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Microsoft 70-516 Exam Syllabus Topics:

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

Question 1

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that
uses LINQ to SQL.
You create a data model name AdvWorksDataContext, and you add the Product table to the data model.
The Product table contains a decimal column named ListPrice and a string column named Color.
You need to update ListPrice column where the product color is Black or Red. Which code segment should
you use?

A. AdvWorksDataContext dc = new AdvWorksDataContext("..."); var prod = from p in dc.Products
select p;
var list = prod.ToList();
foreach(Product product in list){
if(product.Color == "Black, Red"){
product.ListPrice = product.StandardCost * 1.5M;
}
}
dc.SubmitChanges();
B. string[] colorList = new string[] {"Black", "Red"}; AdvWorksDataContext dc = new AdvWorksDataContext(); var prod = from p in dc.Products
where colorList.Contains(p.Color)
select p;
foreach(var product in prod){
product.ListPrice = product.StandardCost * 1.5M;
}
dc.SubmitChanges();
C. AdvWorksDataContext dc = new AdvWorksDataContext("..."); var prod = from p in dc.Products
select p;
var list = prod.ToList();
foreach(Product product in list){
if((product.Color == "Black) && (product.Color == "Red")){
product.ListPrice = product.StandardCost * 1.5M;
}
}
dc.SubmitChanges();
D. AdvWorksDataContext dc = new AdvWorksDataContext("...");
var prod = from p in dc.Products
where p.Color == "Black, Red"
select p;
foreach(var product in prod){
product.ListPrice = product.StandardCost * 1.5M;
}
dc.SubmitChanges();

Question 2

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. Initial Catalog= SQL01\INST01
B. Data Source=INST01\SQL01
C. Data Source=SQL01\INST01
D. Initial Catalog= INST01\SQL01

Question 3

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to two different Microsoft SQL Server 2008 database servers named Server1 and
Server2.
A string named sql1 contains a connection string to Server1. A string named sql2 contains a connection
string to Server2.
01 using (TransactionScope scope = new
02 ...
03 )
04 {
05 using (SqlConnection cn1 = new SqlConnection(sql1))
06 {
07 try{
08 ...
09 }
10 catch (Exception ex)
11 {
12 }
13 }
14 scope.Complete();
15 }
You need to ensure that the application meets the following requirements:
-There is a SqlConnection named cn2 that uses sql2.
-The commands that use cn1 are initially enlisted as a lightweight transaction.
The cn2 SqlConnection is enlisted in the same TransactionScope only if commands executed by cn1 do not
throw an exception.
What should you do?

A. Insert the following code segment at line 02.
TransactionScope(TransactionScopeOption.RequiresNew)
Insert the following code segment at line 08.
using (SqlConnection cn2 = new SqlConnection(sql2)) {
try{
cn2.Open();
...
cn1.Open();
...
}
catch (Exception ex){}
}
B. Insert the following code segment at line 02.
TransactionScope(TransactionScopeOption.Suppress)
Insert the following code segment at line 08.
using (SqlConnection cn2 = new SqlConnection(sql2))
{
try
{
cn2.Open();
...
cn1.Open();
...
}
catch (Exception ex){}
}
C. Insert the following code segment at line 02.
TransactionScope(TransactionScopeOption.Suppress)
Insert the following code segment at line 08.
cn1.Open();
...
using (SqlConnection cn2 = new SqlConnection(sql2))
{
try
{
cn2.Open();
...
}
catch (Exception ex){}
}
D. Insert the following code segment at line 02.
TransactionScope(TransactionScopeOption.RequiresNew)
Insert the following code segment at line 08.
cn1.Open();
...
using (SqlConnection cn2 = new SqlConnection(sql2))
{
try
{
cn2.Open();
...
}
catch (Exception ex){}
}

Question 4

You use Microsoft .NET Framework 4.0 to develop an application that connects to a local Microsoft SQL
Server 2008 database.
The application can access a high-resolution timer. You need to display the elapsed time, in sub-
milliseconds (<1 millisecond),
that a database query takes to execute. Which code segment should you use?

A. Stopwatch sw = new Stopwatch(); sw.Start() ; command.ExecuteNonQuery(); sw.Stop(); Console.WriteLine("Time Elapsed: {0:N} ms", sw.Elapsed.Milliseconds);
B. DateTime Start = DateTime.UtcNow; command.ExecuteNonQuery(); TimeSpan Elapsed = DateTime.UtcNow - Start; Console.WriteLine("Time Elapsed: {0:N} ms", Elapsed.Milliseconds);
C. Stopwatch sw = Stopwatch.StartNew(); command.ExecuteNonQuery() ; sw.Stop() ; Console.WriteLine("Time Elapsed: {0:N} ms", sw.Elapsed.TotalMilliseconds);
D. int Start = Environment.TickCount; command.ExecuteNonQuery(); int Elapsed = (Environment.TickCount) - Start; Console.WriteLine("Time Elapsed: {0:N} ms", Elapsed);

Question 5

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. The application contains the following XML fragment:
<ApplicationMenu> <MenuItem name="File">
<MenuItem name="New">
<MenuItem name="Project" />
<MenuItem name="Web Site" />
</MenuItem>
<MenuItem name="Open">
<MenuItem name="Project" />
<MenuItem name="Web Site" />
</MenuItem>
<MenuItem name="Save" />
</MenuItem>
<MenuItem name="Edit">
<MenuItem name="Cut" />
<MenuItem name="Copy" />
<MenuItem name="Paste" />
</MenuItem>
<MenuItem name="Help">
<MenuItem name="Help" />
<MenuItem name="About" />
</MenuItem> </ApplicationMenu>
The application queries the XML fragment by using the XmlDocument class. You need to select all the descendant elements of the MenuItem element that has its name attribute as File. Which XPath expression should you use?

A. /ApplicationMenu/MenuItem[@name='File']/descendant::MenuItem
B. //*[@name='File'][name()='MenuItem']
C. /ApplicationMenu/MenuItem/descendant::MenuItem['File']
D. /ApplicationMenu/MenuItem['File']//MenuItem

Solutions: