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Microsoft 070-516 Exam Syllabus Topics:

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

1. You use Microsoft .NET Framework 4.0 to develop an ASP.NET Web application that connects to a
Microsoft SQL Server 2008 database.
The application uses Integrated Windows authentication in Internet Information Services (IIS) to
authenticate users.
A connection string named connString defines a connection to the database by using integrated security.
You need to ensure that a SqlCommand executes under the application pool's identity on the database
server.
Which code segment should you use?

A) using (var conn = new SqlConneccion())
{
using (HostingEnvironroent.Impersonate())
{
conn.ConnectionString = connString;
}
var cmd = new SqlCommand("SELECT * FROM BLOG, conn);
conn.Open() ;
var result = cmd.ExecuteScalar();
}
B) using (var conn = new SqlConnection())
{
conn.ConnectionString = connString;
SqlCommand cmd = null;
using (HostingEnvironment.Impersonate())
{
cmd = new SqlCommand("SELECT * FROM BLOG", conn);
}
conn.Open();
var result = cmd.ExecuteScalar();
}
C) using (var conn = new SqlConnection(connString))
{
var cmd = new SqlCommand ("SELECT * FROM BLOG, conn);
conn.Open();
using(HostingEnvironment.Impersonate())
{
var result = cmd.ExecuteScalar();
}
}
D) using (var conn = new SqlConnection())
{
conn.ConnectionString = connString;
var cmd = new SqlCommand("SELECT * FROM BLOG", conn);
using (HostingEnvironment.Impersonate())
{
conn.Open();
}
var result = cmd.ExecuteScalar();
}

2. You use Microsoft .NET Framework 4.0 to develop an application that connects to two separate Microsoft
SQL Server 2008 databases.
The Customers database stores all the customer information, and the Orders database stores all the order
information.
The application includes the following code. (Line numbers are included for reference only.)
01 try
02 {
03 conn.Open();
04 tran = conn.BeginTransaction("Order");
05 SqlCommand cmd = new SqlCommand();
06 cmd.Connection = conn;
07 cmd.Transaction = tran;
08 tran.Save("save1");
09 cmd.CommandText = "INSERT INTO [Cust].dbo.Customer " + "(Name,
PhoneNumber) VALUES ('Paul Jones', " + "'404-555-1212')";
10 cmd.ExecuteNonQuery();
11 tran.Save("save2");
12 cmd.CommandText = "INSERT INTO [Orders].dbo.Order " + "(CustomerID)
VALUES (1234)";
13 cmd.ExecuteNonQuery();
14 tran.Save("save3");
15 cmd.CommandText = "INSERT INTO [Orders].dbo." + "OrderDetail (OrderlD,
ProductNumber) VALUES" + "(5678, 'DC-6721')";
16 cmd.ExecuteNonQuery();
17 tran.Commit();
18 }
19 catch (Exception ex)
20 {
21 ...
22 }
You run the program, and a timeout expired error occurs at line 16. You need to ensure that the customer
information is saved in the database.
If an error occurs while the order is being saved, you must roll back all of the order information and save the
customer information.
Which line of code should you insert at line 21?

A) tran.Rollback();
B) tran.Rollback("save2"); tran.Commit();
C) tran.Rollback(); tran.Commit();
D) tran.Rollback("save2");

3. You use Microsoft .NET Framework 4.0 to develop an application that uses WCF Data Services to persist entities from the following Entity Data Model.

You create a new Blog instance named newBlog and a new Post instance named newPost as shown in the
following code segment.
(Line numbers are included for reference only.)
01 Blog newBlog = new Blog();
02 Post newPost = new Post();
03 ....
04 Uri serviceUri = new Uri("...");
05 BlogsEntities context = new BlogsEntities(serviceUri);
06 ....
You need to ensure that newPost is related to newBlog through the Posts collection property and that
newPost and newBlog are sent to the service.
Which code segment should you insert at line 06?

A) newBlog.Posts.Add(newPost); context.AttachTo("Blogs", newBlog); context.AttachTo("Posts", newPost); context.SaveChanges(SaveChangesOptions.Batch);
B) context.AttachLink(newBlog, "Posts", newPost); context.SaveChanges(SaveChangesOptions.Batch) ;
C) newBlog.Posts.Add(newPost); context.AddToBlogs(newBlog); context.AddToPosts(newPost); context.SaveChanges(SaveChangesOptions.Batch);
D) newBlog.Posts.Add(newPost); context.UpdateObject(newBlog); context.UpdateObject(newPost); context.SaveChanges(SaveChangesOptions.Batch);

4. You use Microsoft .NET Framework 4.0 to develop an application that connects to a Microsoft SQL Server
2008 database.
You need to prevent dirty or phantom reads. Which IsolationLevel should you use?

A) ReadUncommited
B) ReadCommited
C) Serializable
D) Snapshot

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a Windows
Communication Foundation (WCF) Data Services service.
You discover that when an application submits a PUT or DELETE request to the Data Services service, it
receives an error.
You need to ensure that the application can access the service. Which header and request type should you
use in the application?

A) an X-HTTP-Method header as part of a POST request
B) an X-HTTP-Method header as part of a GET request
C) an HTTP ContentType header as part of a GET request
D) an HTTP ContentType header as part of a POST request

Solutions: