViewStateMac = "true" %>

You are implementing a WCF service library.
You add a new code file that contains the following code segment.
namespace ContosoWCF
{ [ServiceContract] public interface IRateService {
[OperationContract]
decimal GetCurrentRate();
}
public partial class RateService : IRateService
{
public decimal GetCurrentRate()
{
decimal currentRate = GetRateFromDatabase(); return currentRate; } } }
You build the service library and deploy its assembly to an IIS application.
You need to ensure that the GetCurrentRate method can be called from JavaScript.
What should you do?

• A. Apply the script service attribute to rate serice class Rebulid the WCF servicelibrary, and redploy the assembly to the IIS application.
• B. Add a file named Service.svc to the IIS application. Add the following code segment to the file.
  <%@ ServiceHost Service="ContosoWCF.IRateService"
  Factory="System.ServiceModel.Activation.WebScriptServiceHostFactory" %>
• C. Apply the Web get attibute to the Get Currant rate interface Method.Rebuild the WCF servicelibrary, and redploy the assembly to the IIS application.
• D. Add a file named Service.svc to the IIS application. Add the following code segment to the file.
  <%@ ServiceHost Service="ContosoWCF.RateService"
  Factory="System.ServiceModel.Activation.WebScriptServiceHostFactory" %>