Exam Ref
Previous Question

Question 104

Next Question

You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used by Olympic marathon runners to log data about training runs.
  • The application stores date, distance, and duration information about a user's training runs.
  • The user can view, insert, edit, and delete records.
  • The application must be optimized for accessibility.
  • All times must be displayed in the user's local time.
Data Access:
Database access is handled by a public class named RunnerLog.DataAccess.RunnerLogDb.
All data retrieval must be done by HTTP GET and all data updates must be done by HTTP POST.
Layout:
All pages in the application use a master layout file named \Views\Shared\_Layout.cshtml.
Models:
The application uses the \Models\LogModel.cs model.
Views:
All views in the application use the Razor view engine.
Four views located in \Views\RunLog are named:
  • _CalculatePace.cshtml
  • EditLog.cshtml
  • GetLog.cshtml
  • InsertLog.cshtml
The application also contains a \Views\Home\Index.cshtml view.
Controllers:
The application contains a \Controllers\RunLogController.cs controller.
Images:
A stopwatch.png image is located in the \Images folder.
Videos:
A map of a runner's path is available when a user views a run log. The map is implemented as an Adobe Flash application and video. The browser should display the video natively if possible, using H264, Ogg, or WebM formats, in that order. If the video cannot be displayed, then the Flash application should be used.
Security:
You have the following security requirements:
  • The application is configured to use forms authentication.
  • Users must be logged on to insert runner data.
  • Users must be members of the Admin role to edit or delete runner data.
  • There are no security requirements for viewing runner data.
  • You need to protect the application against cross-site request forgery.
  • Passwords are hashed by using the SHA1 algorithm.
RunnerLog.Providers.RunLogRoleProvider.cs contains a custom role provider.
Relevant portions of the application files follow. (Line numbers are included for reference only.)

Background

You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used by Olympic marathon runners to log data about training runs.

Business Requirements

  • The application stores date, distance, and duration information about a user's training runs.
  • The user can view, insert, edit, and delete records.
  • The application must be optimized for accessibility.
  • All times must be displayed in the user's local time.

Technical Requirements

Data Access:
Database access is handled by a public class named RunnerLog.DataAccess.RunnerLogDb.
All data retrieval must be done by HTTP GET and all data updates must be done by HTTP POST.
Layout:
All pages in the application use a master layout file named \Views\Shared\_Layout.cshtml.
Models:
The application uses the \Models\LogModel.cs model.
Views:
All views in the application use the Razor view engine.
Four views located in \Views\RunLog are named:
  • _CalculatePace.cshtml
  • EditLog.cshtml
  • GetLog.cshtml
  • InsertLog.cshtml
The application also contains a \Views\Home\Index.cshtml view.
Controllers:
The application contains a \Controllers\RunLogController.cs controller.
Images:
A stopwatch.png image is located in the \Images folder.
Videos:
A map of a runner's path is available when a user views a run log. The map is implemented as an Adobe Flash application and video. The browser should display the video natively if possible, using H264, Ogg, or WebM formats, in that order. If the video cannot be displayed, then the Flash application should be used.
Security:
You have the following security requirements:
  • The application is configured to use forms authentication.
  • Users must be logged on to insert runner data.
  • Users must be members of the Admin role to edit or delete runner data.
  • There are no security requirements for viewing runner data.
  • You need to protect the application against cross-site request forgery.
  • Passwords are hashed by using the SHA1 algorithm.
RunnerLog.Providers.RunLogRoleProvider.cs contains a custom role provider.
Relevant portions of the application files follow. (Line numbers are included for reference only.)

Application Structure

3.4.3 Question

Multiple Choices

You are the lead developer on a team that has been working on a large website for months, and several controllers are getting unwieldy. You do not have that problem with views and models because most of your communications are through AJAX to display snippets of information on the UI.

What changes can best help you solve your problem? (Choose all that apply.)

  • A. Create partial classes for the controllers that have AJAX functionality to create a set of Controller.Ajax.cs files. Put the AJAX-specific functionality in those files.
  • B. Create an area called AJAX. Move all controllers, models, and views into the area.
  • C. Create an area called AJAX. Move the specific AJAX functionality into the Controllers directory and leave the Views and Models directories empty.
  • D. Create a new ASP.NET MVC 4 application project. Move the AJAX functionality into that so that it will be more responsive.

Answer:

AC
Explanation
A. Correct: Creating partial classes offers some relief to the problem that you are ex­periencing, although not as much as a more-functional separation such as offered by areas. You do not have to make any UI changes, however.
B. Incorrect: You do not want or need to move any views or models. The code clutter is due to the small discrete actions that support your AJAX site.
C. Correct: Your best move is to separate the AJAX components into an area. You would have to change all the calls to it, but you would achieve complete separa­tion of concern for AJAX calls.
D. Incorrect: This would be too drastic a change. It would require a complete change, from deployment to testing, throughout the entire application stack.