70-487 Guide

70-487 Exam Royal Pack (In Stock.)

 
  • Microsoft
  • Exam Number/Code 70-487
  • Product Name Developing Windows Azure and Web Services
  • Questions and Answers
  • 113 Q&As
  • Last Updated
  • Jan 15,2018
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Q11. - (Topic 3) 

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:

Explanation: * 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. 


Q12. - (Topic 4) 

You are developing an ASP.NET MVC application that reads and writes data from a SQL Server database. 

You need to prevent the application from reading data that is locked by other transactions. You also need to prevent exclusive range locks. 

Which isolation level should you use? 

A. ReadCommitted 

B. Serializable 

C. Repeatable 

D. ReadUncommitted 

Answer:


Q13. DRAG DROP - (Topic 4) 

You are developing an ASP.NET MVC Web API application. 

The application must meet the following requirements: 

It must send or receive data without the use of a buffer. 

It must allow up to 1 MB of data to be received. 

It must allow up to 2 MB of data to be sent. 

You need to complete the code to meet the requirements. 

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: 


Q14. - (Topic 4) 

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:

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) => 


Q15. - (Topic 1) 

You are adding a new REST service endpoint to the FlightDataController controller. It 

returns flights from the consolidated data sources only for flights that are late. 

You need to write a LINQ to Entities query to extract the required data. 

Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:

Explanation: Explanation/Reference: 

D is right because you send result as REST so if you use “AsQueryable” the result is 

deferred to the next enumeration of your result. 

D is not optimized but will works. 

A will break at runtime. 

Credits to Rem 


Q16. HOTSPOT - (Topic 4) 

You are developing a WCF service. 

The service must be interoperable with ASP.NET web service clients. In addition, it must 

have a time-out of three hours. 

You need to configure the service to meet the requirements. 

You have the following markup: 

Which markup segments should you include in Target 1, Target 2, Target 3, Target 4, Target 5, Target 6 and Target 7 to complete the markup? (To answer, select the appropriate markup segment from each drop-down list in the answer area.) 

Answer: 


Q17. - (Topic 3) 

You need to update the CreateMonthlyTotalsReports() method to use database transactions. 

Which code segment should you use? 

A. SqlConnection.BeginTransaction(IsolationLevel.ReadCommitted); 

B. SqlConnection.BeginTransaction(IsolationLevel.ReadUnconwited); 

C. SqlConnection.BeginTransaction(IsolationLevel.Chaos); 

D. SqlConnection.BeginTransaction(IsolationLevel.Serializable); 

Answer:

Explanation: * Scenario: The Create MonthlyTotalsReport() method must lock the data and prevent others from updating or inserting new rows until complete. 

* Serializable: 

A range lock is placed on the DataSet, preventing other users from updating or inserting 

rows into the dataset until the transaction is complete. 


Q18. HOTSPOT - (Topic 4) 

You are supporting an application that uses the ADO.NET Entity Framework to query and access data. 

The latest version of a tool will add new templates and wizards that will enhance developer productivity. 

You need to update the tool. 

Which Visual Studio 2012 menu item should you choose? (To answer, select the appropriate menu item in the answer area.) 

Answer: 


Q19. - (Topic 3) 

You need to configure the server to self-host the bookstore's Web API application. Which code segment should you use? 

A. Option A 

B. Option B 

C. Option C 

D. Option D 

Answer:

Explanation: MapHttpRoute Method Maps the specified route template. Use the option with "api/… 


Q20. DRAG DROP - (Topic 1) 

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: 


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