###BeginCaseStudy###
Case Study: 2
Scenario 2
Background

You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed. The
user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the
external order database.
• OrderProcessor: An ASP.NET MVC project used for order processing and
logging order metadata.
• OrderUpload: A WCF service project used to submit order data to an external
data source.
• Shipping: A WCF service project used to acquire shipping information.
ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files:
• IExtemalQueueService.cs
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFoundException.
OrderProcessor Project:

Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace.
The project contains the following two controllers:
• InboundQueueControIler.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements:
• The GetVendorPolicy() method must enforce a 10 minute absolute cache
expiration policy.
• The GetProcessedOrders() method must return a view of the 10 most recently
processed orders.
OrderUpload Project:
The project contains two services defined in the following files:
• IUploadCallbackService.es
• UploadCallbackService.svc
Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed.
POCO classes for the Entity Model are located in the ShippingAddress.es file. The POCO
entity must be loaded by using lazy loading.
The project contains two services defined in the following files:
• IShippingService.es
• ShippingService.svc
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure
ExternalQueue\IExternalQueueService.cs

OrderProcessor\IExternalQueueService.svc

ExternalQueue\ProcessedOrderController.cs

OrderProcessor\InboundQueueController.cs

OrderUpload\IUploadCallbackService.cs

OrderUpload\UploadCallbackService.svc

Shipping\IShippingService.cs

Shipping\ShippingAddress.cs

###EndCaseStudy###

DRAG DROP
You need to create the ShippingContext class in the ShippingAddress.es file to meet the
requirements.
What should you do? (To answer, drag the appropriate code segments to the correct
location or locations in the answer area. Each code segment 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.)

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background

You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed. The
user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the
external order database.
• OrderProcessor: An ASP.NET MVC project used for order processing and
logging order metadata.
• OrderUpload: A WCF service project used to submit order data to an external
data source.
• Shipping: A WCF service project used to acquire shipping information.
ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files:
• IExtemalQueueService.cs
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFoundException.
OrderProcessor Project:

Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace.
The project contains the following two controllers:
• InboundQueueControIler.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements:
• The GetVendorPolicy() method must enforce a 10 minute absolute cache
expiration policy.
• The GetProcessedOrders() method must return a view of the 10 most recently
processed orders.
OrderUpload Project:
The project contains two services defined in the following files:
• IUploadCallbackService.es
• UploadCallbackService.svc
Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed.
POCO classes for the Entity Model are located in the ShippingAddress.es file. The POCO
entity must be loaded by using lazy loading.
The project contains two services defined in the following files:
• IShippingService.es
• ShippingService.svc
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure
ExternalQueue\IExternalQueueService.cs

OrderProcessor\IExternalQueueService.svc

ExternalQueue\ProcessedOrderController.cs

OrderProcessor\InboundQueueController.cs

OrderUpload\IUploadCallbackService.cs

OrderUpload\UploadCallbackService.svc

Shipping\IShippingService.cs

Shipping\ShippingAddress.cs

###EndCaseStudy###

DRAG DROP
The GetExternalOrders() method must use members of the EntityClient namespace to query
the database for all records in the InboundQueue entity.
You need to modify the GetExternalOrders() method to return the correct data.
What should you do? (To answer, drag the appropriate code segments to the correct
location or locations in the answer area. Each code segment 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.)

###BeginCaseStudy###
Case Study: 2
Scenario 2
Background

You are developing an ASP.NET MVC application in Visual Studio 2012 that will be used to
process orders.
Business Requirements
The application contains the following three pages.
• A page that queries an external database for orders that are ready to be processed. The
user can then process the order.
• A page to view processed orders.
• A page to view vendor information.
The application consumes three WCF services to retrieve external data.
Technical Requirements
Visual Studio Solution:
The solution contains the following four projects.
• ExternalQueue: A WCF service project used to communicate with the
external order database.
• OrderProcessor: An ASP.NET MVC project used for order processing and
logging order metadata.
• OrderUpload: A WCF service project used to submit order data to an external
data source.
• Shipping: A WCF service project used to acquire shipping information.
ExternalQueue Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The project contains two services defined in the following files:
• IExtemalQueueService.cs
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFoundException.
OrderProcessor Project:

Entity Framework is used for data access. The entities are defined in the
ProcessedOrders.edmx file as shown in the following diagram.

The classes are contained in the OrderProcessor.Entities namespace.
The project contains the following two controllers:
• InboundQueueControIler.es
• ProcessedOrderController.es
WCF service proxies to the ExternalQueue, Shipping and OrderUpload services have been
generated by using the command prompt. The ExecuteCommandProcedure() method in the
ExternalQueueService.svc file must run asynchronously.
The ProcessedOrderController controller has the following requirements:
• The GetVendorPolicy() method must enforce a 10 minute absolute cache
expiration policy.
• The GetProcessedOrders() method must return a view of the 10 most recently
processed orders.
OrderUpload Project:
The project contains two services defined in the following files:
• IUploadCallbackService.es
• UploadCallbackService.svc
Data Access is maintained in a file named UploadOrder.es.
Shipping Project:
Entity Framework is used for data access. The entities are defined in the
ExternalOrders.edmx file as shown in the following diagram.

The Custom Tool property for ExternalOrders.edmx has been removed.
POCO classes for the Entity Model are located in the ShippingAddress.es file. The POCO
entity must be loaded by using lazy loading.
The project contains two services defined in the following files:
• IShippingService.es
• ShippingService.svc
The IShippingService contract must contain an operation that receives an order number as a
parameter. The operation must return a class named ShippingInfo that inherits from a class
named State.
Application Structure
ExternalQueue\IExternalQueueService.cs

OrderProcessor\IExternalQueueService.svc

ExternalQueue\ProcessedOrderController.cs

OrderProcessor\InboundQueueController.cs

OrderUpload\IUploadCallbackService.cs

OrderUpload\UploadCallbackService.svc

Shipping\IShippingService.cs

Shipping\ShippingAddress.cs

###EndCaseStudy###

The QueueDetail entity type must inherit from the InboundQueue entity type in the
ExternalQueue service project using table-per-type inheritance.
You need to modify the entities in the designer.
What should you do? (Each correct answer presents part of the solution. Choose all that
apply.)

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

DRAG DROP
You need to ensure that the transcode.exe utility is installed before the worker role starts.
How should you implement the startup task? (To answer, drag the appropriate values to the
correct element or attribute. Each value 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.)

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

Customers download videos by using HTTP clients that support various content encodings.
You need to configure caching on the DownloadVideo action to maximize performance.
Which attribute should you add?

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

You need to ensure that developers can connect to a Microsoft Azure role by using RDP.
What should you do?

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

You need to ensure that all the MVC controllers are secure.
Which code segment should you use as the body for the CreateController method in
AdminVerifierFactory.es?

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

You need to ensure that all customers can delete videos regardless of their browser
capability.
Which code segment should you use as the body of the SendAsync method in the
DeleteHandler class?

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

You need to ensure that all the MVC controllers are secure.
Which code segment should you use as the body for the CreateController method in
AdminVerifierFactory.es?

###BeginCaseStudy###
Case Study: 3
Scenario 3
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
administrations 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 Microsoft 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 pert 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
TranscodeWorkerRole.es

ThumbnailGenerator.es

VideoController.es

DeleteHdiidler.es

VideoAdminAttributes.es

AdminVerifierFactory.es

###EndCaseStudy###

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.)