TS: Web Applications Development with Microsoft .NET Framework 4: 70-515 Exam Premium File as PDF & Test Engine

You create a new ASP.NET MVC 2 Web application.
The following default routes are created in the Global.asax.cs file. (Line numbers are included for reference
only.)
01 public static void RegisterRoutes(RouteCollection routes)
02 {
03 routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
05 routes.MapRoute("Default", "{controller}/{action}/{id}", new {controller
= "Home", action = "Index", id = ""});
06 }
You implement a controller named HomeController that includes methods with the following signatures.
public ActionResult Index()
public ActionResult Details(int id)
public ActionResult DetailsByUsername(string username)
You need to add a route to meet the following requirements.
The details for a user must to be displayed when a user name is entered as the path by invoking the
DetailsByUsername action.
User names can contain alphanumeric characters and underscores, and can be between 3 and 20 characters long.
What should you do?

• A. Replace line 05 with the following code segment.
  routes.MapRoute("Default", "{controller}/{action}/{username}", new
  {controller = "Home", action = "DetailsByUsername", username = ""}, new
  {username = @"\w{3,20}"});
• B. At line 04, add the following code segment.
  routes.MapRoute("Details by Username", "{id}", new {controller = "Home",
  action = "DetailsByUsername"}, new {id = @"\w{3,20}"});
• C. At line 04, add the following code segment.
  routes.MapRoute("Details by Username", "{username}", new {controller =
  "Home", action = "DetailsByUsername"}, new {username = @"\w{3,20}"});
• D. Replace line 05 with the following code segment.
  routes.MapRoute("Default", "{controller}/{action}/{id}", new {controller =
  "Home", action = "DetailsByUsername", id = ""});

You are implementing an ASP.NET Web application that retrieves data from a Microsoft SQL Server
database.
You add a page that includes the following data source control.
<asp:SqlDataSource id="sqlds" runat="server" ConnectionString="<%$ ConnectionStrings:MyDB %>" SelectCommand="SELECT * FROM Companies" />
The page is accessed frequently, but the data in the database rarely changes.
You need to cache the retrieved data so that the database is not queried each time the Web page is
accessed.
What should you do?

• A. Add the following configuration to the <system.web/> section of the web.config file.
  <caching> <sqlCacheDependency enabled="true"> <databases> <add name="MyDBCache" connectionStringName="MyDB" pollTime="120"
  />
  </databases>
  </sqlCacheDependency>
  </caching>
• B. Add the following configuration to the <system.web/> section of the web.config file.
  <caching>
  <sqlCacheDependency enabled="true" pollTime="120">
  <databases>
  <add name="MyDBCache" connectionStringName="MyDB" /> </databases> </sqlCacheDependency>
  </caching>
• C. Add the following attributes to the SqlDataSource control.
  DataSourceMode="DataSet"
  EnableCaching="True"
  CacheDuration="120"
• D. Add the following attributes to the SqlDataSource control.
  DataSourceMode="DataReader"
  EnableCaching="True"
  CacheDuration="120"

You are debugging an ASP.NET Web application by using the Visual Studio debugger.
The application is incorrectly handling a SQL Exception on the login page.
You need to break execution where the exception is thrown .
What should you do?

• A. Enable the thrown option for SqlException in Visual Studio exception configuration.
• B. Manually attach the Visual Studio debugger to Internet Explorer
• C. Set the value of the customErrors element's mode attribute to "on" in the web.config file.
• D. Enable the User-unhandled option for SqlException in Visual Studio Exception configuration.

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