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70-487 | You need to choose the appropriate….

Question: 7

You need to choose the appropriate data access strategy for the college textbook area of the web application. Which data access technology should you implement?

A. ADO.NET
B. Entity Data Model (EDM)
C. WCF Data Services
D. LINQ to SQL

Answer: A

70-487|You need to load flight information provided

Question: 6

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

A. SQL Server Data Transformation Services (DTS)
B. EntityTransaction and EntityCommand
C. Office Open XML
D. OleDbConnection and OleDbDataReader

Answer: D

70-487|You need to choose the appropriate data access strategy

Question: 5

You need to choose the appropriate data access strategy for the college textbook area of the web application. Which data access technology should you implement?

A. ADO.NET
B. Entity Data Model (EDM)
C. WCF Data Services
D. LINQ to SQL

Answer: A

Explanation
Explanation/Reference:

* Scenario: The college textbook area of the web application must get data from a daily updated CSV file.
* ADO.NET reads the CSV file in a very similar way as table in database.

What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

Question: 4

You are developing a WCF service.
You need to create a duplex contract.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A. Apply the MessageContractAttribute attribute to every public method signature included in the appropriate contract.
B. Create an interface for the client-side duplex contract.
C. Create an interface for the server-side duplex contract.
D. Apply the MessageContractAttribute attribute to the appropriate interface.
E. Apply the ServiceContractAttribute attribute to the appropriate interface. Then, apply the OperationContractAttribute attribute to every public method signature included in that contract.
F. Set the CallbackContract property to the appropriate interface.

Answer: CEF

Section: [none]
Explanation
Explanation/Reference:
To create a duplex contract
1. (C) Create the interface that makes up the server side of the duplex contract.
2. (E) Apply the ServiceContractAttribute class to the interface.
3. Declare the method signatures in the interface.
4. (E) Apply the OperationContractAttribute class to each method signature that must be part of the public contract.
5. Create the callback interface that defines the set of operations that the service can invoke on the client.
6. Declare the method signatures in the callback interface.
7. Apply the OperationContractAttribute class to each method signature that must be part of the public contract.
8. (F) Link the two interfaces into a duplex contract by setting the CallbackContract property in the primary interface to the type of the callback interface.

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

Free 70-487 Questions Answers

Question 1

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?

1

A. Option A
B. Option B
C. Option C
D. Option D

Answer: D