Which method should you add to the TranscodeWorkerRole …
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###EndCaseStudy###
The transcode.exe utility activates its license online when it is installed.
You need to ensure that the registration of the transcode utility is handled as specified in its license.
Which method should you add to the TranscodeWorkerRole class?
Which code segment should you use as the body of the Ge…
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###EndCaseStudy###
You need to maximize performance of video delivery.
Which code segment should you use as the body of the GetVideoStream function in the Video-Controller
class?
You need to implement the design
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###EndCaseStudy###
HOTSPOT
The designer for the website gave you the following image as the design for the page.
The normal color for the tab is *2da4c2, and the color when the mouse is over the tab is #ffd800.
The HTML that implements the navigation tab is as follows.
You need to implement the design.
What should you do? (To answer, select the appropriate options in the answer area.)
Hot Area:
You need to implement the custom authentication
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###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.)
You need to ensure that all the MVC controllers are sec…
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###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?
Which attribute should you add?
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###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?
You need to ensure that developers can connect to a Win…
###BeginCaseStudy###
Testlet 1
Background
You are developing a video transcoding service. This service is used by customers to upload video files,
convert video to other formats, and view the converted files. This service is used by customers all over the
world.
Business Requirements
The user-facing portion of the application is an ASP.NET MVC application. It provides an interface for
administrators to upload video and schedule transcoding. It also enables administrators and users to download
the transcoded videos.
When videos are uploaded, they are populated with metadata used to identify the video. The video metadata is
gathered by only one system when the video upload is complete.
Customers require support for Microsoft Internet Explorer 7 and later.
The application contains a header that is visible on every page.
If the logged-on user is an administrator, then the header will contain links to administrative functions. This
information is read from a cookie that is set on the server. The administrative links must not be present if an
error condition is present.
Technical Requirements
User Experience:
The front-end web application enables a user to view a list of videos.
The main view of the application is the web page that displays the list of videos.
HTML elements other than the list of videos are changed with every request requiring the page to reload.
Compatibility:
Some customers use browsers that do not support the HTTP DELETE verb.
These browsers send a POST request with an HTTP header of X-Delete when the intended action is to
delete.
Transcoding:
The video transcoding occurs on a set of Windows Azure worker roles.
The transcoding is performed by a third-party command line tool named transcode.exe. When the tool is
installed, an Environment variable named transcode contains the path to the utility.
A variable named license contains the license key. The license for the transcoding utility requires that it be
unregistered when it is not in use.
The transcoding utility requires a significant amount of resources. A maximum of 10 instances of the utility
can be running at any one time. If an instance of the role cannot process an additional video, it must not
prevent any other roles from processing that video.
The utility logs errors to a Logs directory under the utilities path.
A local Azure directory resource named perf is used to capture performance data.
Development:
Developers must use Microsoft Remote Desktop Protocol (RDP) to view errors generated by the
transcode.exe utility.
An x509 certificate has been created and distributed to the developers for this purpose.
Developers must be able to use only RDP and not any other administrative functions.
Application Structure
###EndCaseStudy###
You need to ensure that developers can connect to a Windows Azure role by using RDP.
What should you do?
How should you build the ProcessRequest method?
###BeginCaseStudy###
Testlet 1
Background
You are developing an online shopping web application.
Business Requirements
A user is not required to provide an email address. If a user enters an email address, it must be verified to
be a valid email address.
Information about the first product on the product page must fade out over time to encourage the user to
continue browsing the catalog.
Administrators must be able to edit information about existing customers.
Administrators also must be able to specify a default product on the product page.
Technical Requirements
General:
The web store application is in a load-balanced web farm. The load balancer is not configured to use server
affinity.
The web store application isan ASP.NET MVC application written in Visual Studio.
Products:
The value of the product ID property must always be greater than 0.
The Products page for mobile devices must display to mobile users. The Products page for desktop devices
must display to desktop users.
Storage:
The data must be stored in a serialized XML data format.
Serialized objects must be schema-independent.
Exception handling:
Exceptions originating from IIS must display a page with support contact information.
Some page links expire, and users who access these links encounter 404 errors.
Exceptions must be logged by using the WriteLog method of the Utility class.
Browser and device support:
The application must support image format conversions from .bmp to .jpeg for mobile devices.
The application must support image format conversions from .bmp to .png for desktop devices.
Application Structure
###EndCaseStudy###
HOTSPOT
You need to implement the mobile device support requirements.
How should you build the ProcessRequest method? (To answer, select the appropriate options in the answer
area.)
Hot Area:
Which code segment should you use?
###BeginCaseStudy###
Testlet 1
Background
You are developing an online shopping web application.
Business Requirements
A user is not required to provide an email address. If a user enters an email address, it must be verified to
be a valid email address.
Information about the first product on the product page must fade out over time to encourage the user to
continue browsing the catalog.
Administrators must be able to edit information about existing customers.
Administrators also must be able to specify a default product on the product page.
Technical Requirements
General:
The web store application is in a load-balanced web farm. The load balancer is not configured to use server
affinity.
The web store application isan ASP.NET MVC application written in Visual Studio.
Products:
The value of the product ID property must always be greater than 0.
The Products page for mobile devices must display to mobile users. The Products page for desktop devices
must display to desktop users.
Storage:
The data must be stored in a serialized XML data format.
Serialized objects must be schema-independent.
Exception handling:
Exceptions originating from IIS must display a page with support contact information.
Some page links expire, and users who access these links encounter 404 errors.
Exceptions must be logged by using the WriteLog method of the Utility class.
Browser and device support:
The application must support image format conversions from .bmp to .jpeg for mobile devices.
The application must support image format conversions from .bmp to .png for desktop devices.
Application Structure
###EndCaseStudy###
The GetDealPrice method must be called by using Ajax.
You need to get the price of a product by using the GetDealPrice method of the ProductController.
Which code segment should you use? (Each correct answer presents a complete solution. Choose all that
apply.)
Which code segment should you use?
###BeginCaseStudy###
Testlet 1
Background
You are developing an online shopping web application.
Business Requirements
A user is not required to provide an email address. If a user enters an email address, it must be verified to
be a valid email address.
Information about the first product on the product page must fade out over time to encourage the user to
continue browsing the catalog.
Administrators must be able to edit information about existing customers.
Administrators also must be able to specify a default product on the product page.
Technical Requirements
General:
The web store application is in a load-balanced web farm. The load balancer is not configured to use server
affinity.
The web store application isan ASP.NET MVC application written in Visual Studio.
Products:
The value of the product ID property must always be greater than 0.
The Products page for mobile devices must display to mobile users. The Products page for desktop devices
must display to desktop users.
Storage:
The data must be stored in a serialized XML data format.
Serialized objects must be schema-independent.
Exception handling:
Exceptions originating from IIS must display a page with support contact information.
Some page links expire, and users who access these links encounter 404 errors.
Exceptions must be logged by using the WriteLog method of the Utility class.
Browser and device support:
The application must support image format conversions from .bmp to .jpeg for mobile devices.
The application must support image format conversions from .bmp to .png for desktop devices.
Application Structure
###EndCaseStudy###
You need to update the routes to ensure that a product is always displayed on the product page.
Which code segment should you use?
