Free Materials 70-487 PDF Dumps With Updated Exam Questions (41-50)

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QUESTION 41
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?

image_thumb_thumb

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

Answer: D

QUESTION 42
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?

A.    Ensure that the EffectivePrivateBytesLimit value is greater than the size of the database file.
B.    Change the sliding expiration of the cache item to 12 hours.
C.    Use the SqlCacheDependency type configured with a connection string to the database file.
D.    Use the CacheDependency type configured to monitor the SFTP target folder.

Answer: D

QUESTION 43
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

QUESTION 44
Drag and Drop Question
You need to parse flight information from Blue Yonder Airlines.
The content of the XML file is shown below.

image_thumb[1]_thumb

Some airlines do not specify the timezone of the arrival time.
If the timezone is not specified, then it should be interpreted per the business requirements.
You need to implement the LoadFlights() and Parse() methods of the BlueYonderLoader class. What should you do? (To answer, drag the appropriate code segments to the correct location in the answer area. Each 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.)

image_thumb[2]_thumb

Answer:

image_thumb[3]_thumb

QUESTION 45
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?

image_thumb[4]_thumb

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

Answer: D

QUESTION 46
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.)

A.    Use the WasLate property as the row key.
B.    Use the Airline property as the row key.
C.    Use the WasLate property as the partition key
D.    Use the Arrival property as the row key.
E.    Use the Airline property as the partition key.
F.    Use the Flight property as the row key.

Answer: EF

QUESTION 47
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?

image_thumb[5]_thumb

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

Answer: B

QUESTION 48
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?

image_thumb[6]_thumb

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

Answer: C

QUESTION 49
The QueueDetail entity type must inherit from the InboundQueue entity type in the ExternalQueue service project using table-per-type inheritance.
You need to modify the entities in the designer.
What should you do? (Each correct answer presents part of the solution. Choose all that apply.)

A.    Remove the OrderNum property in InboundQueue.
B.    Remove the OrderNum property in QueueDetail.
C.    Set the QueueDetail BaseType to InboundQueue.
D.    Remove the association between the entities.
E.    Right-click the entities and validate the table mapping.
F.    Set the InboundQueue BaseType to QueueDetail.

Answer: BCDE
Explanation:
http://www.robbagby.com/entity-framework/entity-framework-modeling-table-per-type-inheritance/

QUESTION 50
Drag and Drop Question
The GetVendorPolicy() private method in the ProcessedOrderController controller is returning a CacheItemPolicy object with default values.
The returned policy must expire if the external file located at C:\Triggers\VendorTrigger.txt has been modified or the timeout outlined in the technical requirements is reached.
You need to return the policy.
How should you build the method? (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.)

image_thumb[7]_thumb

Answer:

 image_thumb[8]_thumb

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