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Exam Code: 70-487
Exam Name: Developing Windows Azure and Web Services
Certification Provider: Microsoft
Corresponding Certifications: MCSD, MCSD: Web Applications

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QUESTION 91
You are developing an ASP.NET MVC application.
The application has a page that searches for and displays an image stored in a database.
Members of the EntityClient namespace are used to access an ADO.NET Entity Framework data model.
Images and associated metadata are stored in a database table.
You need to run a query that returns only the image while minimizing the amount of data that is transmitted.
Which method of the EntityCommand type should you use?

A.    ExecuteScalar
B.    ExecuteDbDataReader
C.    ExecuteReader
D.    ExecuteNonQuery

Answer: A
Explanation:
ExecuteScalar
Executes the command, and returns the first column of the first row in the result set.
Additional columns or rows are ignored.

QUESTION 92
You are developing an order processing application that uses the ADO.NET Entity Framework against a SQL Server database.
Lazy loading has been disabled.
The application displays orders and their associated order details.
Order details are filtered based on the category of the product in each order.
The Order class is shown below.
 
The OrderDetail class is shown below.
 
The Product class is shown below.
 
The Category class is shown below.
 
You need to return orders with their filtered list of order details included in a single round trip to the database.
Which code segment should you use?
 

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

Answer: B

QUESTION 93
Drag and Drop Question
You are developing a WCF service application.
The application must meet the following requirements:
– Operations must have 30 second timeouts.
– The service must have a transaction scope.
– Transactions must flow from the client to the server.
You need to write a transactional service contract and implementation class to meet the requirements.
You have the following code:
 
Which code segments should you include in Target 1, Target 2, Target 3 and Target 4 to complete the code? (To answer, drag the appropriate code segments to the correct targets 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:
 

QUESTION 94
Drag and Drop Question
You are developing a WCF service.
You need to configure the web.config file to ensure that metadata is exposed only via the MEX protocol.
You have the following markup:
 
Which XML elements should you include in Target 1, Target 2, Target 3 and Target 4 to complete the markup? (To answer, drag the appropriate XML elements to the correct targets in the answer area. Each XML 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.)

Answer:
 

QUESTION 95
Hotspot Question
You are developing a WCF service in Visual Studio 2013 that integrates with the Microsoft Azure service bus relay.
The Azure service bus namespace is named RestaurantServiceBus
You need to obtain the issuer name and secret.
What should you do? (To answer, select the appropriate option in the answer area.)
 
Answer:
 

QUESTION 96
Drag and Drop Question
You are developing an ASP.NET MVC Web API application.
The methods of the Web API must return details about the result of the operation.
You need to create a method to add products.
You have the following code:
 
Which code segments should you include in Target 1, Target 2, Target 3, Target 4 and Target 5 to complete the code? (To answer, drag the appropriate code segments to the correct targets 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:
 

QUESTION 97
You are developing a .NET application that uses the HttpClient type to call an ASP.NET Web API application.
The API call returns a list of customers in JSON format and logs the results.
The URI for the API call is in a variable named address.
You need to make the API call without blocking.
Which code segment should you use?
 

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

Answer: A
Explanation:
Example:
// Create an HttpClient instance
11: HttpClient client = new HttpClient();
12:
13: // Send a request asynchronously continue when complete
14: client.GetAsync(_address).ContinueWith(
15: (requestTask) =>
16: {
17: // Get HTTP response from completed task.
18: HttpResponseMessage response = requestTask.Result;
19:
20: // Check that response was successful or throw exception
21: response.EnsureSuccessStatusCode();
22:
23: // Read response asynchronously as JsonValue and write out top facts for each country
24: response.Content.ReadAsAsync<JsonArray>().ContinueWith(
25: (readTask) =>

QUESTION 98
Drag and Drop Question
You are developing a .NET application that uses the HttpClient type to access an ASP.NET Web API application.
You need to add a header to specify that data is returned as JSON.
You have the following code:
 
Which code segments should you include in Target 1 and Target 2 to complete the code? (To answer, drag the appropriate code segments to the correct targets 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:
 

QUESTION 99
Hotspot Question
You are updating an existing multitenant ASP.NET MVC application for medical clinics.
The application aggressively uses output caching to improve performance by caching content for 36 hours. The application uses a query string parameter named “clinicID” that contains the clinic that the user is currently viewing.
Users report that they are occasionally seeing data for the wrong clinic.
Users also report that sensitive data is stored in the browser cache folder on their computers.
You need to configure web.config to resolve the reported problems.
You have the following markup:
 
Which markup segments should you include in Target 1, Target 2 and Target 3 to complete the markup? (To answer, select the correct markup segment from each drop-down list in the answer area.)
 
Answer:
 

QUESTION 100
Drag and Drop Question
You have a UI element library.
You need to build a NuGet package to integrate the library into your projects.
What should you do? (To answer, drag the appropriate code elements to the correct location or locations in the answer area. Each code 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.)
 

Answer:
 


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