###BeginCaseStudy###
Case Study: 1
Scenario 1
Background
You are developing a flight information consolidation service. The service retrieves flight
information from a number of sources and combines them into a single data set. The
consolidated flight information is stored in a SQL Server database. Customers can query
and retrieve the data by using a REST API provided by the service. The service also offers
access to historical flight information. The historical flight information can be filtered and
queried in an ad hoc manner. The service runs on a Windows Azure Web Role. SSL is not
used.
Business Requirements
• A new data source for historical flight information is being developed by a contractor
located on another continent.
• If a time zone is not specified, then it should be interpreted as Coordinated Universal
Time (UTC).
• When you upgrade a service from a staging deployment to a production deployment,
the time that the service is unavailable must be minimized.
• The default port must be used for HTTP.
Technical Requirements
The existing sources of flight information and the mechanism of exchange are listed below.
• Blue Yonder Airlines provides flight information in an XML file.
• Consolidated Messenger provides flight information in a Microsoft Access database
that is uploaded every 12 hours to the service using SFTP. The company uses port 22 for
SFTP.
• Margie’s Travel provides and consumes flight information using serialized ADO.NET
DataSets. Data is periodically synced between the service and Margie’s Travel.
• Trey Research provides data from multiple sources serialized in proprietary binary
formats. The data must be read by using .NET assemblies provided by Trey Research. The
assemblies use a common set of dependencies. The current version of the Trey Research
assemblies is 1.2.0.0. All assemblies provided by Trey Research are signed with a key pair
contained in a file named Trey.snk, which Trey Research also supplies.
• The application specification requires that any third-party assemblies must have
strong names.
Application Structure




###EndCaseStudy###

Transformed historical flight information provided by the RemoteDataStream() method must
be written to the response stream as a series of XML elements named Flight within a root
element named Flights. Each Flight element has a child element named FlightName that
contains the flight name that starts with the two-letter airline prefix. You need to implement
the StreamHistoricalFlights() method so that it minimizes the amount of memory allocated.

Which code segment should you use as the body of the StreamHistoricalFlights() method in
the HistoricalDataLoader.es file?

###BeginCaseStudy###
Case Study: 1
Scenario 1
Background
You are developing a flight information consolidation service. The service retrieves flight
information from a number of sources and combines them into a single data set. The
consolidated flight information is stored in a SQL Server database. Customers can query
and retrieve the data by using a REST API provided by the service. The service also offers
access to historical flight information. The historical flight information can be filtered and
queried in an ad hoc manner. The service runs on a Windows Azure Web Role. SSL is not
used.
Business Requirements
• A new data source for historical flight information is being developed by a contractor
located on another continent.
• If a time zone is not specified, then it should be interpreted as Coordinated Universal
Time (UTC).
• When you upgrade a service from a staging deployment to a production deployment,
the time that the service is unavailable must be minimized.
• The default port must be used for HTTP.
Technical Requirements
The existing sources of flight information and the mechanism of exchange are listed below.
• Blue Yonder Airlines provides flight information in an XML file.
• Consolidated Messenger provides flight information in a Microsoft Access database
that is uploaded every 12 hours to the service using SFTP. The company uses port 22 for
SFTP.
• Margie’s Travel provides and consumes flight information using serialized ADO.NET
DataSets. Data is periodically synced between the service and Margie’s Travel.
• Trey Research provides data from multiple sources serialized in proprietary binary
formats. The data must be read by using .NET assemblies provided by Trey Research. The
assemblies use a common set of dependencies. The current version of the Trey Research
assemblies is 1.2.0.0. All assemblies provided by Trey Research are signed with a key pair
contained in a file named Trey.snk, which Trey Research also supplies.
• The application specification requires that any third-party assemblies must have
strong names.
Application Structure




###EndCaseStudy###

Errors occasionally occur when saving data using the FlightlnfoContext ADO.NET Entity
Framework context. Updates to the data are being lost when an error occurs. You need to
ensure that data is still saved when an error occurs by retrying the operation. No more than
five retries should be performed. With which code segment should you replace the body of
the SaveChanges() method in the FlightInfoContext.es file?

###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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

The GetExternalOrder() method in the ExternalQueueService service is throwing a runtime
error. The method must query the database for a record that matches the orderNum
parameter passed to the method. You need to modify the queryString string to retrieve the
record. With which code segment should you replace line EQ64?

DRAG DROP

###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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

The GetVendorPolicy() private method in the ProcessedOrderController controller is
returning a CacheItemPolicy object with default values. The returned policy must expire if the
external file located at C:\Triggers\VendorTrigger.txt has been modified or the timeout
outlined in the technical requirements is reached. You need to return the policy. How should
you build the method? (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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

You need to modify the ExecuteCommandProcedure() method to meet the technical
requirements. Which code segment should you use?

DRAG DROP

###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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

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.)

DRAG DROP

###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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

You add a class named ShippingInfo. You need to modify the IShippingService interface and
the ShippingInfo class to meet the technical 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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

The DeleteExternalOrder() method in the ExternalQueueService service is not throwing a
FaultException exception as defined by the FaultContractAttribute attribute in the
IExternalQueueService.cs file. You need to throw the FaultException exception. Which code
segments can you insert at line EQ45 to achieve this goal? (Each correct answer presents a
complete solution. Chose all that apply)

DRAG DROP

###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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

The GetQueueItems() action in the InboundQueueController controller is not populating the
view with data. The action must populate the view with data by calling the
GetExternalOrders() method in the ExternalQueueService service using the ChannelFactory
class. You need to modify the action to populate the view with 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.)

DRAG DROP

###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.
• IExternalQueueService.es
• ExternalQueueService.svc.
The ExternalQueue.Helpers namespace contains a definition for a class named
OrderNotFound Exception.
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.
• InboundQueueController.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







###EndCaseStudy###

You need to complete the GetProcessedOrders() action in the ProcessedOrderController
controller 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.)