Microsoft UPGTransition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Set 1

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Microsoft UPGTransition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Set 1

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server 2008 database. The database includes a table named dbo.Documents that contains a column with large binary dat a. You are creating the Data Access Layer (DAL). You add the following code segment to query the dbo.Documents table. (Line numbers are included for reference only.)
01public void LoadDocuments(DbConnection cnx)
02{
03var cmd = cnx.CreateCommand();
04cmd.CommandText = "SELECT * FROM dbo.Documents";
05...
06cnx.Open();
07
08ReadDocument(reader); }
You need to ensure that data can be read as a stream. Which code segment should you insert at line 07?

var reader = cmd.ExecuteReader(CommandBehavior.Default);

✘

var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly);

✘

var reader = cmd.ExecuteReader(CommandBehavior.KeyInfo);

✘

var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Communication Foundation (WCF) Data Services service. You discover that when an application submits a PUT or DELETE request to the Data Services service, it receives an error. You need to ensure that the application can access the service. Which header and request type should you use in the application?

an X-HTTP-Method header as part of a POST request ✘ an X-HTTP-Method header as part of a GET request ✘ an HTTP ContentType header as part of a POST request ✘ an HTTP ContentType header as part of a GET request ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server 2008 database. The database includes a table that contains information about all the employees. The database table has a field named EmployeeType that identifies whether an employee is a Contractor or a Permanent employee. You declare the Employee entity base type. You create a new Association entity named Contractor that inherits the Employee base type. You need to ensure that all Contractors are bound to the Contractor class. What should you do?

Modify the .edmx file to include the following line of code. FromRole="EmployeeType" ToRole="Contractor" />

✘ Modify the .edmx file to include the following line of code. ✘ Use the Entity Data Model Designer to set up an association between the Contractor class andEmployeeType. ✘ Use the Entity Data Model Designer to set up a referential constraint between the primary key of theContractor class and EmployeeType. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application uses the ADO.NET Entity Framework to model entities. The application allows users to make changes to entities while disconnected from the central data store. You need to ensure that when the user connects to the central data store and retrieves new data, the application meets the following requirements:

Call the query's Execute method by using the MergeOptions.AppendOnly option. ✘ Call the query's Execute method by using the MergeOptions.OverwriteChanges option. ✘ Call the Refresh method of ObjectContext by using the RefreshMode.StoreWins option. ✘ Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins method. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You are creating the data layer of the application. You write the following code segment. (Line numbers are included for reference only.)
01 public static SqlDataReader GetDataReader(string sql){
02 SqlDataReader dr;
03
04 return dr;
05 }
You need to ensure that the following requirements are met:

using (SqlConnection cnn=new SqlConnection(strCnn)){

try {

SqlCommand cmd =new SqlCommand(sql, cnn);

cnn.Open();

dr = cmd.ExecuteReader();

}

catch {

throw;

}

}

✘

SqlConnection cnn=new SqlConnection(strCnn);SqlCommand cmd =new SqlCommand(sql, cnn);

cnn.Open();

try {

dr = cmd.ExecuteReader();

}

finally {

cnn.Close();

}

✘

SqlConnection cnn=new SqlConnection(strCnn);SqlCommand cmd =new SqlCommand(sql, cnn);

cnn.Open();

try {

dr = cmd.ExecuteReader();

cnn.Close();

}

catch {

throw;

}

✘

SqlConnection cnn=new SqlConnection(strCnn);SqlCommand cmd =new SqlCommand(sql, cnn);

cnn.Open();

try {

dr = cmd.ExecuteReader(CommandBehavior.CloseConnection);

}

catch {

cnn.Close();

throw;

}

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 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.
01DataSet customerOrders = new DataSet();
02customerOrders.EnforceConstraints = true;
03ForeignKeyConstraint ordersFK = new ForeignKeyConstraint("ordersFK",
04customerOrders.Tables["Customers"].Columns["CustomerID"],
05customerOrders.Tables["Orders"].Columns["CustomerID"]);
06
07customerOrders.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?

ordersFK.DeleteRule = Rule.SetDefault;

✘

ordersFK.DeleteRule = Rule.None;

✘

ordersFK.DeleteRule = Rule.SetNull;

✘

ordersFK.DeleteRule = Rule.Cascade;

✔

Answer & Solution Discuss in Board Save for Later

Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server database. You write the following code segment that executes two commands against the database within a transaction. (Line numbers are included for reference only.)
01using (SqlConnection connection = new SqlConnection(cnnStr)) {
02connection.Open();
03SqlTransaction sqlTran = connection.BeginTransaction();
04SqlCommand command = connection.CreateCommand();
05command.Transaction = sqlTran;
06try {
07command.CommandText = "INSERT INTO Production.ScrapReason(Name) VALUES('Wrong size')";
08command.ExecuteNonQuery();
09command.CommandText = "INSERT INTO Production.ScrapReason(Name) VALUES('Wrong color')";
10command.ExecuteNonQuery();
11
12}
You need to log error information if the transaction fails to commit or roll back. Which code segment should you insert at line 11?

sqlTran.Commit();

}

catch (Exception ex) {

sqlTran.Rollback();

Trace.WriteLine(ex.Message); }

✘

sqlTran.Commit();}

catch (Exception ex) {

Trace.WriteLine(ex.Message);

try {

sqlTran.Rollback();

}

catch (Exception exRollback) {

Trace.WriteLine(exRollback.Message);

} } }

✘

catch (Exception ex){Trace.WriteLine(ex.Message);

try{

sqlTran.Rollback();

} catch (Exception exRollback){

Trace.WriteLine(exRollback.Message);

}}

finaly { sqltran.commit( );}}

✘

catch (Exception ex) {sqlTran.Rollback();

Trace.WriteLine(ex.Message);

}

finaly {

try {

sqltran.commit( );

} catch (Exception exRollback) {

Trace.WriteLine(excommit.Message); }}

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application contains the following code segment. (Line numbers are included for reference only.)
01 class DataAccessLayer
02 {
03 private static string connString;
04
05 ...
06 public static DataTable GetDataTable(string command){
07
08 ...
09 }
10 }
You need to define the connection life cycle of the DataAccessLayer class. You also need to ensure that the application uses the minimum number of connections to the database. What should you do?

Insert the following code segment at line 04.

private static SqlConnection conn = new SqlConnection(connString);

public static void Open(){

conn.Open();

}

public static void Close(){

conn.Close();

}

✘

Insert the following code segment at line 04.private SqlConnection conn = new SqlConnection(connString);

public void Open(){

conn.Open();

}

public void Close(){

conn.Close();

}

✘

Replace line 01 with the following code segment.class DataAccessLayer : IDisposable

Insert the following code segment to line 04.

private SqlConnection conn = new SqlConnection(connString);

public void Open(){

conn.Open();

}

public void Dispose(){

conn.Close();

}

✘

Insert the following code segment at line 07.using (SqlConnection conn = new SqlConnection(connString)){

conn.Open();

}

✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You use Microsoft ADO.NET Entity Data Model (EDM) to model entities. You create an entity named Person with a schema defined by the following XML fragment. You need to ensure that entities within the application are able to add properties related to the city, region, and country of Person's address. What should you do?

"Create a new complex type named CAddress that contains the properties for city, region, and country. "Change the Type of the Address property in CPerson to "Self.CAddress". ✘ "Create a SubEntity named Address. "Map the SubEntity to a stored procedure that retrieves city, region,and country. ✘ "Create a new entity named Address. "Add a person ID property to filter the results to display only the City,Region, and Country properties for a specific Person entity. ✘ "Create a view named Name that returns city, region, and country along with person IDs. "Add a WHEREclause to filter the results to display only the City, Region and Country properties for a specific Person entity. ✔

Answer & Solution Discuss in Board Save for Later

Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Communication Foundation (WCF) Data Services service. The service connects to a Microsoft SQL Server 2008 database. The service is hosted by an Internet Information Services (IIS) 6.0 server. You need to ensure that applications authenticate against user information stored in the database before the application is allowed to use the service. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

Configure IIS to require basic authentication. Configure IIS to allow anonymous access. Configure IIS to require Windows authentication. Enable the WCF Authentication Service. Modify the Data Services service to use a Microsoft ASP.NET membership provider.

Answer & Solution Discuss in Board Save for Later

Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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Microsoft UPGTransition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Set 1

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