最新的Microsoft TS: Accessing Data with Microsoft .NET Framework 4 - 070-516免費考試真題
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 application uses a Microsoft ADO.NET SQL Server managed provider.
"Data Source=myServerAddress; Initial Catalog=myDataBase; User Id=myUsername; Password=secret;"
You need to ensure that the database credentials are secure. Which is the correct Property to insert?
"Data Source=myServerAddress; Initial Catalog=myDataBase; User Id=myUsername; Password=secret;"
You need to ensure that the database credentials are secure. Which is the correct Property to insert?
正確答案: C
說明：（僅 Fast2test 成員可見）
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.
You need to ensure that the model and mapping files are not deployed as application resources. What
should you do?
The application uses the ADO.NET Entity Framework to model entities.
You need to ensure that the model and mapping files are not deployed as application resources. What
should you do?
正確答案: B
You use Microsoft .NET Framework 4.0 to develop an application that uses LINQ to SQL.
The Product entity in the LINQ to SQL model contains a field named Productlmage. The Productlmage field
holds a large amount of binary data.
You need to ensure that the Productlmage field is retrieved from the database only when it is needed by the
application. What should you do?
The Product entity in the LINQ to SQL model contains a field named Productlmage. The Productlmage field
holds a large amount of binary data.
You need to ensure that the Productlmage field is retrieved from the database only when it is needed by the
application. What should you do?
正確答案: C
說明：（僅 Fast2test 成員可見）
The database contains orphaned Color records that are no longer connected to Part records.
You need to clean up the orphaned records. You have an existing ContosoEntities context object named
context.
Which code segment should you use?
You need to clean up the orphaned records. You have an existing ContosoEntities context object named
context.
Which code segment should you use?
正確答案: A
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 conceptual schema definition language (CSDL) file contains the following XML fragment.
<EntityType Name="Contact"> ... <Property Name="EmailPhoneComplexProperty"
Type="AdventureWorksModel.EmailPhone" Nullable="false" />
</EntityType>
...
<ComplexType Name="EmailPhone">
<Property Type="String" Name="EmailAddress" MaxLength="50" FixedLength="false" Unicode="true" />
<Property Type="String" Name="Phone" MaxLength="25" FixedLength="false" Unicode="true" /> </ComplexType>
You write the following code segment. (Line numbers are included for reference only.)
01 using (EntityConnection conn = new EntityConnection("name=AdvWksEntities"))
02 {
03 conn.Open();
04 string esqlQuery = @"SELECT VALUE contacts FROM
05 AdvWksEntities.Contacts AS contacts
06 WHERE contacts.ContactID == 3";
07 using (EntityCommand cmd = conn.CreateCommand())
08 {
09 cmd.CommandText = esqlQuery;
10 using (EntityDataReader rdr = cmd.ExecuteReader())
11 {
12 while (rdr.Read())
13
{
14
...
15
}
16
}
17
}
18 conn.Close(); 19 }
You need to ensure that the code returns a reference to a ComplexType entity in the model named
EmailPhone.
Which code segment should you insert at line 14?
The application uses the ADO.NET Entity Framework to model entities.
The conceptual schema definition language (CSDL) file contains the following XML fragment.
<EntityType Name="Contact"> ... <Property Name="EmailPhoneComplexProperty"
Type="AdventureWorksModel.EmailPhone" Nullable="false" />
</EntityType>
...
<ComplexType Name="EmailPhone">
<Property Type="String" Name="EmailAddress" MaxLength="50" FixedLength="false" Unicode="true" />
<Property Type="String" Name="Phone" MaxLength="25" FixedLength="false" Unicode="true" /> </ComplexType>
You write the following code segment. (Line numbers are included for reference only.)
01 using (EntityConnection conn = new EntityConnection("name=AdvWksEntities"))
02 {
03 conn.Open();
04 string esqlQuery = @"SELECT VALUE contacts FROM
05 AdvWksEntities.Contacts AS contacts
06 WHERE contacts.ContactID == 3";
07 using (EntityCommand cmd = conn.CreateCommand())
08 {
09 cmd.CommandText = esqlQuery;
10 using (EntityDataReader rdr = cmd.ExecuteReader())
11 {
12 while (rdr.Read())
13
{
14
...
15
}
16
}
17
}
18 conn.Close(); 19 }
You need to ensure that the code returns a reference to a ComplexType entity in the model named
EmailPhone.
Which code segment should you insert at line 14?
正確答案: C
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?
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?
正確答案: D
說明：（僅 Fast2test 成員可見）
You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database. The application uses the ADO.NET Entity
Framework to model entities.
The database includes objects based on the exhibit (click the Exhibit button).
The application includes the following code segment. (Line numbers are included for reference only.)
01 using(AdventureWorksEntities context = new AdventureWorksEntities())
02 {
03 ...
04 foreach (SalesOrderHeader order in customer.SalesOrderHeader)
05 {
06 Console.WriteLine(String.Format("Order: {0} ",
order.SalesOrderNumber));
07 foreach (SalesOrderDetail item in order.SalesOrderDetail)
08 {
09 Console.WriteLine(String.Format("Quantity: {0} ", item.Quantity));
10 Console.WriteLine(String.Format("Product: {0} ",
item.Product.Name));
11 }
12 }
13 }
You want to list all the orders for a specific customer. You need to ensure that the list contains following fields:
-Order number
-Quantity of products
-Product name
Which code segment should you insert in line 03?
The application connects to a Microsoft SQL Server database. The application uses the ADO.NET Entity
Framework to model entities.
The database includes objects based on the exhibit (click the Exhibit button).
The application includes the following code segment. (Line numbers are included for reference only.)
01 using(AdventureWorksEntities context = new AdventureWorksEntities())
02 {
03 ...
04 foreach (SalesOrderHeader order in customer.SalesOrderHeader)
05 {
06 Console.WriteLine(String.Format("Order: {0} ",
order.SalesOrderNumber));
07 foreach (SalesOrderDetail item in order.SalesOrderDetail)
08 {
09 Console.WriteLine(String.Format("Quantity: {0} ", item.Quantity));
10 Console.WriteLine(String.Format("Product: {0} ",
item.Product.Name));
11 }
12 }
13 }
You want to list all the orders for a specific customer. You need to ensure that the list contains following fields:
-Order number
-Quantity of products
-Product name
Which code segment should you insert in line 03?
正確答案: B
The application populates a DataSet object by using a SqlDataAdapter object.
You use the DataSet object to update the Categories database table in the database. You write the
following code segment.
(Line numbers are included for reference only.)
01 SqlDataAdapter dataAdpater = new SqlDataAdapter("SELECT CategoryID,
CategoryName FROM Categories", connection);
02 SqlCommandBuilder builder = new SqlCommandBuilder(dataAdpater);
03 DataSet ds = new DataSet();
04 dataAdpater.Fill(ds);
05 foreach (DataRow categoryRow in ds.Tables[0].Rows)
06 {
07 if (string.Compare(categoryRow["CategoryName"].ToString(), searchValue,
true) == 0)
08 {
09 ...
10 }
11 }
12 dataAdpater.Update(ds);
You need to remove all the records from the Categories database table that match the value of the
searchValue variable.
Which line of code should you insert at line 09?
You use the DataSet object to update the Categories database table in the database. You write the
following code segment.
(Line numbers are included for reference only.)
01 SqlDataAdapter dataAdpater = new SqlDataAdapter("SELECT CategoryID,
CategoryName FROM Categories", connection);
02 SqlCommandBuilder builder = new SqlCommandBuilder(dataAdpater);
03 DataSet ds = new DataSet();
04 dataAdpater.Fill(ds);
05 foreach (DataRow categoryRow in ds.Tables[0].Rows)
06 {
07 if (string.Compare(categoryRow["CategoryName"].ToString(), searchValue,
true) == 0)
08 {
09 ...
10 }
11 }
12 dataAdpater.Update(ds);
You need to remove all the records from the Categories database table that match the value of the
searchValue variable.
Which line of code should you insert at line 09?
正確答案: D
說明：（僅 Fast2test 成員可見）
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.)
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.)
正確答案: C,D
You add a table to the database to track changes to part names. The table stores the following row values:
-the username of the user who made the change
-a part ID
-the new part name
-a DateTime value
You need to ensure detection of unauthorized changes to the row values.
You also need to ensure that database users can view the original row values.
-the username of the user who made the change
-a part ID
-the new part name
-a DateTime value
You need to ensure detection of unauthorized changes to the row values.
You also need to ensure that database users can view the original row values.
正確答案: C
You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server database. The application stores encrypted credit card
numbers in the database.
You need to ensure that credit card numbers can be extracted from the database.
Which cryptography provider should you use?
The application connects to a Microsoft SQL Server database. The application stores encrypted credit card
numbers in the database.
You need to ensure that credit card numbers can be extracted from the database.
Which cryptography provider should you use?
正確答案: A
說明：（僅 Fast2test 成員可見）
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 includes a Customer entity along with a CustomerKey property of the Guid type as shown in
the following exhibit:
You discover that when the application adds a new instance of a Customer, calling the SaveChanges
method
results in the following error message: "Server generated keys are only supported for identity columns."
You need to ensure that the application can add new Customer entities. What should you do?
The application uses the ADO.NET Entity Framework to model entities.
The application includes a Customer entity along with a CustomerKey property of the Guid type as shown in
the following exhibit:
You discover that when the application adds a new instance of a Customer, calling the SaveChanges
method
results in the following error message: "Server generated keys are only supported for identity columns."
You need to ensure that the application can add new Customer entities. What should you do?
正確答案: A
說明：（僅 Fast2test 成員可見）