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Share some MCSD 70-486 exam questions and answers below.
You are developing an application that uses many small images for various aspects of the interface. The application responds slowly when additional resources are being accessed. You need to improve the performance of the application.What should you do?
A. Preload all the images when the client connects to ensure that the images are cached.
B. Combine all the images into a single image and use CSS to create sprites.
C. Host all images on an alternate server and provide a CDN.
D. Convert the images to .png file format and stream all images on a single connection.
Answer: C

You are designing a distributed application. The application must store secure information that is specific to an individual user. The data must be automatically purged when the user logs off. You need to save transient information in a secure data store.Which data store should you use?
A. Session state
B. Database storage
C. Profile properties
D. Application state
Answer: B

Topic 2, Web Application

Background
You are developing an online shopping web application.

Business Requirements
• A user is not required to provide an email address. If a user enters an email address, it must be verified to be a valid email address.
• Information about the first product on the product page must fade out over time to encourage the user to continue browsing the catalog.
• Administrators must be able to edit information about existing customers.
• Administrators also must be able to specify a default product on the product page.

Technical Requirements
General:
• The web store application is in a load-balanced web farm. The load balancer is not configured to use server affinity.
• The web store application is an ASP.NET MVC application written in Visual Studio 2012.

Products:
• The value of the productId property must always be greater than 0.
• The Products page for mobile devices must display to mobile users. The Products page for desktop devices must display to desktop users.

Storage:
• The data must be stored in a serialized XML data format.
• Serialized objects must be schema-independent.

Exception handling:
• Exceptions originating from IIS must display a page with support contact information.
• Some page links expire, and users who access these links encounter 404 errors.
• Exceptions must be logged by using the WriteLog method of the Utility class.

Browser and device support:
• The application must support image format conversions from .bmp to .jpeg for mobile devices.
• The application must support image format conversions from .bmp to .png for desktop devices.

Application Structure

You need to ensure that new customers enter a valid email address.
Which code should you use? (Each correct answer presents part of the solution. Choose all that apply.)

A. Option A
B. Option B
C. Option C
D. Option D
Answer: A, D

You need to modify the application to meet the productId requirement.
What should you do?
A. Modify the RegisterGlobalFilters method of the Global.asax.cs file as follows.
Contract.Assume(productId != 0);
B. Modify the GetDealPrice method of ProductController as follows.
Contract.Requires(productId > 0);
C. Modify the RegisterGlobalFilters method of the Global.asax.cs file as follows. Contract.Requires(productId > 0);
D. Modify the GetDealPrice method of ProductController as follows.
Contract.Assume(productId > 0);
Answer: B

Topic 1, Olympic Marathon

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

DRAG DROP
You need to implement the Views\RunLog\_CalculatePace.cshtml partial view from Views\Runlog \GetLog.cshtml to display the runner's average mile pace.
How should you implement the view? (To answer, drag the appropriate code segments to the correct location or locations. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Answer:

2 .DRAG DROP
You need to implement security according to the business requirements.
How should you modify RunLogController? (To answer, drag the appropriate code segment to the correct location or locations. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Answer:

3 .You need to make the "Distance" header of the table bold in the Views/RunLog/GetLog.cshtml view.
Which code segment should you use?
A. table>tr{ font-weight: bold; }
B. table>th:last-child{ font-weight: bold; }
C. table+first-child{ font-weight: bold; }
D. table>tr>th:nth-child (2) { font-weight: bold; }
Answer: D

4 .You need to extend the edit functionality of RunLogController.
Which code segment should you use?

A. Option A
B. Option B
C. Option C
D. Option D
Answer: C

5 .HOTSPOT
You need to implement the map of the runners' paths.
How should you build the video viewer? (To answer, select the appropriate options in the answer area.)

Answer:

6 .HOTSPOT
You need to ensure that only valid parameters are passed to the EditLog action.
How should you build the route? (To answer, select the appropriate options in the answer area.)

Answer:

7 .DRAG DROP
You need to ensure that the application uses RunLogRoleProvider custom role provider.
How should you modify the web.config file? (To answer, drag the appropriate line of code to the correct location or locations. Each line of code may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Answer:

8 .DRAG DROP
You need to ensure that only valid parameters are passed to the EditLog action.
How should you build the route? (To answer, drag the appropriate code segments to the correct location or locations. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.)

Answer:

9 .If the canvas element is supported by the client browser, the application must display "London 2012" in the footer as text formatted by JavaScript at the end of the _Layout.cshtml file.
You need to modify the layout to ensure that "London 2012" is displayed as either formatted text or as plain text, depending on what the client browser supports.
Which code segment should you add?
A.

London 2012

Answer: C

10 .You need to add an action to RunLogController to validate the users' passwords.
Which code segment should you use?

A. Option A
B. Option B
C. Option C
D. Option D
Answer: B

11 .You need to make all of the rows in the table bold in the Views/RunLog/GetLog.cshtml view.
Which code segment should you use?
A. Table > th:last-child { font-weight: bold; }
B. Table+first-child{ font-weight: bold; }
C. Table>tr>th:nth-child{2){font-weight: bold; }
D. Table > tr {font-weight: bold ;}
Answer: D

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