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New Microsoft 70-486 Exam Dumps Collection (Question 6 - Question 15)
Q6. 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)
Q7. You are developing an ASP.NET MVC web application for viewing a photo album. The application is designed for devices that support changes in orientation, such as tablets and smartphones. The application displays a grid of photos in portrait mode.
When the orientation changes to landscape, each tile in the grid expands to include a description. The HTML that creates the gallery interface resembles the following markup.
If this CSS is omitted, the existing CSS displays the tiles in landscape mode.
You need to update the portrait mode CSS to apply only to screens with a width less than 500 pixels.
Which code segment should you use?
A. @media resolution(max-width: 500px) {. . .}
B. @media screen(min-width: Opx, max-width: 500px) {. . .}
C. @media screen and (width <= 500px) {. . .}
D. @media screen and (max-width: 500px) {. . .}
Answer: D
Explanation:
Screen is used for computer screens, tablets, smart-phones etc.
max-width is the maximum width of the display area, such as a browser window. References: http://www.w3schools.com/cssref/css3_pr_mediaquery.asp
Q8. You are developing an ASP.NET MVC application to be used on the Internet. The environment uses Active Directory with delegation to access secure resources.
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 Forms authentication
B. Enable Windows authentication
C. Generate server SSL certificates and install them in IIS
D. Enable Digest authentication
Answer: B
Explanation:
Requirements for Delegation
Delegation relies on Integrated Windows authentication to access resources. There is no limit on the number of computers that you can delegate your account -- you must correctly configure each of them. The Integrated 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://support.microsoft.com/en-us/kb/810572
Q9. You are developing an ASP.NET application that runs on Windows Server 2012. An exception is preventing a page from rendering.
You need to view the trace information for the page.
Which two actions should you perform? Each correct answer presents part of the solution.
A. Add the following markup segment to the web.config file: <trace enabled-'"true,*/>
B. Load the trace.axd page from the root of the website.
C. Add the traceEnable element to the Internet Information Services (IIS) MetaBase section for the application.
D. Add the following markup segment to the web.config file:<trace mostRecent-"true"/>
Answer: A,B
Q10. You are designing a Windows Communication Foundation (WCF) service that uses the Product class.
You need to update the class to meet the storage requirement.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
A. Mark the Product class with the DataContract attribute.
B. Mark the public members of the Product class with the DataContractFormat attribute.
C. Mark the Product class with the CollectionDataContract attribute.
D. Mark the public members of the Product class with the DataMember attribute.
Answer: A,D
Explanation: So as of .NET 3.5 SP1, you don't have to add data contract or data member attributes anymore - if you don't then the data contract serializer will serialize all public properties on your class, just like the XML serializer would.
HOWEVER: by not adding those attributes, you lose a lot of useful capabilities:
u2711 without [DataContract], you cannot define an XML namespace for your data to live in
u2711 without [DataMember], you cannot serialize non-public properties or fields
u2711 without [DataMember], you cannot define an order of serialization (Order=) and the DCS will serialize all properties alphabetically
u2711 without [DataMember], you cannot define a different name for your property (Name=)
u2711 without [DataMember], you cannot define things like IsRequired= or other useful attributes
u2711 without [DataMember], you cannot leave out certain public properties - all public properties will be serialized by the DCS
Q11. 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(u201cPeopleu201d, Model);}
B. @Html.Partial(u201cPeopleu201d, Model)
C. @Html.Display(u201cPeopleu201d, Model)
D. @Html.Raw(u201cPeopleu201d)
Answer: B
Explanation:
By default, any partial view rendered by calling @Html.Partial("PartialViewName") will get the view model passed to the parent view.
Q12. You are developing a controller for an ASP.NET MVC application that manages message board postings.
The security protection built in to ASP.NET is preventing users from saving their HTML. You need to enable users to edit and save their HTML while maintaining existing security
protection measures.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: B
Q13. You are developing an ASP.NET MVC application.
The application must allow users to enter HTML in a feedback text box only. You need to disable request validation.
What should you do?
A. Use the HttpRequest.Form property to read the unvalidated form value.
B. Apply and set the Validatelnput attribute on the controller action to FALSE.
C. Use the HttpRequest.Unvalidated property to read the unvalidated form value.
D. Apply and set the CausesValidation attribute on the controller action to FALSE.
Answer: C
Explanation:
The HttpRequest.Unvalidated Property provides access to HTTP request values without triggering request validation.
Q14. 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/
Q15. 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
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