Achieve New Updated (September) Microsoft 70-491 Examination Questions Topic 5, Scenario 5

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Topic 5, Scenario 5

 

Background

You are developing a Windows Store style e-reader app.

 

Business Requirements

Users must be able to upload e-books and documents and download them to e-reader devices.

Users must be able to set a password to restrict access to their e-books and documents.

Users must be able to create and store encrypted metadata about their e-books and documents.

The app must replace system-generated error messages with custom-defined messages. These custom messages must come from a list of approved text.

User actions such as printing pages, saving users’ current locations in documents, and taking notes should be enabled from buttons on an AppBar control.

The app must provide trial functionality that will expire after 14 days. If the app expires while it is running, the app must display an expiration message to the user and prompt the user to purchase the app.

 

Technical Requirements

General:

Configuration files must be read-only. All user settings must be stored in the Contoso Settings Service.

The SocialPoller background task must run the code in the DoWork() method to collect content from the Contoso feed.

The UI must always remain responsive to user actions.

 

Security:

Secured e-book and document passwords must to be encrypted so that only the user who created the passwords can retrieve the metadata associated to the e- books and documents.

The system must log all exceptions through the auditing object and notify technicians of the issue.

 

Storage:

The app must cache the next two chapters to the local device for users to read while disconnected from the network. This cache must be persisted if a reboot is performed.

User state such as the current location in an e-book or document must be stored in the Microsoft Azure SQL database.

User settings such as font sizes and colors must be stored through the Contoso Settings Service.

 

Network:

Communication between the app and e-book vendors must occur over an encrypted communication channel.

Communication must use certificates to enable the SSL connection.

 

Trial Functionality:

The isPrintEnabled variable must determine if the user can print.

The isMarketEnabled variable must determine if the user can use the marketplace.

The isTrialEnabled variable must determine if the application is still in trial mode.

 

Printing:

The default printing options are portrait orientation and grayscale color mode.

The app must enable the user to select the media size and printing orientation.

 

SocialPoller.es

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Auditor.cs

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ContentPage.es

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Book.cs

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SocialPost.es

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Page1.xaml.es

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App.xaml.cs

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QUESTION 1

DRAG DROP

You need to meet the app caching requirements.

 

Which caching technique should you use in each scenario?

 

To answer, drag the appropriate technique to the correct scenario. Each technique 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.

 

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Correct Answer:

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QUESTION 2

You need to protect the metadata for the secure documents.

 

Which protection descriptor should you use for the DataProtectionProvider object?

 

A.

SID

B.

WEBCREDENTIALS=userrpassword

C.

LOCAL=user

D.

USER=current

 

Correct Answer: C

Explanation:

http://msdn.microsoft.com/en-us/library/windows/apps/windows.security.cryptography.dataprotection.dataprotectionprovi der.aspx

 

 

QUESTION 3

You need to enable the capabilities that allow communication according to the technical requirements.

&n

bsp;

Which capabilities should you enable? (Each correct answer presents part of the solution. Choose all that apply.)

 

A.

Shared User Certificates

B.

SSL Certificates

C.

Internet (Client)

D.

Default Windows Credentials

 

Correct Answer: BC

Explanation:B: From scenario:

Communication between the app and e-book vendors must occur over an encrypted communication channel.

Communication must use certificates to enable the SSL connection.

 

C:

clip_image017

 

http://msdn.microsoft.com/en-us/library/windows/apps/Hh770532.aspx

http://msdn.microsoft.com/en-us/library/windows/apps/Hh986970.aspx

 

 

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