[Free] 2018(Aug) Ensurepass Microsoft 70-494 Dumps with VCE and PDF 21-30

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Recertification for MCSD: Web Applications

Question No: 21 HOTSPOT – (Topic 2)

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.)

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y

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Answer:

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Question No: 22 – (Topic 2)

You need to modify the application to meet the productId requirement. What should you do?

  1. Modify the RegisterGlobalFilters method of the Global.asax.cs file as follows.

    Contract.Assumelt;ArgumentExceptiongt;(productId != 0);

  2. Modify the GetDealPrice method of ProductController as follows. Contract.Requireslt;ArgumentExceptiongt;(productId gt; 0);

  3. Modify the RegisterGlobalFilters method of the Global.asax.cs file as follows. Contract.Requireslt;ArgumentExceptiongt;(productId gt; 0);

  4. Modify the GetDealPrice method of ProductController as follows. Contract.Assumelt;ArgumentExceptiongt;(productId gt; 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:

#39;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)

Question No: 23 – (Topic 2)

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.)

  1. Add a class named Customer-Controller to the Controllers folder. Then add a method named Edit to the class.

  2. Create a new controller named Administration in the Controllers folder. Add an action named EditCustomer to the controller.

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

  4. Create a new folder named EditCustomer to the Views folder. In the new folder, create a new file named Administration.aspx.

Answer: A,B

Question No: 24 – (Topic 2)

You updated the web.config file with the HTTP run-time value required to display an alternative version of the site.

You need to ensure that the correct page displays to the users. Which code segment should you use to update the controller?

  1. If (Request.IsTabletDevice)

  2. If (Request.Browser.IsBrowser(quot;Mobilequot;))

  3. If (Request.UserAgent[quot;Tabletquot;])

  4. If (Request.Browser.IsMobileDevice)

Answer: D

Question No: 25 – (Topic 2)

You need to implement the requirements for handling IIS errors. What should you do?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: A

Question No: 26 – (Topic 2)

The GetDealPrice method must be called by using Ajax.

You need to get the price of a product by using the GetDealPrice method of the ProductController.

Which code segment should you use? (Each correct answer presents a complete solution. Choose all that apply.)

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: C,D

Question No: 27 – (Topic 2)

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. $ (quot;h1: firstquot;) .animate ({ opacity: 0 });

B. $(quot;h1:firstquot;).fadeIn(1000);

  1. $(quot;h1:firstquot;).animate({ opacity: 1 });

  2. $(quot;h1:firstquot;).fadeOut(1000);

Answer: A,D

Question No: 28 – (Topic 2)

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

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  1. Option A

  2. Option B

  3. Option C

  4. 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: #39;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)

Question No: 29 – (Topic 2)

An advertising campaign was recently launched. Some of the ads contain a link to products that no longer exist or have IDs that have changed.

You need to ensure that all product links display a product. Which code segment should you use to configure the route?

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  1. Option A

  2. Option B

  3. Option C

  4. Option D

Answer: A

Question No: 30 – (Topic 2)

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.)

  1. Mark the Product class with the DataContract attribute.

  2. Mark the public members of the Product class with the DataContractFormat attribute.

  3. Mark the Product class with the CollectionDataContract attribute.

  4. 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#39;t have to add data contract or data member attributes anymore – if you don#39;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:

->without [DataContract], you cannot define an XML namespace for your data to live in

->without [DataMember], you cannot serialize non-public properties or fields

->without [DataMember], you cannot define an order of serialization (Order=) and the DCS will serialize all properties alphabetically

->without [DataMember], you cannot define a different name for your property (Name=)

->without [DataMember], you cannot define things like IsRequired= or other useful attributes

->without [DataMember], you cannot leave out certain public properties – all public properties will be serialized by the DCS

Topic 3, Video Transcoding Service Background

You are developing a video transcoding service. This service is used by customers to upload video files, convert video to other formats, and view the converted files. This service is used by customers all over the world.

Business Requirements

The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for administrators to upload video and schedule transcoding. It also enables administrators and users to download the transcoded videos.

When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is gathered by only one system when the video upload is complete.

Customers require support for Microsoft Internet Explorer 7 and later. The application contains a header that is visible on every page.

If the logged-on user is an administrator, then the header will contain links to administrative functions. This information is read from a cookie that is set on the server. The administrative links must not be present if an error condition is present.

Technical Requirements User Experience:

->The front-end web application enables a user to view a list of videos.

->The main view of the application is the web page that displays the list of videos.

->HTML elements other than the list of videos are changed with every request requiring the page to reload.

Compatibility:

->Some customers use browsers that do not support the HTTP DELETE verb.

->These browsers send a POST request with an HTTP header of X-Delete when the intended action is to delete.

Transcoding:

->The video transcoding occurs on a set of Windows Azure worker roles.

->The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is installed, an Environment variable named transcode contains the path to the utility.

->A variable named license contains the license key. The license for the transcoding utility requires that it be unregistered when it is not in use.

->The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility can be running at any one time. If an instance of the role cannot process an additional video, it must not prevent any other roles from processing that video.

->The utility logs errors to a Logs directory under the utilities path.

->A local Azure directory resource named perf is used to capture performance data.

Development:

->Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the transcode.exe utility.

->An x509 certificate has been created and distributed to the developers for this purpose.

->Developers must be able to use only RDP and not any other administrative functions.

Application Structure

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