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Microsoft TS: Accessing Data with Microsoft .NET Framework 4 Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that
connects
to a Microsoft SQL Server 2008 database. The application performs a database query within a transaction.
You need to ensure that the application can read data that has not yet beed commited by other
transactions.
Which IsolationLevel should you use?

A) ReadCommitted
B) Unspecified
C) ReadUncommitted
D) RepeatableRead

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application uses the ADO.NET Entity Framework to model entities.
The application allows users to make changes while disconnected from the data store.
Changes are submitted to the data store by using the SubmitChanges method of the DataContext object.
You receive an exception when you call the SubmitChanges method to submit entities that a user has
changed in offline mode.
You need to ensure that entities changed in offline mode can be successfully updated in the data store.
What should you do?

A) Call the SaveChanges method of DataContext with a value of false.
B) Set the ObjectTrackingEnabled property of DataContext to true.
C) Call the SubmitChanges method of DataContext with a value of System.Data.Linq.ConflictMode.ContinueOnConflict.
D) Set the DeferredLoadingEnabled property of DataContext to true.

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server 2008 database.
You need to ensure that the application calls a stored procedure that accepts a table-valued parameter.
You create a SqlParameter object. What should you do next?

A) Set the SqlDbType of SqlParameter to Udt.
B) Set the SqlDbType of SqlParameter to Variant.
C) Set the SqlDbType of SqlParameter to Structured. Set the TypeName of SqlParameter to Udt.
D) Set the ParameterDirection of SqlParameter to Output.

4. You use Microsoft .NET Framework 4.0 to develop an application. You use the XmlReader class to load
XML from a location that you do not control.
You need to ensure that loading the XML will not load external resources that are referenced in the XML.
Which code segment should you use?

A) XmlReaderSettings settings = new XmlReaderSettings(); settings.CheckCharacters = true; XmlReader reader = XmlReader.Create("data.xml", settings);
B) XmlReaderSettings settings = new XmlReaderSettings(); settings.ValidationType = ValidationType.None; XmlReader reader = XmlReader.Create("data.xml", settings);
C) XmlReaderSettings settings = new XmlReaderSettings(); settings.XmlResolver = null; XmlReader reader = XmlReader.Create("data.xml", settings);
D) XmlReaderSettings settings = new XmlReaderSettings(); settings.ConformanceLevel = ConformanceLevel.Auto; XmlReader reader = XmlReader.Create("data.xml", settings);

5. The application must be configured to run on a new development computer.
You need to configure the connection string to point to the existing named instance.
Which connection string fragment should you use?

A) Data Source=INST01\SQL01
B) Initial Catalog= SQL01\INST01
C) Initial Catalog= INST01\SQL01
D) Data Source=SQL01\INST01

Solutions: