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Microsoft 70-516 Exam Syllabus Topics:

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

1. The user interface requires that a paged view be displayed of all the products sorted in alphabetical order.
The user interface supplies a current starting index and a page size in variables named startIndex and
pageSize of type int.
You need to construct a LINQ expression that will return the appropriate Parts from the database from an
existing
ContosoEntities context object named context. You begin by writing the following expression:
context.Parts
Which query parts should you use in sequence to complete the expression?
(To answer, move the appropriate actions from the list of actions to the answer area and arrange them in
the correct order.)

A) .Skip(startIndex)
B) .Take(pageSize);
C) .OrderBy(x => x.Name)
D) .Skip(pageSize)
E) .Take(startIndex)

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that
uses the Entity Framework.
The application has an entity model that includes SalesTerritory and SalesPerson entities as shown in the
following diagram.

You need to calculate the total bonus for all sales people in each sales territory. Which code segment should you use?

A) from territory in model.SalesTerritories group territory by territory.SalesPerson into personByTerritories select new {
SalesTerritory = personByTerritories.Key,
TotalBonus = personByTerritories.Key.Sum(person => person.Bonus)
};
B) model.SalesPersons .GroupBy(person => person.SalesTerritory) .SelectMany(group => group.Key.SalesPersons) .Sum(person => person.Bonus);
C) model.SalesTerritories .GroupBy(territory => territory.SalesPersons) .SelectMany(group => group.Key) .Sum(person => person.Bonus);
D) from person in model.SalesPersons group person by person.SalesTerritory into territoryByPerson select new {
SalesTerritory = territoryByPerson.Key,
TotalBonus = territoryByPerson.Sum(person => person.Bonus)
};

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

4. 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?

A) Set the Delay Loaded property on the Productlmage property of the Product entity to True.
B) When the context is initialized, specify that the Productlmage property should not be retrieved by using DataLoadOptions
C) Set the Update Check property on the Productlmage property of the Product entity to Never.
D) Set the Auto-Sync property on the Productlmage property of the Product entity to Never.

5. Refer to the following lines in the case study: PA40 in \Model\Part.cs, PR16 in\Model\Product.cs, and CT14 in \Model\Component.cs
The application must create XML files that detail the part structure for any product. The XML files must use the following format:
<?xml version="1.0" encoding="utf-8"?>
<product name="Brush" description="Brush product" productType="1">
<component name="Handle" description="Handle" partType="2">
<component name="Screw" description="Screw" partType="3">
<component name="Wood" description="Wooden shaft" partType="45">
</component>
<component name="Head" description="Head" partType="5">
<component name="Screw" description="Screw" partType="3">
<component name="Bristles" description="Bristles" partType="4">
</component> </product>
You need to update the application to support the creation of an XElement object having a structure that will
serialize to the format shown above.
What should you do? (Each correct answer presents part of the solution. Choose two.)

A) Insert the following code segment at line CT14 in \Model\Component.cs:
return new XElement("component, new XElement("name", this.Name),
new XElement("description", this.Description),
new XElement("partType", this.PartType));
B) Insert the following code segment at line CT14 in \Model\Component.cs:
return new XElement("component, new XAttribute("name", this.Name),
new XAttribute("description", this.Description),
new XAttribute("partType", this.PartType));
C) Insert the following code segment at line PR16 in \Model\Product.cs:
return new XElement("product, new XAttribute("name", this.Name),
new XAttribute("description", this.Description),
new XAttribute("productType", this.ProductType));
D) Insert the following code segment at line CT14 in \Model\Component.cs:
return new XElement("component, new XAttribute("name", this.Name),
new XElement("description", this.Description),
new XElement("partType", this.PartType));
E) Insert the following code segment at line PR16 in \Model\Product.cs:
return new XElement("product, new XElement("name", this.Name),
new XElement("description", this.Description),
new XElement("productType", this.ProductType));
F) Insert the following code segment at line PR16 in \Model\Product.cs:
return new XElement("product, new XAttribute("name", this.Name),
new XElement("description", this.Description),
new XElement("productType", this.ProductType));

Solutions: