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Micros oft
70-48 7
Developing Microsoft Azure and Web Services
 
  
  
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Case Study: 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 third-party assemblies must have strong names. 
Application Structure 
 
 
 
 
 
 
 
 
 
Question: 1  
   
 
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.) 
 
 
 
Answer:  
 
 
 
 
Question: 2  
 
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.) 
 
 
Answer:  
 
 
 
 
Question: 3 
 
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? 
 
A. LINQ to XML 
B. ADO.NET Entity Framework 
C. ADO.NET DataSets 
D. WCF Data Services 
 
Answer: D     
 
Question: 4  
   
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.) 
 
 
Answer:      
 
 
Explanation:  
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"http://msdn.microsoft.com/en-us/library/ms135424.aspx#_blank"//msdn.microsoft.com/en-
us/library/ms135424.aspx 
 
Question: 5  
   
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. 
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