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最新的 MCTS 070-516 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 contains the following XML document:
<bib> <book title="TCP/IP Illusrated" year="1994">
<author>Author1</author>
</book>
<book title="Programming in UNIX" year="1992">
<author>Author1</author>
<author>Author2</author>
<author>Author3</author>
</book>
<book title="Data on the web" year="2000">
<author>Author4</author>
<author>Author3</author>
</book> </bib>
You add the following code fragment. (Line numbers are included for reference only.)
01 public IEnumerable<XElement> GetBooks(string xml)
02 {
03 XDocument doc = XDocument.Parse(xml);
04 ...
05 }
You need to return a list of book XML element that are authored by Author1. Which code segment should you insert at line 04?

A) return doc.Elements("bib").Elements() .Where(e1 => e1.Elements().Any(e2 => (string)e2 == "Author1"));
B) return doc.Elements("bib").Elements()
.Where(e1 => e1.Elements().Any(e2 => e2.Equals(new XElement("author", "Author1"))));
C) return doc.Element("bib").Elements() .SelectMany(el => el.Elements() .Where(e2 => (string)e2 == "Author1"));
D) return doc.Element("bib").Elements() .SelectMany(el => el.Elements() .Where(e2 => e2.Equals(new XElement("author", "Author1"))));

2. 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. You create a DataSet object in the
application.
You add two DataTable objects named App_Products and App_Categories to the DataSet.
You add the following code segment to populate the DataSet object.
(Line numbers are included for reference only.)
01 public void Fill(SqlConnection cnx, DataSet ds)
02 {
03 var cmd = cnx.CreateCommand();
04 cmd.CommandText = "SELECT * FROM dbo.Products; " + "SELECT * FROM
dbo.Categories";
05 var adapter = new SqlDataAdapter(cmd);
06 ...
07 }
You need to ensure that App_Products and App_Categories are populated from the dbo.Products and
dbo.Categories database tables.
Which code segment should you insert at line 06?

A) adapter.TableMappings.Add("Table", "App_Products"); adapter.TableMappings.Add("Table1", "App_Categories"); adapter.Fill(ds);
B) adapter.TableMappings.Add("Products", "App_Products"); adapter.TableMappings.Add("Categories", "App_Categories"); adapter.Fill(ds);
C) adapter.Fill(ds.Tables["App_Products"]); adapter.Fill(ds.Tables["App_Categories"]);
D) adapter.Fill(ds, "Products"); adapter.Fill(ds, "Categories");

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to several SQL Server databases. You create a function that modifies customer
records that are stored in multiple databases.
All updates for a given record are performed in a single transaction. You need to ensure that all transactions
can be recovered. What should you do?

A) Call the EnlistVolatile method of the Transaction class.
B) Call the RecoveryComplete method of the TransactionManager class.
C) Call the Reenlist method of the TransactionManager class.
D) Call the EnlistDurable method of the Transaction class.

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application that
connects to a database by using the Entity Framework.
You create an Entity Data Model (EDM) by using the Generate from database wizard for the following
tables.

You need to ensure that the EDM contains an entity type named Employee that contains all of the data from
both tables.
What should you do?

A) Create a one-to-one association named CanAccessBuildingsAssociation between the EmployeeAccess entity and the Employee entity.
B) Create an inheritance relationship between the Employee and EmployeeAccess entities, and use CanAccessBuildings as an inheritance condition.
C) Delete the EmployeeAccess entity, create a new property named CanAccessBuildings on the Employee entity, and add a mapping for the new property.
D) Modify the .edmx file to include the following line of code. <NavigationProperty Name="Type" FromRole="EmployeeAccess" ToRole="Employee" />

5. 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 has two DataTable objects that reference the Customers and Orders tables in the
database.
The application contains the following code segment. (Line numbers are included for reference only.)
01 DataSet customerOrders = new DataSet();
02 customerOrders.EnforceConstraints = true;
03 ForeignKeyConstraint ordersFK = new ForeignKeyConstraint("ordersFK",
04 customerOrders.Tables
["Customers"].Columns["CustomerID"],
05 customerOrders.Tables["Orders"].Columns
["CustomerID"]);
06 ...
07 customerOrders.Tables["Orders"].Constraints.Add(ordersFK);
You need to ensure that an exception is thrown when you attempt to delete Customer records that have
related Order records.
Which code segment should you insert at line 06?

A) ordersFK.DeleteRule = Rule.Cascade;
B) ordersFK.DeleteRule = Rule.SetDefault;
C) ordersFK.DeleteRule = Rule.SetNull;
D) ordersFK.DeleteRule = Rule.None;

問題與答案：