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MCSD.NET - 70-320 Exam Interview Question:

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You are creating an XML Web service named ListBoxService. This service provides content,
such as states, countries, and geographical regions, for use in drop-down list boxes.
ListBoxService contains a Web method named RetrieveRegionsListBox. This method runs a
Dataset object that contains every geographical region in the world. RetrieveRegionsListBox calls
a Microsoft SQL Server database to load the Dataset object with region data. You want to
minimize the amount of time the method takes to return to the caller.
What should you do?
A. Use a stored procedure to return the datas.
B. Store each Dataset object by using the Session object.
C. Set the Buffer Response property of the Web Method attribute to false.
D. Set the Cache Duration property of the Web Method attribute to an interval greater than zero.

Submitted by: Administrator

D. Set the Cache Duration property of the Web Method attribute to an interval greater than zero.
Submitted by: Administrator

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Top MCSD.NET - 70-320 Exam Questions

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Suppose You create a .NET Remoting object named Patient info that exposes medical patient information.
Because of the confidential nature of the information, you must ensure that the data remains
secure. You want client applications to connect to Patient info over a secure communication
channel. You want to accomplish this task by writing the minimum amount of code.
What should you do?
A. Create your own host application and use a Tcp Channel and Binary Formatter.
B. Create your own host application and use an Http Channel and a Soap Formatter.
C. Install Patient info in an Internet Information Services (IIS) virtual directory.
Configure Patient info to use a Tcp Channel and a Binary Formatter.
Configure IIS to use SSL.
D. Install Patient info in an Internet Information Services (IIS) virtual directory.
Configure Patient info to use an Http Channel and a Soap Formatter.
Configure IIS to use SSL.

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You have a .NET Remoting object named Utils. The Utils class is a client-activated .NET
Remoting object. You want to write a client application that creates and uses a Utils object. You
want the client application to hold onto a reference to a Utils object for the duration of its
execution.
What should you do?
A. Construct the Utils object, and hold the object in a member variable.
B. Construct the Utils object, and set the LifeTimeService.LeaseTime to 0.
C. In the client application, create an Implementation of the ISponsor interface. Implement the
Renewal method to extend the lease.
D. In the client application, create an Implementation of the ILease interface. Implement the
CurrentLeaseTime property to return Int32.MaxValue.

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Suppose You are developing an application named ExamSApp by using Visual C# .NET and Visual Basic
.NET. The application will use functions form a DLL written in unmanaged code. One function
requires the calling application to allocate unmanaged memory, fill it with data, and pass the
address of the memory to the function. On returning from the function, the calling application must
deallocate the unmanaged memory.
You need to decide how your application will handle unmanaged memory.
What should you do?
A. Use a byte array.
B. Use the methods of the Marshal class.
C. Use the methods of the MemoryStream class.
D. Derive a new class from the Stream class, and override the allocation methods.

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Suppose You create three Windows services named ES1, ES2, and ES3. You want to install all three
services on a computer named CompanyA by using the Installer tool (Installutil.exe).
On the command line of CompanyA, you enter and run the following command: Install util ES1
ES2 ES3
During the installation process, ES3 throws an installation error. The installation process
completes.
How many of the three services are now installed on CompanyA?
A. None
B. One
C. Two
D. Three

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Suppose You have a Dataset object named ES DataSet that is populated with data from a Microsoft SQL
Server database. This object contains insertions, deletions, and updates to the data. You want to
apply the data changes in ES DataSet to the database. You decide to use the Sulligent data
provider. You need to create a data object that you will use to update the database. Which code
segment should you use?
A. SqlDataReader myDataReader;
B. SqlDataAdapter mySqlDataAdapter = new sqlDataAdapter();
C. DataObject myDataObject = new DataObject();
D. SqlParameter myParameter = new SqlParameter();

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