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最新的 MCTS 70-516 免費考試真題:

1. 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.
The database includes a database table named ProductCatalog as shown in the exhibit:

You add the following code segment to query the first row of the ProductCatalog table. (Line numbers are included for reference only.)
01 using(SqlConnection cnx = new SqlConnection(connString)
02 {
03 var command = cnx.CreateCommand();
04 command.CommandType = CommandType.Text;
05 command.CommandText = "SELECT TOP 1 * FROM dbo.ProductCatalog";
06 cnx.Open();
07 var reader = command.ExecuteReader();
08 if (reader.Read())
09 {
10 var id = reader.GetInt32(0);
11 ...
12 reader.Close();
13 }
14 }
Which answer belongs in line 11?

A) var weight = reader.GetDouble(1); var price = reader.GetFloat(2); var status = reader.GetBoolean(3);
B) var weight = reader.GetDouble(1); var price = reader.GetDecimal(2); var status = reader.GetBoolean(3);
C) var weight
= reader.GetFloat(1); var price = reader.GetDecimal(2); var status = reader.GetByte(3);
D) var weight = reader.GetFloat(1); var price = reader.Doublel(2); var status = reader.GetByte(3);

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. You use the ADO.NET Entity Framework to model entities. You write the following code segment. (Line numbers are included for reference only.)
01 AdventureWorksEntities context = new AdventureWorksEntities("http://
localhost:1234/AdventureWorks.svc");
02 ...
03 var q = from c in context.Customers
04 where c.City == "London"
05 orderby c.CompanyName
06 select c;
You need to ensure that the application meets the following requirements:
-Compares the current values of unmodified properties with values returned from the data source.
-Marks the property as modified when the properties are not the same. Which code segment should you insert at line 02?

A) context.MergeOption = MergeOption.OverwriteChanges;
B) context.MergeOption = MergeOption.AppendOnly;
C) context.MergeOption = MergeOption.NoTracking;
D) context.MergeOption = MergeOption.PreserveChanges;

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
You use Plain Old CLR objects (POCO) to model your entities.
The application communicates with a Windows Communication Foundation (WCF) Data Services service.
You need to ensure that entities can be sent to the service as XML. What should you do?

A) Apply the virtual keyword to the entity properties.
B) Apply the [DataContract(IsReference = false)] attribute to the entities.
C) Apply the [DataContract(IsReference = true)] attribute to the entities.
D) Apply the [Serializable] attribute to the entities.

4. You use Microsoft .NET Framework 4 to develop an application that connects to a Microsoft SQL Server
2008 database.
The database contains a ClassStudent table that contains the StudentID for students who are enrolled in
the classes.
You add the following stored procedure to the database.
CREATE PROCEDURE [dbo].[GetNumEnrolled] @ClassID INT, @NumEnrolled INT OUTPUT
AS BEGIN SET NOCOUNT ON SELECT @NumEnrolled = COUNT(StudentID)
FROM ClassStudent
WHERE (ClassID = @ClassID)
END
You write the following code. (Line numbers are included for reference only.)
01 private int GetNumberEnrolled(string classID)
02 {
03 using (SqlConnection conn = new SqlConnection(GetConnectionString())
04 {
05 SqlCommand cmd = new SqlCommand("GetNumEnrolled", conn);
06 cmd.CommandType = CommandType.StoredProcedure;
07 SqlParameter parClass = cmd.Parameters.Add("@ClassID", SqlDbType.Int,
4, "classID");
08 SqlParameter parNum = cmd.Parameters.Add("@NumEnrolled",
SqlDbType.Int);
09 ...
10 conn.Open()
11 ...
12 }
13 }
You need to ensure that the GetNumberEnrolled method returns the number of students who are enrolled
for a specific class.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Insert the following code at line 09.
parNum.Direction = ParameterDirection.Output;
B) Insert the following code at line 11.
int numEnrolled = 0;
SqlDataReader reader = cmd.ExecuteReader();
while(reader.Read())
{
numEnrolled = numEnrolled + (int)cmd.Parameters["@NumEnrolled"].Value; } return numEnrolled;
C) Insert the following code at line 11.
cmd.ExecuteNonQuery();
return (int)parNum.Value;
D) Insert the following code at line 09.
parNum.Direction = ParameterDirection.Input;

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application. The application contains following XML document.
<feed> <title>Products</title> <entry>
<title>Entry title 1</title>
<author>Author 1</author>
<content>
<properties>
<description>some description</description>
<notes>some notes</notes>
<comments>some comments</comments>
</properties>
</content>
</entry>
...
</feed>
You plan to add localization features to the application. You add the following code segment. (Line numbers are included for reference only.)
01 public IEnumerable <XNode> GetTextNodesForLocalization(XDocument doc) 02 {
03 ...
04 return from n in nodes
05 where n.NodeType = XmlNodeType.Text
06 select n;
07 }
You need to ensure that the GetTextNodeForLocalization method returns all the XML text nodes of the XML
document.
Which code segment should you inser at line 03?

A) IEnumerable <XNode> nodes = doc.NodesAfterSelf();
B) IEnumerable <XNode> nodes = doc.Descendants();
C) IEnumerable <XNode> nodes = doc.Nodes();
D) IEnumerable <XNode> nodes = doc.DescendantNodes();

問題與答案：

問題 #1 答案： B

問題 #2 答案： D

問題 #3 答案： C

問題 #4 答案： A,C

問題 #5 答案： D