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New Microsoft 70-486 Exam Dumps Collection (Question 2 - Question 11)
Q2. You are developing an ASP.NET MVC application that provides instant messaging capabilities to customers.
You have the following requirements:
You need to design the application to meet the requirements. What should you do?
A. Configure polling from the browser.
B. Implement long-running HTTP requests.
C. Implement WebSockets protocol on the client and the server.
D. Instantiate a MessageChannel object on the client.
Answer: D
Q3. You need to implement client-side animations according to the business requirements.
Which line of code should you use? (Each correct answer presents a complete solution. Choose all that apply.)
A. $("body h1:nth-child(1)").fadeIn(1000);
B. $("body h1:nth-child(1)").fadeOut(1000);
C. $("body h1:nth-child(1)").animate({ opacity: 0 });
D. $("body h1:nth-child(1)").animate({ opacity: 1 });
Answer: B,C
Explanation:
From scenario: Information about the first product on the product page must fade out over time to encourage the user to continue browsing the catalog.
Q4. You are developing an ASP.NET MVC application in Visual Studio 2012. The application supports multiple cultures.
The application contains three resource files in the Resources directory:
Each file contains a public resource named Title with localized translation.
The application is configured to set the culture based on the client browser settings.
The application contains a controller with the action defined in the following code segment. (Line numbers are included for reference only.)
You need to set ViewBag.Title to the localized title contained in the resource files.
Which code segment should you add to the action at line 03?
A. ViewBag.Title = HttpContext.GetGlobalResourceObuect("MyDictionary", "Title");
B. ViewBag.Title = HttpContext.GetGlobalResourceObject("MyDictionary", "Title",new System.Globalization.CultureInfo("en"));
C. ViewBag.Title = Resources.MyDictionary.Title;
D. ViewBag.Title = HttpContext.GetLocalResourceObject("MyDictionary", "Title");
Answer: C
Explanation:
Only the Resources class is used.
Q5. You need to add a method to the ProductController class to meet the exception handling requirements for logging.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q6. You are developing an ASP.NET MVC application. The application is deployed in a web farm and is accessed by many users.
The application must handle web server failures gracefully. The servers in the farm must share the short-term state information.
You need to persist the application state during the session. What should you implement?
A. ASP.NET session state
B. A local database
C. A state server
D. Profile properties
Answer: C
Explanation:
ASP.NET session state service provides a somewhat slower service than the in-process variant as we need to make calls to a remote server. All session data is stored in memory so shutting down the state machine will wipe out all session data as well.
References: https://dotnetcodr.com/2013/07/01/web-farms-in-net-and-iis-part-5-session-state-management/
Q7. You are developing an ASP.NET MVC web application in Visual Studio 2012. The application requires several thousand content files. All content is hosted on the same IIS
instance as the application.
You detect performance issues when the application starts. You need to resolve the performance issues.
What should you do?
A. Implement HTTP caching in the ASP.NET MVC controllers.
B. Combine the content files by using ASP.NET MVC bundling.
C. Install a second IIS instance.
D. Move the content to a Windows Azure CDN.
Answer: B
Explanation:
Bundling is a new feature in ASP.NET 4.5 that makes it easy to combine or bundle multiple files into a single file. You can create CSS, JavaScript and other bundles. Fewer files means fewer HTTP requests and that can improve first page load performance.
References: https://www.asp.net/mvc/overview/performance/bundling-and-minification
Q8. You are developing an ASP.NET MVC web application for viewing a list of contacts. The application is designed for devices that support changes in orientation, such as tablets and smartphones. The application displays a grid of contact tiles in portrait mode.
When the orientation changes to landscape, each tile in the grid expands to include each contact's details. The HTML that creates the tiled interface resembles the following markup.
The CSS used to style the tiles in landscape mode is as follows.
If this CSS is omitted, the existing CSS displays the tiles in portrait mode.
You need to update the landscape-mode CSS to apply only to screens with a width greater than or equal to 500 pixels.
Which code segment should you use?
A. @media screen and (width >= 500px) {u2026}
B. @media screen and (min-width: 500px) {u2026}
C. @media screen(min-width: 500px, max-width: 1000px) {u2026}
D. @media resolution(min-width: 500px) {u2026}
Answer: B
Explanation:
http://www.javascriptkit.com/dhtmltutors/cssmediaqueries.shtml
Q9. 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. <canvas id="myFooter">
@(Request,Browser.JavaApplets ? new HtmlString("London 2012") : null)
</canvas>
B. <canvas id="myFooter">London 2012</canvas>
C. <canvas id="myCanvas">London 2012</canvas>
D. <canvas id="myCanvas"></canvas>
<p>London 2012</p>
Answer: C
Q10. You are developing an ASP.NET MVC application that will be deployed on a web farm.
Passwords must be stored in the web.config file and must not be readable or in a format that is easily decodable.
You need to encrypt the passwords that are stored in the web.config file. Which command-line tool should you use?
A. Aspnet_regiis.exe
B. Aspnet_regbrowsers.exe
C. Aspnet_setreg.exe
D. Aspnet_compiler.exe
Answer: A
Explanation:
References: http://msdn.microsoft.com/en-us/library/zhhddkxy(v=vs.100).aspx
Q11. You are developing an ASP.NET MVC application that delivers real-time game results to sports fans. The application includes the following code. Line numbers are included for reference only.
The source data for the game results is updated every 30 seconds. Testers report the following issues with the application:
You need to correct the performance issues.
Which two changes should you make to the code? Each correct answer presents part of the solution.
A. Replace the code at line 07 with the following code segment:[OutputCache(Duration =
30, VaryByParam = u201cnoneu201d, Location = OutputCacheLocation.Client, NoStore = true)]
B. Replace the code at line 12 with the following code segment:[OutputCache(Duration = 30, VaryByParam = u201cnoneu201d, Location = OutputCacheLocation.Server, NoStore = true)]
C. Replace the code at line 07 with the following code segment:[OutputCache(Duration = 3600, VaryByParam = u201cnoneu201d, Location = OutputCacheLocation.Server, NoStore = false)]
D. Replace the code at line 12 with the following code segment:[OutputCache(Duration = 3600, VaryByParam = u201cnoneu201d, Location = OutputCacheLocation.Client, NoStore = true)]
Answer: A,B
Explanation:
B: They report delays in seeing the latest game results. This is the output of the GetResults() function. We decrease the Duration in the cache for this function from 3600 to
30. This is one line 12.
A: They report seeing other user's name when they sign in to the application. This is the output of the GetUserInfo() function. We should change the OutputCacheLocation of the caching of this function from Server to Client. This is on line 7.
Note: The OutputCacheLocation.Client option indicates that the content should be cached at the requesting client. Any requests for the same resource made from the same client within the expiry period, will be served out the clientu2021s cache, without a network request being made to the server.
The OutputCacheLocation.Server option indicates that the content will be cached at the origin server. This content will be served for subsequent requests made by the initial client and any other client requesting the same resource within the expiry period.
References: https://growlycode.wordpress.com/2014/01/10/mvc4-outputcache-location- basics/
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