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Exam Code: 70-515
Exam Name: TS: Web Applications Development with Microsoft .NET Framework 4
Certification Provider: Microsoft
Corresponding Certifications: MCPD, MCPD: Web Developer 4, MCTS, MCTS: Microsoft .NET Framework 4, Web Applications

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QUESTION 11
You use the following declaration to add a Web user control named TestUserControl.ascx to an ASP.NET page named TestPage.aspx.
<uc:TestUserControl ID=”testControl” runat=”server”/>
You add the following code to the code-behind file of TestPage.aspx.
private void TestMethod()
{

}
You define the following delegate.
public delegate void MyEventHandler();
You need to add an event of type MyEventHandler named MyEvent to TestUserControl.ascx and attach the page’s TestMethod method to the event.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.    Add the following line of code to TestUserControl.ascx.cs.
public event MyEventHandler MyEvent;
B.    Add the following line of code to TestUserControl.ascx.cs.
public MyEventHandler MyEvent;
C.    Replace the TestUserControl.ascx reference in TestPage.aspx with the following declaration.
<uc:TestUserControl ID=”testControl” runat=”server”
OnMyEvent=”TestMethod”/>
D.    Replace the TestUserControl.ascx reference in TestPage.aspx with the following declaration.
<uc:TestUserControl ID=”testControl” runat=”server”
MyEvent=”TestMethod”/>

Answer: AC

QUESTION 12
You create a custom server control named Task that contains the following code segment. (Line numbers are included for reference only.)
01 namespace DevControls
02 {
03 public class Task : WebControl
04 {
05 [DefaultValue(“”)]
06 public string Title { … }
07
08 protected override void RenderContents(HtmlTextWriter output)
09 {
10 output.Write(Title);
11 }
12 }
13 }
You need to ensure that adding a Task control from the Toolbox creates markup in the following format.
<Dev:Task ID=”Task1″ runat=”server” Title=”New Task” />
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.    Add the following code segment to the project’s AssemblyInfo.cs file.
[assembly: TagPrefix(“DevControls”, “Dev”)]
B.    Replace line 05 with the following code segment.
[DefaultValue(“New Task”)]
C.    Insert the following code segment immediately before line 03.
[ToolboxData(“<{0}:Task runat=\”server\” Title=\”New Task\” />”)]
D.    Replace line 10 with the following code segment.
output.Write(“<Dev:Task runat=\”server\” Title=\”New Task\” />”);

Answer: AC

QUESTION 13
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 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);
}
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 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);
}
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”);
}

Answer: B

QUESTION 14
You create an ASP.NET page that contains the following tag.
<h1 id=”hdr1″ runat=”server”>Page Name</h1>
You need to write code that will change the contents of the tag dynamically when the page is loaded.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A.    this.hdr1.InnerHtml = “Text”;
B.    (hdr1.Parent as HtmlGenericControl).InnerText = “Text”;
C.    HtmlGenericControl h1 = this.FindControl(“hdr1”) as
HtmlGenericControl;
h1.InnerText = “Text”;
D.    HtmlGenericControl h1 = Parent.FindControl(“hdr1”) as
HtmlGenericControl;
h1.InnerText = “Text”;

Answer: AC

QUESTION 15
You are implementing custom ASP.NET server controls.
You have a base class named RotaryGaugeControl and two subclasses named CompassGaugeControl and SpeedGaugeControl.
Each control requires its own client JavaScript code in order to function properly.
The JavaScript includes functions that are used to create the proper HTML elements for the control.
You need to ensure that the JavaScript for each of these controls that is used in an ASP.NET page is included in the generated HTML page only once, even if the ASP.NET page uses multiple instances of the given control.
What should you do?

A.    Place the JavaScript in a file named controls.js and add the following code line to the
Page_Load method of each control.
Page.ClientScript.RegisterClientScriptInclude(this.GetType(),
“script”, “controls.js”);
B.    Add the following code line to the Page_Load method of each control, where strJavascript
contains the JavaScript code for the control.
Page.ClientScript.RegisterClientScriptBlock(this.GetType(),
“script”, strJavascript);
C.    Add the following code line to the Page_Load method of each control, where CLASSNAME
is the name of the control class and strJavascript contains the JavaScript code for the control.
Page.ClientScript.RegisterStartupScript(typeof(CLASSNAME),
“script”, strJavascript);
D.    Add the following code line to the Page_Load method of each control, where CLASSNAME is
the name of the control class and strJavascript contains the JavaScript code for the control.
Page.ClientScript.RegisterClientScriptBlock(typeof(CLASSNAME),
“script”, strJavascript);

Answer: D

QUESTION 16
You are creating an ASP.NET Web site.
The site is configured to use Membership and Role management providers.
You need to check whether the currently logged-on user is a member of a role named Administrators.
Which code segment should you use?

A.    bool isMember = Roles.GetUsersInRole(“Administrators”).Any();
B.    bool isMember = Membership.ValidateUser(User.Identity.Name,
“Administrators”);
C.    bool isMember = Roles.GetRolesForUser(“Administrators”).Any();
D.    bool isMember = User.IsInRole(“Administrators”);

Answer: D

QUESTION 17
You are creating an ASP.NET Web site.
You create a HTTP module named CustomModule, and you register the module in the web.config file.
The CustomModule class contains the following code.
public class CustomModule : IHttpModule
{
string footerContent = “<div>Footer Content</div>”;
public void Dispose() {}
}
You need to add code to CustomModule to append the footer content to each processed ASP.NET page.
Which code segment should you use?

A.    public CustomModule(HttpApplication app)
{
app.EndRequest += new EventHandler(app_EndRequest);
void app_EndRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
app.Response.Write(footerContent);
}
B.    public void Init(HttpApplication app)
{
app.EndRequest += new EventHandler(app_EndRequest);
void app_EndRequest(object sender, EventArgs e)
{
HttpApplication app = new HttpApplication();
app.Response.Write(footerContent);
}
C.    public customModule();
{
HttpApplication app = new HttpApplication();
app.EndRequest += new EventHandler(app_EndRequest);
}
void app_EndRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
app.Response.Write(footerContent);
}
D.    public void Init(HttpApplication app)
{
app.EndRequest += new EventHandler(app_EndRequest);
}
void app_EndRequest(object sender, EventArgs e)
{
HttpApplication app = sender as HttpApplication;
app.Response.Write(footerContent);
}

Answer: D

QUESTION 18
You are implementing an ASP.NET Web site.
The root directory of the site contains a page named Error.aspx.
You need to display the Error.aspx page if an unhandled error occurs on any page within the site.
You also must ensure that the original URL in the browser is not changed.
What should you do?

A.    Add the following configuration to the web.config file.
<system.web>
<customErrors mode=”On”>
<error statusCode=”500″ redirect=”~/Error.aspx” />
</customErrors>
</system.web>
B.    Add the following configuration to the web.config file.
<system.web>
<customErrors redirectMode=”ResponseRewrite” mode=”On”
defaultRedirect
=”~/Error.aspx” />
</system.web>
C.    Add the following code segment to the Global.asax file.
void Application_Error(object sender, EventArgs e)
{
Response.Redirect(“~/Error.aspx”);
}
D.    Add the following code segment to the Global.asax file.
void Page_Error(object sender, EventArgs e)
{
Server.Transfer(“~/Error.aspx”);
}

Answer: B

QUESTION 19
You are implementing an ASP.NET Web site.
The site uses a component that must be dynamically configured before it can be used within site pages.
You create a static method named SiteHelper.Configure that configures the component.
You need to add a code segment to the Global.asax file that invokes the SiteHelper.Configure method the first time, and only the first time, that any page in the site is requested.
Which code segment should you use?

A.    void Application_Start(object sender, EventArgs e)
{
SiteHelper.Configure();
}
B.    void Application_Init(object sender, EventArgs e)
{
SiteHelper.Configure();
}
C.    void Application_BeginRequest(object sender, EventArgs e)
{
SiteHelper.Configure();
}
D.    Object lockObject = new Object();
void Application_BeginRequest(object sender, EventArgs e)
{
lock(lockObject())
{
SiteHelper.Configure();
}
}

Answer: A

QUESTION 20
You create a Visual Studio 2010 solution that includes a WCF service project and an ASP.NET project.
The service includes a method named GetPeople that takes no arguments and returns an array of Person objects.
The ASP.NET application uses a proxy class to access the service.
You use the Add Service Reference wizard to generate the class.
After you create the proxy, you move the service endpoint to a different port.
You need to configure the client to use the new service address.
In addition, you must change the implementation so that calls to the client proxy will return a List<Person> instead of an array.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A.    In the context menu for the service reference in the ASP.NET project, select the Configure
Service Reference command, and set the collection type to System.Collections.Generic.List.
B.    In the context menu for the service reference in the ASP.NET project, select the Update
Service Reference command to retrieve the new service configuration.
C.    Change the service interface and implementation to return a List<Person>
D.    Edit the address property of the endpoint element in the web.config file to use the new
service address.

Answer: AD


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