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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

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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.)
Select and Place:

Answer: