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New Microsoft 70-486 Exam Dumps Collection (Question 3 - Question 12)

New Questions 3

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 state information.

You need to persist the application state during the session. What should you implement?

A. A state server

B. Cookieless sessions

C. A web garden on the web servers

D. An InProc session

Answer: A

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.

Incorrect:

Not D: The InProc option is particularly dangerous in a web farm environment. For example imagine one farm machine which stores the session state but not the other. Subsequent web requests from the same user may not read the correct session state.

References: https://dotnetcodr.com/2013/07/01/web-farms-in-net-and-iis-part-5-session-state-management/

New Questions 4

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 Questions 5

You need to enable client-side validation for an ASP.NET MVC application.

Which three actions should you perform? Each correct answer presents part of the solution.

A. Attach a custom validation attribute to the model properties that the view uses.

B. Reference the jquery, jquery.validate and jquery.validate.unobtrusive script files in the view.

C. Open the web.config file at the project root, and set the values of the ClientValidationEnabled and UnobtrusiveJavaScriptEnabled keys to True.

D. For each form element, use the Validator.element() method to validate each item.

E. Add data annotations to the model properties that the view uses.

Answer: B,C,E

Explanation:

B: The validation can be implemented using jQuery and jQuery validation plug-in (jquery.validate.min.js and jquery.validate.unobtrusive.min.js).

C: When you are developing an MVC application in Visual Studio 2012 then the client-side becomes enabled by default, but you can easily enable or disable the writing of the following app setting code snippet in the web.config file.

<configuration>

<appSettings>

<add key="ClientValidationEnabled" value="true" />

<add key="UnobtrusiveJavaScriptEnabled" value="true" />

</appSettings>

</configuration>

E: The jQuery validation plug-in takes advantage of the Data Annotation attributes defined in the model, which means that you need to do very little to start using it.

New Questions 6

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<ArgumentException>(productId != 0);

B. Modify the GetDealPrice method of ProductController as follows. Contract.Requires<ArgumentException>(productId > 0);

C. Modify the RegisterGlobalFilters method of the Global.asax.cs file as follows. Contract.Requires<ArgumentException>(productId > 0);

D. Modify the GetDealPrice method of ProductController as follows. Contract.Assume<ArgumentException>(productId > 0);

Answer: B

Explanation:

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 Questions 7

You are developing an ASP.NET MVC application that enables you to edit and save a contact.

The application must not save on an HTTP GET request. You need to implement the controller.

Which two possible code segments should you use? Each correct answer presents a complete solution.

A. Option A

B. Option B

C. Option C

D. Option D

Answer: A,B

Explanation:

A: We retrieve the GET and POST methods through this.HttpContext.Request.RequestType.

B: This is the default MVC implementation of having separate methods for GET and POST via function overloading.

Incorrect:

Not D: We retrieve the GET and POST methods through this.HttpContext.Request.RequestType, not through this.HttpContext.Request["ActionName"].

New Questions 8

You need to update the routes to ensure that a product is always displayed on the product page.

Which code segment should you use?

A. Option A

B. Option B

C. Option C

D. Option D

Answer: B

New Questions 9

You need to implement the business requirements for managing customer data.

What should you do? Each correct answer presents part of the solution. Choose all that apply.

A. Add a folder named Customer to the Views folder. Then create a view inside this folder named Edit.aspx.

B. Add a folder named EditCustomer to the Views folder. Then create a view inside this folder named Catalog.aspx.

C. Add a class named CustomerController to the Controllers folder. Then add a method named Edit to the class.

D. Add a class named Catalog to the Controllers folder. Then add a method named EditCustomer to the class.

Answer: A,C

Explanation:

From scenario: One of the business requirements, is that administrators must be able to edit information about existing customers.

New Questions 10

You are designing a data-oriented application that features a variety of storage schemas. The application object model must be mapped to the various storage schemas.

You need to enable developers to manipulate the data.

Which ADO.NET data access strategy should you use? (Each correct answer presents a complete solution. Choose all that apply.)

A. LINQ to SQL

B. Entity Framework

C. DataAdapter

D. DataReader

Answer: A,B,C

New Questions 11

You are developing an ASP.NET MVC application.

The application must allow users to enter JavaScript in a feedback text box only. You need to disable request validation.

What should you do?

A. Apply and set the CausesClientSideValidation attribute on the text box to FALSE.

B. Apply and set the ValidateInput attribute on the text box to FALSE.

C. Use the HttpRequest.Unvalidated property to read the unvalidated form value.

D. Use the HttpRequest.Form property to read the unvalidated form value.

Answer: C

Explanation:

The HttpRequest.Unvalidated property gets the HTTP request values without triggering request validation.

Request validation checks for HTML markup and script that might indicate a potential cross-site scripting attack. By default, all values are checked using request validation and if any values contain markup or script, ASP.NET throws an HttpRequestValidationException exception. Use this method if you anticipate that the request will contain markup (for example, you are allowing users to post content that contains markup) and you want to get the raw value of a request.

References: https://msdn.microsoft.com/en- us/library/system.web.httprequest.unvalidated.aspx

New Questions 12

You are implementing a website redesign of an existing website that provides historical weather condition maps.

The current layout resembles the graphic in the exhibit. (Click the Exhibit button.)

Year selection is implemented as a set of links, which causes the page to reload when the user changes the year. The year selection HTML is contained in a div with an id of "year- selector".

You need to modify the page so that the user can change the year without the page reloading.

You also need to ensure that there is minimal change to the design of the page. Which code segment should you use?

A. Option A

B. Option B

C. Option C

D. Option D

Answer: D

Explanation:

HTML5 slider contains min and max properties:

* min Minimum value of the range. Default minimum value is 0.

* maxMaximum value of the range. Default maximum value is 100. Incorrect:

Not A: HTML5 slider contains "range" property, but it used for enabling and configuring range selection in slider, not for setting min and max possible values.

References: http://www.html5tutorial.info/html5-range.php

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