Download Developing Windows Azure and Web Services.70-487.PracticeTest.2019-03-23.97q.vcex

Vendor: Microsoft
Exam Code: 70-487
Exam Name: Developing Windows Azure and Web Services
Date: Mar 23, 2019
File Size: 9 MB
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Demo Questions

Question 1
Errors occasionally occur when saving data using the FlightInfoContext ADO.NET Entity Framework context. Updates to the data are being lost when an error occurs. 
You need to ensure that data is still saved when an error occurs by retrying the operation. No more than five retries should be performed. 
Which code segment should you use as the body of the SaveChanges() method in the FlightInfoContext.es file? 
  
  
  1. Option A
  2. Option B
  3. Option C
  4. Option D
Correct answer: A
Question 2
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? 
  
  1. Option A
  2. Option B
  3. Option C
  4. Option D
Correct answer: D
Question 3
Data provided by Consolidated Messenger is cached in the HttpContext.Cache object. You need to ensure that the cache is correctly updated when new data arrives.  
What should you do?
  1. Ensure that the EffectivePrivateBytesLimit value is greater than the size of the database file.
  2. Change the sliding expiration of the cache item to 12 hours.
  3. Use the SqlCacheDependency type configured with a connection string to the database file.
  4. Use the CacheDependency type configured to monitor the SFTP target folder.
Correct answer: D
Question 4
You need to load flight information provided by Consolidated Messenger.  
Which should you use?
  1. SQL Server Data Transformation Services (DTS)
  2. EntityTransaction and EntityCommand
  3. Office Open XML
  4. OleDbConnection and OleDbDataReader
Correct answer: D
Question 5
You are adding a new REST service endpoint to the FlightDataController controller that returns the total number of seats for each airline. 
You need to write a LINQ to Entities query to extract the required data. 
Which code segment should you use? 
  
  1. Option A
  2. Option B
  3. Option C
  4. Option D
Correct answer: D
Question 6
You need to load flight information provided by Consolidated Messenger.  
What should you use?
  1. Office Open XML
  2. COM interop
  3. OleDbConnection and OleDbDataReader
  4. EntityConnection and EntityDataReader
Correct answer: C
Question 7
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. 
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)
  1. Use the WasLate property as the row key.
  2. Use the Airline property as the row key.
  3. Use the WasLate property as the partition key
  4. Use the Arrival property as the row key.
  5. Use the Airline property as the partition key.
  6. Use the Flight property as the row key.
Correct answer: EF
Question 8
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. Option A
  2. Option B
  3. Option C
  4. Option D
Correct answer: D
Explanation:
http://msdn.microsoft.com/en-us/library/system.xml.linq.xstreamingelement.aspx and http://msdn.microsoft.com/en-us/library/bb551307.aspx
http://msdn.microsoft.com/en-us/library/system.xml.linq.xstreamingelement.aspx and http://msdn.microsoft.com/en-us/library/bb551307.aspx
Question 9
Errors occasionally occur when saving data using the FlightlnfoContext ADO.NET Entity Framework context. Updates to the data are being lost when an error occurs. 
You need to ensure that data is still saved when an error occurs by retrying the operation. No more than five retries should be performed. 
With which code segment should you replace the body of the SaveChanges() method in the FlightInfoContext.es file? 
  
  1. Option A
  2. Option B
  3. Option C
  4. Option D
Correct answer: C
Question 10
DRAG DROP 
The service has been deployed to Microsoft Azure. 
Trey Research has provided version 1.3.0.0 of the assembly to support a change in the serialization format. The service must remain available during the transition to the new serialization format. 
You need to ensure that the service is using the new assembly. 
You have the following markup in the web.config file:
  
Which configuration elements should you include in Target 1, Target 2, and Target 3 to complete the markup? To answer, drag the appropriate configuration elements to the correct target in the answer area. Each configuration 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. 
NOTE: Each correct selection is worth one point.
Correct answer: To work with this question, an Exam Simulator is required.
Explanation:
References:https://docs.microsoft.com/en-us/dotnet/framework/configure-apps/file-schema/runtime/bindingredirect-element
References:
https://docs.microsoft.com/en-us/dotnet/framework/configure-apps/file-schema/runtime/bindingredirect-element
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