Microsoft 70-516 : TS: Accessing Data with Microsoft .NET Framework 4

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

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 database. You use Entity SQL of the ADO.NET Entity
Framework to retrieve data from the database.
You need to define a custom function in the conceptual model. You also need to ensure that the function
calculates a value based on properties of the object.
Which two XML element types should you use? (Each correct answer presents part of the solution. Choose
two.)

A) Function
B) Association
C) DefiningExpression
D) FunctionImport
E) Dependent

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.
The application uses the following object query to load a product from the database.
(Line numbers are included for reference only.)
01 using (AdventureWorksEntities advWorksContext = new AdventureWorksEntities
())
02 {
03 ObjectQuery <Product> productQuery = advWorksContext.Product.Where
("it.ProductID = 900");
04 ...
05 }
You need to log the command that the query executes against the data source. Which code segment should you insert at line 04?

A) Trace.WriteLine(productQuery.ToTraceString());
B) Trace.WriteLine(productQuery.ToString());
C) Trace.WriteLine(((IQueryable)productQuery).Expression);
D) Trace.WriteLine(productQuery.CommandText);

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application. You use the ADO.NET Entity Framework Designer to model entities as shown in the following diagram.

You create an ObjectContext instance named objectContext1 and use it to create a SalesPerson instance
named person1.
You create an ObjectContext instance named objectContext2 and use it to create a SalesTerritory instance
named territory1.
You need to create and persist a relationship between person1 and terrotory1. What should you do?

A) Attach person1 to objectContext2. Attach territory1 to objectContext1. Set the SalesTerritory property of person1 to territory1. Call SaveChanges on both objectContext1 and objectContext2.
B) Attach person1 to objectContext2. Detach territory1 from objectContext2. Set the SalesTerritory property of person1 to territory1. Call Refresh on objectContext1.
C) Detach person1 from objectContext1. Attach person1 to objectContext2. Set the SalesTerritory property of person1 to territory1. Call SaveChanges on objectContext2.
D) Detach person1 from objectContext1. Detach territory1 from objectContext2. Set the SalesTerritory property of person1 to territory1. Call Refresh on both objectContext1 and objectContext2.

4. 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
where p.Color == "Black, Red"
select p;
foreach(var product in prod){
product.ListPrice = product.StandardCost * 1.5M;
}
dc.SubmitChanges();
B) 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();
C) 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();
D) 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();

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a Microsoft ASP.NET
application.
The application connects to a Microsoft SQL Server database. The application is hosted on a Web server
along with other applications.
You need to secure the transmission of data between the application and the database.
You need to achieve this goal without affecting other applications. What should you do?

A) Use encryption to store sensitive data in the database.
B) Use Internet Protocol Security (IPSec) to secure the communication channel.
C) Encrypt the connection string.
D) Use Secure Sockets Layer (SSL) to establish connections to the database.

Solutions: