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Q31. - (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: A
Q32. - (Topic 4)
You are building an ADO.NET Entity Framework application.
You need to validate the conceptual schema definition language (CSDL), store schema definition language (SSDL), and mapping specification language (MSL) files.
Which Entity Data Model tool can you use? (Each correct answer presents a complete solution. Choose all that apply.)
A. EDM Generator (EdmGen.exe)
B. ADO.NET Entity Data Model Designer
C. Entity Data Model Wizard
D. Update Model Wizard
Answer: A,B
Q33. - (Topic 4)
You are developing an ASP.NET MVC application that displays a report. The report includes large images that are stored in a database. Members of the EntityClient namespace are used to access the database through the ADO.NET Entity Framework data model.
You need to prevent memory exceptions while generating a report using the EntityDataRcader type.
Which CommandBehavior type should you use?
A. FastForwardReadOnly
B. SequentialAccess
C. SingleResult
D. SingleRow
Answer: B
Explanation: SequentialAccess Provides a way for the DataReader to handle rows that contain columns with large binary values. Rather than loading the entire row, SequentialAccess enables the DataReader to load data as a stream.
Q34. - (Topic 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?
A. Option A
B. Option B
C. Option C
D. Option D
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
Q35. - (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: D
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.
Q36. - (Topic 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?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q37. - (Topic 1)
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
Q38. - (Topic 3)
You need to implement the Get() method in the bookstore Web API application to be able to find books by using an ad hoc query.
Which method should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q39. - (Topic 1)
You need to load flight information provided by Consolidated Messenger. What should you use?
A. Office Open XML
B. COM interop
C. OleDbConnection and OleDbDataReader
D. EntityConnection and EntityDataReader
Answer: C
Q40. DRAG DROP - (Topic 3)
An XML file must be produced by the SaveFeaturedBooks() method of the Book class. The
schema of the resulting XML file must be identical to the FeaturedBooks.xml file.
You need to write the code to produce the file.
You have the following code:
Which code segments should you include in Target 1, Target 2 and Target 3 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: