Microsoft 70-486 Braindumps 2021

NEW QUESTION 1
You are developing an ASP.NET Core MVC web application that will be deployed to Microsoft Azure App Services Web App.
Scheduled downtime during deployment of new features is not permitted. You need to ensure that deployments do not result in downtime.
What should you do?

• A. Add additional upgrade domains.
• B. Use deployment slots during deployments.
• C. Convert the Web App to run in a standalone Docker container.
• D. Upgrade to a Premium App Service plan.

Answer: B

Explanation: References: https://blogs.msdn.microsoft.com/mvpawardprogram/2021/05/16/deploy-app-azure-app-service/

NEW QUESTION 2
You need to maximize performance of video delivery.
Which code segment should you use as the body of the GetVideoStream function in the Video-Controller class?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: D

NEW QUESTION 3
You are developing an ASP.NET application.
You need to minimize the amount of data in all HTTP responses. What should you do?

• A. Minify the content files.
• B. Enable compression in IIS.
• C. Host the image, JavaScript, and CSS files on Microsoft Azure Storage.
• D. Bundle the content files.

Answer: B

Explanation: Network bandwidth is a limited resource. Reducing the size of the response usually increases the responsiveness of an app, often dramatically. One way to reduce payload sizes is to compress an app's responses. Use server-based response compression technologies in IIS, Apache, or Nginx.
References:
https://docs.microsoft.com/en-us/aspnet/core/performance/response-compression?tabs=aspnetcore2x

NEW QUESTION 4
HOTSPOT
You are optimizing an Internet-facing website for search engine optimization.
You are reading a Site Analysis Report from the SEO Toolkit. The report returns warnings that indicate the website HTML lacks key information necessary for search engine indexing.
You need to improve the optimization of the site.
What should you do? (To answer, select the appropriate option from the drop-down list in the answer area.)

Answer:

Explanation:

NEW QUESTION 5
DRAG DROP
You plan a new ASP. NET MVC application.
The application uses the Model-View Controller (MVC) pattern to separate the modeling of the domain, the presentation, and the actions. This separation is based on user input into three separate classes.
You need to diagram the structural relationship between the three classes.
What should you do? To answer, drag the appropriate class to the correct location or locations. Each class name 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:

Explanation: Graphically, MVC can be shown like on image bellow:

References:
http://www.beansoftware.com/ASP.NET-Tutorials/Intro-ASP.NET-MVC.aspx

NEW QUESTION 6
HOTSPOT
You are developing an ASP.NET MVC application in Visual Studio 2012. The application supports multiple cultures.
To set the culture, the application must use the AcceptLanguage header field value sent by the client browser. You need to ensure that the application can set the culture.
You have the following markup in the web.config file:

Which markup segments should you include in Target 1, Target 2 and Target 3 to complete the markup? (To answer, select the appropriate options in the answer area.)

Answer:

Explanation:

NEW QUESTION 7
You develop an ASP.NET MVC application. The application has a controller named PeopleController.cs. The controller has an action method that returns a parent view. The parent view includes the following code. Line numbers are included for the reference only.

The application also contains a partial view named People. The parent view must display the partial view. You need to add code at line 09 to display the partial view within the parent view.
Which two code segments will achieve the goal? Each correct answer presents a complete solution.

• A. @{ Html.RenderPartial(“People”, Model);}
• B. @Html.Partial(“People”, Model)
• C. @Html.Display(“People”, Model)
• D. @Html.Raw(“People”)

Answer: B

Explanation: By default, any partial view rendered by calling @Html.Partial("PartialViewName") will get the view model passed to the parent view.
References:

NEW QUESTION 8
You are developing an ASP.NET MVC application that uses forms authentication against a third-party database.
You need to authenticate the users. Which code segment should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: D

Explanation: ASP.NET membership is designed to enable you to easily use a number of different membership providers for your ASP.NET applications.
There are two primary reasons for creating a custom membership provider.
* You need to store membership information in a data source that is not supported by the membership providers included with the .NET Framework, such as a FoxPro database, an Oracle database, or other data sources.
* You need to manage membership information using a database schema that is different from the database schema used by the providers that ship with the .NET Framework.
To implement a membership provider, you create a class that inherits the MembershipProvider abstract class from the System.Web.Security namespace.
Incorrect:
Not C: Class ProviderBase
The provider model is intended to encapsulate all or part of the functionality of multiple ASP.NET features, such as membership, profiles, and protected configuration.
References: https://msdn.microsoft.com/en-us/library/f1kyba5e.aspx

NEW QUESTION 9
You are creating a new authentication system that uses an HTTP header value. The existing authentication system must continue to operate normally.
You need to implement the custom authentication.
What should you do? (Each correct answer presents a complete solution. Choose all that apply.)

• A. Create a class derived from ActionResult and check for a valid HTTP header value in the ExecuteResult metho
• B. Change all actions to return this new class.
• C. Create an HttpHandler to check for a valid HTTP header value in the ProcessRequest method.
• D. Create an HttpModule and check for a valid HTTP header value in the AuthenticateRequest event.
• E. Create a class derived from AuthorizeAttribute and check for a valid HTTP header value in the AuthorizeCore metho
• F. Change usages of the existing AuthorizeAttribute to use the new class.

Answer: CD

NEW QUESTION 10
You are designing an MVC web application.
You need to combine two existing models to create a view. Which MVC component should you use?

• A. View
• B. Controller
• C. Model
• D. ViewModel

Answer: D

NEW QUESTION 11
You are developing an ASP.NET Core MVC web application that provides assets to external websites including images, JavaScript scripts and text files.
The external websites must be able to make full use of assets provided to them by the web application, including JavaScript asynchronous HTTP requests.
Pages that refer to the images and text files do not load. External websites are unable to use assets. You need to resolve the issues.
What should you do?

• A. Add a MVC controller and action to load the files from the folder.
• B. In the startup Configure method, call IApplicationBuilde
• C. Use StaticFiles for the folder that contains the files.
• D. In the startup ConfigureServices method, call IServiceCollectio
• E. Add DirectoryBrowser for the folder that contains the files.
• F. Mark vendor provided files as content and set the value for Copy to Output Directory to CopyAlways

Answer: B

Explanation: References:
https://docs.microsoft.com/en-us/aspnet/core/fundamentals/middleware/?view=aspnetcore-2.1&tabs=aspnetcore

NEW QUESTION 12
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 = “none”, Location = OutputCacheLocation.Client, NoStore = true)]
• B. Replace the code at line 12 with the following code segment:[OutputCache(Duration = 30, VaryByParam = “none”, Location = OutputCacheLocation.Server, NoStore = true)]
• C. Replace the code at line 07 with the following code segment:[OutputCache(Duration = 3600, VaryByParam = “none”, Location = OutputCacheLocation.Server, NoStore = false)]
• D. Replace the code at line 12 with the following code segment:[OutputCache(Duration = 3600, VaryByParam = “none”, Location = OutputCacheLocation.Client, NoStore = true)]

Answer: AB

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 client’s 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/

NEW QUESTION 13
You are developing an ASP.NET MVC application. The application uses a set of custom exceptions to log errors that occur during the execution of an action.
You need to develop a class that implements logging. Which interface should you implement?

• A. IExceptionFilter
• B. IActionFilter
• C. IClientValidatable
• D. IResultFilter

Answer: A

Explanation: Exception filters are used to apply global policies to unhandled exceptions in the MVC app. Exception Filters implement either the IExceptionFilter or IAsyncExceptionFilter interface.
Exception filters handle unhandled exceptions, including those that occur during controller creation and model binding. They are only called when an exception occurs in the pipeline.

NEW QUESTION 14
You are developing an ASP.NET Core MVC web application. The web application must meet the following requirements:
Allow users to create a user name and password.
Use cookie-based authentication.
Store user credentials in a Microsoft SQL Server database. You need to implement ASP.NET Core Identity.
How should you complete the code? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Answer:

Explanation: Box 1: UseSqlServer
Box 2: AddIdentity
Box 3: Configure
Box 4: ConfigureApplicationCookie
Box 5: UseAuthentication References:
https://docs.microsoft.com/en-us/aspnet/core/security/authentication/identity?view=aspnetcore-2.1&tabs=visual-

NEW QUESTION 15
You are developing an ASP.NET MVC application to be used on the Internet. The environment does not use Active Directory.
Users must be able to log on to the application to maintain their personal preferences. You need to use the least amount of development effort to enable users to log on. What should you do?

• A. Enable Digest authentication.
• B. Enable Windows authentication.
• C. Enable Forms authentication.
• D. Generate server SSL certificates and install them in IIS.

Answer: C

Explanation: Many Web applications require a way to restrict access to some resources (such as specific pages) so that those resources are accessible only to authenticated users. The default Web application project template for ASP.NET MVC provides a controller, data models, and views that you can use to add ASP.NET forms authentication to your application. The built-in functionality lets users register, log on and off, and change their password. For many applications, this functionality provides a sufficient level of user authentication.
Incorrect:
Not B: Windows authentication would require an Active Directory.
Windows authentication method works only if the following two conditions exist:
/ You set up your network to use the Kerberos authentication protocol that requires Active Directory.
/ You set up the computers and accounts on your network as trusted for delegation. References: https://msdn.microsoft.com/en-us/library/ff398049(VS.98).aspx

NEW QUESTION 16
HOT SPOT
You need to implement the mobile device support requirements.
How should you build the ProcessRequest method? (To answer, select the appropriate options in the answer area.)

Answer:

Explanation:

NEW QUESTION 17
You need to modify the application to meet the productId requirement. Which code segment should you use?

• A. Option A
• B. Option B
• C. Option C
• D. Option D

Answer: C

Explanation: Scenario: The value of the productId property must always be greater than 0.
Note: The Contract.Requires(Of TException) method specifies a precondition contract for the enclosing method or property, and throws an exception if the condition for the contract fails.
Syntax: 'Declaration
Public Shared Sub Requires(Of TException As Exception) ( _ condition As Boolean _) Type Parameters
TException
The exception to throw if the condition is false.
Parameters condition
Type: System.Boolean
The conditional expression to test.
Reference: Contract.Requires(Of TException) Method (Boolean)

NEW QUESTION 18
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some questions sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You develop an ASP.NET web application that is self-hosted using Open Web Interface for .NET (OWIN) in a Microsoft Azure Worker role.
The web application throws exceptions. You need to resolve the exceptions.
Solution: Use standard HttpModule and HttpHandler types. Does the solution meet the goal?

• A. Yes
• B. No

Answer: B

Explanation: Note: Open Web Interface for .NET (OWIN) defines an abstraction between .NET web servers and web applications. OWIN decouples the web application from the server, which makes OWIN ideal for self-hosting a web application in your own process, outside of IIS–for example, inside an Azure worker role.

NEW QUESTION 19
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:

Explanation: