###BeginCaseStudy###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

DRAG DROP
You need to configure the Windows Azure service definition to enable Consolidated Messenger to
upload files.
What should you do? (To answer, drag the appropriate configuration items to the correct location or
locations. Each configuration item 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###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

HOTSPOT
You need to deploy the application to the Windows Azure production environment to meet the business
requirements.
What should you do? (To answer, select the appropriate button in the answer area.)

###BeginCaseStudy###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

You need to recommend a data access technology to the contractor to retrieve data from the new data
source.
Which data access technology should you recommend?

###BeginCaseStudy###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

DRAG DROP
Flight information data provided by Margie’s Travel is updated both locally and remotely. When the data
is synced, all changes need to be merged together without causing any data loss or corruption.
You need to implement the Sync() method in the MargiesTravelSync.es file.
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###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

DRAG DROP
Historical flight information data will be stored in Windows Azure Table Storage using the FlightInfo class
as the table entity.
There are millions of entries in the table. Queries for historical flight information specify a set of airlines
to search and whether the query should return only late flights. Results should be ordered by flight
name.You need to specify which properties of the FlightInfo class should be used at the partition and row keys
to ensure that query results are returned as quickly as possible.
What should you do? (To answer, drag the appropriate properties to the correct location or locations in
the answer area. Each property 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###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

DRAG DROP
The service has been deployed to Windows Azure.
Trey Research has provided version 1.3.0.0 of the assembly to support a change in the serialization
format. The service must remain available during the transition to the new serialization format.
You need to ensure that the service is using the new assembly.
Which configuration setting should you add to the web.config? (To answer, drag the appropriate
configuration elements to the correct location or locations in the answer area. Each configuration
element 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###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

Errors occasionally occur when saving data using the FlightInfoContext 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.
Which code segment should you use as the body of the SaveChanges() method in the
FlightInfoContext.es file?

###BeginCaseStudy###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

You are adding a new REST service endpoint to the FlightDataController controller. It returns flights from
the consolidated data sources only for flights that are late.
You need to write a LINQ to Entities query to extract the required data.
Which code segment should you use?

###BeginCaseStudy###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

Data provided by Consolidated Messenger is cached in the HttpContext.Cache object.
You need to ensure that the cache is correctly updated when new data arrives.
What should you do?

###BeginCaseStudy###
Topic 1, Flight Information
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 thirdparty assemblies must have strong names.
Application Structure

###EndCaseStudy###

You need to load flight information provided by Consolidated Messenger.
Which should you use?