CertifyMe. CertifyMe

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1 CertifyMe Number: Passing Score: 700 Time Limit: 120 min File Version: CertifyMe

2 Exam A QUESTION 1 You are creating a Windows application by using the.net Framework 3.5. You plan to develop utility classes for the application. The classes will provide a data access layer, a business logic layer, and a presentation layer. The presentation layer utility class provides functions for the controls on the forms. You need to ensure that the utility classes can be reused in other applications. You want to achieve this goal by using minimum possible development effort. What should you do? A. Create a Web service that references the utility classes. B. Create a utility class for the data access layer, business logic layer, and the presentation layer as a class library. C. Create a utility class for the data access layer and the business logic layer as a class library. Create a separate utility class for the presentation layer as an executable. D. Create a utility class as a Windows Presentation Foundation (WPF) control for the data access layer and the business logic layer. Create a separate utility class for the presentation layer as a console application. Correct Answer: B /Reference: QUESTION 2 2:You are creating a Windows application by using the.net Framework 3.5. The application will be used for telephone directory management. The application has the following specifications: * It stores data in a Microsoft SQL Server 2008 database instance. * It uses the LINQ to SQL model.it stores the photograph of each directory member in the Picture column of the DirectoryEntry table. * It displays the directory information in a DataGridView control. * It supports expansion of rows of the DataGridView control to display the complete photograph of the directory member. The application is frequently used across remote or slow database connections. You need to implement the lazy load technique to load the photographs from the database. You also need to ensure that the implementation has minimum effect on the database connection. What should you do? A. Configure the Picture property of the DirectoryEntry entity in the LINQ to SQL model.set the Delay Loaded property to True. B. Identify the DataGridView column that contains the photograph. Set the Visible property of the column to False.Identify the DataGridView column that contains the photograph. Set the Visible property of the column to True when the row that contains the photograph is expanded. C. Create a DataLoadOptions object in the method that is used to execute the LINQ query.call the LoadWith method of the object along with the de => de.picture statement.use the DataLoadOptions object when the statement is executed. D. Modify the method that executes the LINQ query to accept a Boolean parameter which indicates whether a photograph is to be loaded.include a data-shaping clause to exclude the Picture column from the list of columns that are returned if the Boolean parameter is False.Execute the method initially by setting the Boolean parameter to True.Repeat the method execution by setting the Boolean parameter to False when the DataGridView row is expanded. Correct Answer: A

3 /Reference: QUESTION 3 You are creating a Windows application by using the.net Framework 3.5. The application contains a form to enter user details. The application must capture the preferred search engine as part of input data. You discover that the preferred search engine can be a known search engine or an unknown one. You need to allow the user to select a value for the preferred search engine from a list of search engines. You also need to allow the user to enter a value for the search engine in the same list. Which control should you use? A. A ListBox control that has the SelectionMode property set to 1 B. A TextBox control that has the AutoCompleteSource property set to Custom C. A ComboBox control that has the DropDownStyle property set to DropDown D. A ComboBox control that has the DropDownStyle property set to DropDownList Correct Answer: C /Reference: QUESTION 4 4:You are creating a Windows application by using the.net Framework 3.5. The application must meet the following requirements: * It records the details of the users who modify sensitive information. * It requires a context-related stack dump for the details. * It is executed by using the local user account without administrative privileges. You need to ensure that the requirements are met by using minimum possible development effort. What should you do? A. Store the user details to a text file when a user modifies sensitive information. B. Store the user details as a log entry to the Windows application log when a user modifies sensitive information. C. Use the Trace.WriteLine method to generate trace information when a user modifies sensitive information. Configure the TraceListener object to save the trace information. D. Add performance counters to the application for each set of sensitive information. Write a code segment to record the details of users who modify sensitive information. Correct Answer: C /Reference: QUESTION 5 5:You create a Windows application by using the.net Framework 3.5. You plan to deploy an application by using the ClickOnce deployment method. The application has the following specifications: * It contains multiple components. * It is based on the.net Framework 3.5. * The.NET Framework 3.5 is not installed on all the client computers. You need to install the.net Framework 3.5 on the client computers during the application deployment process.

4 What should you do? A. Use the bootstrapping feature of the ClickOnce deployment method. B. Include the.net Framework 3.5 in the platform dependencies of the ClickOnce deployment method. C. Change the method for deployment to the Microsoft Windows Installer (MSI) packages and disable the bootstrapping feature. D. Use registration-free Component Object Model (COM) components for deployment and set the Isolated property to TRUE. Correct Answer: A /Reference: QUESTION 6 You are creating a Windows application by using the.net Framework 3.5. The application uses multiple threads. You need to ensure that any exceptions that occur while executing the application are reported to the common exception handler. You want to achieve the goal by using minimum development effort. What should you do? A. Place a TRY CATCH statement around every method in the application.report any exceptions to the common handler. B. Place a TRY CATCH statement inside the Form_Load event in the main form, and report any exceptions to the common handler.handle the Application.ThreadExit event, and report any exceptions to the common handler. C. Place a TRY CATCH statement around the call to the Application.Run method, and report any exceptions to the common handler.handle the Application.ThreadException event, and report any exceptions to the common handler. D. Place a TRY CATCH statement around every call to the System.Threading.Thread.Start method in the application.report any System.Threading.Thread.ThreadStateException to the common handler. Correct Answer: C /Reference: QUESTION 7 You create a Windows application by using the.net Framework 3.5. The application is named APP1. APP1 has the following specifications: * It merges information from text files. * It reads each text file as a string. * It runs on a server computer named Server1.

5 Another application named APP2 also runs on Server1. You discover that when a function is used to merge the text files, APP1 consumes additional memory. This additional memory consumption affects the operations of APP2. You need to modify the design of APP1 to ensure minimum effect on APP2. What should you do? A. Use the + operator for the merge process. B. Use the StringBuilder.Append method for the merge process. C. Write a code segment to perform the merge process on a new thread. D. Write a code segment in a separate project to perform the merge process. Configure the project to start the merge operation as a new process. Correct Answer: B /Reference: QUESTION 8 8:You are creating a Windows application by using the.net Framework 3.5. The application will be used to retrieve information about the technical skills of the employees. The data will be retrieved from the following related tables on a Microsoft SQL Server 2008 database instance by using LINQ to SQL: * EmployeeSkills table * TechnicalSkills table The application must retrieve data from the TechnicalSkills table only when the correspondingemployeeskills rating value is 3. In addition, the application must minimize data returned and prevent duplicate information from being returned. You need to meet the outlined requirements in one roundtrip to the database.what should you do? A. Use a LINQ query to join EmployeeSkills data to TechnicalSkills data based on the skill rating level. B. Use a LINQ query along with a Where clause to select EmployeeSkills records only when the skills rating value is equal to 3. C. Set the DataContext. DeferredLoadingEnabled setting to False. Allow the records to be accessed by the caller on demand. D. Set the DataContext. DeferredLoadingEnabled setting to True. Use the DataContext.DataLoadOptions.AssociateWith method to associate EmployeeSkills data with TechnicalSkills data based on the skill rating value. Correct Answer: D /Reference: QUESTION 9 You are creating a Windows application by using the.net Framework 3.5. The application has to be configured for deployment to client computers. You need to ensure that the application meets the following requirements: * The application state is stored for each instance. * The administrator can configure the general look and feel of the application from a single location. What should you do?

6 A. Serialize and de-serialize a formatter object. B. Save the application state in the App.config file. C. Save the application state in a central database. D. Save the application state in the registry key under HKEY_CURRENT_USER. Correct Answer: C /Reference: QUESTION 10 You are creating a Windows application by using the.net Framework 3.5. The application connects to a database within the corporate network. It retrieves data from a read-only database. The database contains a table named Customers. An XML file that contains new customer data is periodically provided to the application. The XML file has the following specifications: * It has the same schema as that of the Customers table. * It will be integrated into the Customers table. * It will be removed after data integration. The application requires data from the Customers table and the XML file to bind to a DataGridView control. You need to ensure that data can be retrieved together from the two data sources by using minimum development effort. What should you do? A. Load data from the two data sources into DataSet objects. Merge the data present in the DataSet objects. B. Read data from the Customers table as an XML object. Use the XSLT style sheet to merge data with the original XML file. C. Load data from the Customers table into a new XML file. Open the XmlReader object to read the two XML files. Merge the XML files. D. Create a temporary table in the database. Load data from the XML file into the temporary table. Retrieve data simultaneously from the temporary table and the Customers table. Correct Answer: A /Reference: QUESTION 11 You are creating a Windows application by using the.net Framework 3.5. The application will be deployed by using the ClickOnce deployment. The application must support offline use. The application must also have minimum dependency on external components. You need to choose the most secure data storage tool for your application. Which data storage tool should you use? A. XML file B. Microsoft Office Access 2007 database C. Microsoft SQL Server 2008 Express Edition database D. Microsoft SQL Server 2008 Compact Edition database Correct Answer: D

7 /Reference: QUESTION 12 You create a windows application by using the.net Framework 3.5. The application has a business layer and a data access layer class library. You create a Web UI by using ASP.NET for the application. You discover excessive code repetition on the flow of the application between the Windows Forms UI and the Web UI. You need to increase code reuse between the applications. What should you do? A. Create a single class library for the business layer and the data access layer. B. Create a UI Process layer as a class library. C. Compile the Windows Forms application as a class library to reference the ASP.NET Web application. D. Create a service layer to shield the business layer and the data access layer. Correct Answer: B /Reference: QUESTION 13 You are creating a Windows application by using the.net Framework 3.5. The application stores customer details in a database within the corporate network. The application has a form that contains a TextBox control to capture the customer name. The auto-complete feature must be used in the TextBox control to display the customer names entered since the application started.you need to ensure that the application meets the following requirements: * It is available in the offline mode. * It provides the fastest response time for the auto-complete feature. What should you do? A. Implement one-level caching by caching all customer records within a DataSet object in the application. B. Implement one-level caching by caching all customer records within a Microsoft SQL Server 2008 Express Edition database. C. Implement two-level caching. First, cache all customer records within a DataSet object in the application. Then, cache the customer names entered in the TextBox control to a Microsoft SQL Server 2008 Compact Edition database. D. Implement two-level caching. First, cache all customer records within a Microsoft SQL Server 2008 Compact Edition database. Then, cache the customer names entered in the TextBox control within a List<T> object in the application. Correct Answer: D /Reference: QUESTION 14 You create a Windows application by using the.net Framework 3.5. You plan to use ClickOnce deployment. The application will run in a partial trust environment. You need to store user preferences for the application. What should you do?

8 A. Save data to isolated storage. B. Save data to the application folder. C. Save data to a network file share. D. Save data to the Windows Temporary Files folder. Correct Answer: A /Reference: QUESTION 15 You are creating a Windows application by using the.net Framework 3.5. The application uses Microsoft SQL Server 2008 authentication to connect to a relational database. You need to devise a storage strategy for the connection string to prevent unauthorized users from accessing the information. What should you do? A. Embed the connection string in the application code. B. Store the connection string in a protected configuration section. C. Store the connection string by using the isolated storage mechanism. D. Store the connection string to a location in the %LOCALAPPDATA% folder of the application. Correct Answer: B /Reference: QUESTION 16 You create a Windows application by using the.net Framework 3.5. The application is used by the employees and managers of a bank. You plan to implement role-based security for the application by using the Identity and Principal features provided by the.net Framework 3.5. You need to ensure that application meets the following requirements: * All users are authenticated against credentials stored in the application database. * Only the managers can access certain features in the application. What should you do? A. Manage roles as group accounts in Windows, and use the WindowsIdentity and WindowsPrincipal classes in the application. B. Manage roles in the database, and use the WindowsIdentity and WindowsPrincipal classes in the application. C. Manage roles as group accounts in Windows, and use the GenericIdentity and WindowsPrincipal classes in the application. D. Manage roles in the database, and use the GenericIdentity and GenericPrincipal classes in the application. Correct Answer: D /Reference: QUESTION 17

9 You are creating a Windows application by using the.net Framework 3.5. The application uses a Web Service to allow managers to retrieve employee performance data. The application allowsmanagers to access and modify data offline. The employee performance data is sensitive and must be protected. You need to implement an offline storage strategy. What should you do? A. Save a local XML file that contains the data for the employees selected in Isolated Storage. B. Save a local XML file that contains the data for the employees selected in the home directory of the application. C. Use the System.Security.Cryptography.MD5CryptoServiceProvider to encrypt a local XML file that contains only the data for the employees selected. D. Use the System.Security.Cryptography.TripleDESCryptoServiceProvider to encrypt a local XML file that contains only the data for the employees selected. Correct Answer: D /Reference: QUESTION 18 You are creating a Windows application by using the.net Framework 3.5. The application will be used by the shipping department of your company. The application contains a form named SchedulingForm. You plan to design a strategy to ensure the following accessibility criteria: * SchedulingForm is accessible only to users logged on by using a particular Windows account. * The Windows account belongs to a local group named Managers. You need to implement the strategy by using the minimum amount of development effort. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.) A. Create custom components that implement the IIdentity and IPrincipal classes. B. Call the AppDomain.CurrentDomain.SetPrincipalPolicy method that has the PrincipalPolicy enumeration value set to WindowsPrincipal. C. Create a GenericIdentity object that has the current user and the role membership information. Attach the object to the current thread. D. Create a GenericIdentity object that has the current user and the role membership information. Attach the object to the current thread. E. Use the Thread.CurrentPrincipal.IsInRole method to test the role membership. If the user does not belong to the Managers group, hide access to SchedulingForm. Correct Answer: BE /Reference: QUESTION 19 You create Windows Forms applications by using the.net Framework 3.5. You plan to deploy a new application. You need to ensure that on deployment, the application meets the following requirements: * It is executed on the client computer. * It is removed from the client computer after the application is closed. * It is not displayed in the Add/Remove programs panel on the client computer.

10 What should you do? A. Deploy the application to a central network server.access the application by using the Remote Desktop Connection tool. B. Deploy the application by using the ClickOnce technology.use the Mage.exe tool to set the Online Only option in the deployment manifest. C. Deploy the application by using the ClickOnce technology.set the Install attribute of the deployment tag to true in the deployment manifest. D. Deploy the application to a CD-ROM by using the ClickOnce technology.execute the application from the CD-ROM. Correct Answer: B /Reference: QUESTION 20 You create Windows Forms applications by using the.net Framework 3.5. You create a new application for Windows Vista client computers. The application requires elevated access to read files from the local file system. You need to ensure that the application requires elevated permissions on execution. What should you do? A. Create a new certificate trust list (CTL). Use the CertMgr.exe tool to install the CTL on the local computer. B. Create a new certificate trust list (CTL). Install the CTL on the server that has the ClickOnce application published. C. Create a manifest that includes the <requestedexecutionlevel level="asinvoker"/> tag. Add the manifest to the executable file of the application. D. Create a manifest that includes the <requestedexecutionlevel level="requireadministrator"/> tag. Add the manifest to the executable file of the application. Correct Answer: D /Reference: QUESTION 21 You create Windows Forms applications by using the.net Framework 3.5. You plan to use the Windows Installer to deploy a new application. The application must meet the following requirements: * Support deployment to 32-bit and 64-bit operating systems. * Use the 64-bit Program Files folder when deployed to 64-bit platforms. You need to ensure that the application is deployed appropriately.what should you do? A. Create a single MSI file.add a launch condition that is set to Version NT64. B. Create a single MSI file.add a launch condition that is set to NOT Version NT64. C. Create an MSI file that is targeted to 64-bit platforms.create an MSI file that is targeted to 32-bit platforms. D. Create a single MSI file.create a merge module that contains the 32-bit and 64-bit code. Correct Answer: C

11 /Reference: QUESTION 22 You are creating a Windows Forms application that has the print functionality by using the.net Framework 3.5. You implement the PrintPage page event for the form. You associate an instance of the PrintDocument control along with an instance of the PrintPreviewDialog control named prevdialog1. You want to set the default size of the PrintPreviewDialog class to full screen. You need to provide a print preview for the user by adding a code segment to the Click event of the button on the form. Which code segment should you use? A. prevdialog1.width = Screen.PrimaryScreen.Bounds.Width; prevdialog1.height = Screen.PrimaryScreen.Bounds.Height; prevdialog1.showdialog(); B. prevdialog1.width = 1024; prevdialog1.height = 768; prevdialog1.showdialog(); C. prevdialog1.width = prevdialog1.printpreviewcontrol.width; prevdialog1.height = prevdialog1.printpreviewcontrol.height; prevdialog1.showdialog(); D. prevdialog1.width = prevdialog1.printpreviewcontrol.width; prevdialog1.height = prevdialog1.printpreviewcontrol.height; prevdialog1.update(); Correct Answer: A /Reference: QUESTION 23 You are creating a Windows application by using the.net Framework 3.5. The application processes a large number of records. The records are processed on a separate thread. Occasionally, the record processing takes a long time. You add a Cancel button to the form. You also add an AutoResetEvent object on the user interface thread, and set the default value of the object to false. You plan to perform the following steps in sequence: * After every record is processed, read the value of the AutoResetEvent object by using the AutoResetEvent.WaitOne method. * When the value of the AutoResetEvent object is True, discontinue the record processing. You need to modify the Click event handler of the Cancel button to change the value of the AutoResetEvent object. What should you do? A. Call the EndInvoke method. B. Call the Thread.Abort method. C. Call the Set method of the AutoResetEvent object. D. Call the Reset method of the AutoResetEvent object. Correct Answer: C /Reference:

12 QUESTION 24 You are creating a Windows Forms application by using the.net Framework 3.5. You have implemented the PrintPage event to send the page output to the printer. The users must select the printer and the page range before printing. You need to ensure that users can print the content of the form by clicking the button control. Which code segment should you use? A. PageSetupDialog pagesetupdialog1 = new PageSetupDialog(); pagesetupdialog1.document = printdocument1; DialogResult result = pagesetupdialog1.showdialog(); if(result == DialogResult.OK) printdocument1.print(); B. PageSetupDialog pagesetupdialog1 = new PageSetupDialog(); pagesetupdialog1.document = printdocument1; DialogResult result = pagesetupdialog1.showdialog(); if (result == DialogResult.Yes) printdocument1.print(); C. PrintDialog printdialog1 = new PrintDialog(); printdialog1.allowsomepages = true; printdialog1.document = printdocument1; DialogResult result = printdialog1.showdialog(); if (result == DialogResult.OK) printdocument1.print(); D. PrintDialog printdialog1 = new PrintDialog(); printdialog1.allowsomepages = true; printdialog1.document = printdocument1; DialogResult result = printdialog1.showdialog(); if (result == DialogResult.Yes) printdocument1.print(); Correct Answer: C /Reference: QUESTION 25 You are creating a Windows application for graphical image processing by using the.net Framework 3.5. You create an image processing function and a delegate. You plan to invoke the image processing function by using the delegate. You need to ensure that the calling thread meets the following requirements: * It is not blocked when the delegate is running. * It is notified when the delegate is complete. What should you do? A. Call the Invoke method of the delegate. B. Call the BeginInvoke and EndInvoke methods of the delegate in the calling thread. C. Call the BeginInvoke method by specifying a callback method to be executed when the delegate is complete. Call the EndInvoke method in the callback method.

13 D. Call the BeginInvoke method by specifying a callback method to be executed when the delegate is complete. Call the EndInvoke method of the delegate in the calling thread. Correct Answer: C /Reference: QUESTION 26 You are creating a Windows application by using the.net Framework 3.5. You plan to create a form that might result in a time-consuming operation. You use the QueueUserWorkItem method and a Label control named lblresult. You need to update the users by using the lblresult control when the process has completed the operation. Which code segment should you use? A. private void DoWork(object myparameter) // thread work this.invoke(new MethodInvoker(ReportProgress)); private void ReportProgress() this.lblresult.text = "Finished Thread"; B. private void DoWork(object myparameter) // thread work this.lblresult.text = "Finishe Thread"; C. private void DoWork(object myparameter) // thread work System.Threading.Monitor.Enter(this); this.lblresult.text = "Finished Thread"; System.Threading.Monitor.Exit(this); D. private void DoWork(object myparameter) // thread work System.Threading.Monitor.TryEnter(this); ReportProgress(); private void ReportProgress() this.lblresult.text = "Finishe Thread"; Correct Answer: A /Reference: QUESTION 27 You are creating a Windows application by using the.net Framework 3.5. You add a BackgroundWorker component to a Windows form to handle a time-consuming operation. You add a Cancel button to the form.

14 You need to ensure that when the Cancel button is pressed, the background task is cancelled. What should you do? A. Set the DoWorkEventArgs.Cancel property to False in the DoWork event handler of BackgroundWorker. B. Call the BackgroundWorker.CancelAsync() method from the OnClick event handler of the Cancel button. C. Call the BackgroundWorker.CancelAsync() method from the DoWork event handler of the BackgroundWorker. D. Stop the process in the OnClick event handler of the Cancel button if the BackgroundWorker.CancellationPending property is True. Correct Answer: B /Reference: QUESTION 28 You are creating a Windows application by using the.net Framework 3.5. You create an instance of the BackgroundWorker component named backgroundworker1 to asynchronously process time-consuming reports in the application. You write the following code segment in the application. (Line numbers are included for reference only.) 01 private voidbackgroundworker1_runworkercompleted(object sender, RunWorkerCompletedEventArgs e) You need to write a code segment that reports to the application when the background process detects any of the following actions: * An exception is thrown. * The process is cancelled. * The process is successfully completed. Which code segment should you insert at line 03? A. if (e.cancelled == null) MessageBox.Show("Report Cancelled"); else MessageBox.Show("Report Completed"); B. if (e.result == "Cancelled" e.result == "Error") MessageBox.Show("Report Cancelled"); else MessageBox.Show("Report Completed"); C. if (backgroundworker1.cancellationpending) MessageBox.Show("Report Cancelled"); Else MessageBox.Show("Report Completed"); D. if (e.error!= null) MessageBox.Show(e.Error.Message); else if (e.cancelled) MessageBox.Show("Report Cancelled"); else MessageBox.Show("Report Completed");

15 Correct Answer: D /Reference: QUESTION 29 You are creating a Windows Forms application by using the.net Framework 3.5. You need to populate a list box control along with category names by using a DataReader control. Which code segment should you use? A. OleDbDataReader reader; OleDbConnection cnnnorthwind = new OleDbConnection( connectionstring); cnnnorthwind.open(); OleDbCommand cmdcategory = new OleDbCommand( "SELECT * FROM Categories", cnnnorthwind); reader = cmdcategory.executereader(); while (reader.read()) lbcategories.items.add(reader["categoryname"]); cnnnorthwind.close(); B. OleDbDataReader reader; OleDbConnection cnnnorthwind = new OleDbConnection connectionstring); cnnnorthwind.open(); OleDbCommand cmdcategory = new OleDbCommand "SELECT * FROM Orders", cnnnorthwind); reader = cmdcategory.executereader(); while (reader.nextresult()) lbcategories.items.add(reader["categoryname"]); cnnnorthwind.close(); C. OleDbDataReader reader; OleDbConnection cnnnorthwind = new OleDbConnection( connectionstring); cnnnorthwind.open(); OleDbCommand cmdcategory = new OleDbCommand( "SELECT * FROM Orders", cnnnorthwind); reader = cmdcategory.executereader(); cnnnorthwind.close(); while (reader.read()) lbcategories.items.add(reader["categoryname"]); cnnnorthwind.close(); D. OleDbDataReader reader; using (OleDbConnection cnnnorthwind = new OleDbConnection( connectionstring)) cnnnorthwind.open(); OleDbCommand cmdcategory = new OleDbCommand( "SELECT * FROM Orders", cnnnorthwind); reader = cmdcategory.executereader(); while (reader.read()) lbcategories.items.add(reader["categoryname"]); cnnnorthwind.close(); Correct Answer: A

16 /Reference: QUESTION 30 You are creating a Windows Forms application by using the.net Framework 3.5. You plan to modify a list of orders within a DataGridView control in the application. You need to ensure that a value is required in the first column of the grid control. Which code segment should you use? A. private void datagridorders_cellvalidated( object sender, DataGridViewCellEventArgs e) if (e.columnindex == 0) var cellvalue = datagridorders[e.columnindex, e.rowindex].value; if (cellvalue == null string.isnullorempty(cellvalue.tostring())) datagridorders.endedit(); B. private void datagridorders_validated( object sender, EventArgs e) if (datagridorders.currentcell.columnindex == 0) var cellvalue = datagridorders.text; if (cellvalue == null string.isnullorempty(cellvalue.tostring())) datagridorders.endedit(); C. private void datagridorders_validating( object sender, CancelEventArgs e) if (datagridorders.currentcell.columnindex == 0) var cellvalue = datagridorders.text; if (cellvalue == null string.isnullorempty(cellvalue.tostring())) e.cancel = true; D. private void datagridorders_cellvalidating( object sender, DataGridViewCellValidatingEventArgs e) if (e.columnindex == 0) if (e.formattedvalue == null string.isnullorempty(e.formattedvalue.tostring())) e.cancel = true; Correct Answer: D /Reference: QUESTION 31 You are creating a Windows Forms application by using the.net Framework 3.5. You write the following code

17 segment to update multiple databases on a SQL Server 2008 database. (Line numbers are included for reference only.) 01 string connectionstringcustomer Security= SSPI;"; 02 string connectionstringorders Source=ORDER;Integrated Security= SSPI;"; 03 SqlCommand cmdcustomer = new SqlCommand(); 04 SqlCommand cmdorders = new SqlCommand(); 05 SqlConnection cnncustomer =new SqlConnection(connectionStringCustomer); 06 SqlConnection cnnorders =new SqlConnection(connectionStringOrders); 07 You need to ensure that all database updates are included in a single distributed transaction.which code fragment should you add on Line 07? A. cnncustomer.open();cnnorders.open();...cmdorders.executenonquery();...cmdcustomer.executenonquery(); cnnorders.close(); cnncustomer.close(); B. TransactionScope scope = new TransactionScope(); cnncustomer.open(); cnnorders.open();...cmdorders.executenonquery();...cmdcustomer.executenonquery(); cnnorders.close(); cnncustomer.close(); scope.complete(); C. TransactionScope customerscope = new TransactionScope() using (SqlConnection cnncustomer = new SqlConnection (connectionstringcustomer)) customerscope.complete(); using (TransactionScope ordersscope = new TransactionScope()) using (SqlConnection cnnorders = new SqlConnection(connectionStringOrders)) ordersscope.complete(); D. try cmdorders.transaction = cnnorders.begintransaction();... cmdorders.executenonquery();... cmdcustomer.transaction = cnncustomer.begintransaction();... cmdcustomer.executenonquery(); cmdcustomer.transaction.commit(); cmdorders.transaction.commit();catch cmdcustomer.transaction.rollback(); cmdorders.transaction.rollback(); Correct Answer: B /Reference: QUESTION 32 You are creating a Windows Forms application by using the.net Framework 3.5.You write the following code segment to bind a list of categories to a drop-down list. (Line numbers are included for reference only.) 01 OleDbConnection cnnnorthwind =new OleDbConnection(connectionString);

18 02 OleDbCommand cmdcategory = new OleDbCommand("SELECT CategoryID, CategoryName FROM Categories ORDER BYCategoryName", cnnnorthwind); 03 OleDbDataAdapter dacategory = newoledbdataadapter(cmdcategory); 04 DataSet dscategory = new DataSet(); 05 dacategory.fill(dscategory); 06 You need to ensure that the drop-down list meets the following requirements: * Displays all category names. * Uses the category ID as the selected item value. Which code segment should you add at line 06? A. ddlcategory.datasource = dscategory; ddlcategory.displaymember = "CategoryName"; ddlcategory.valuemember = "CategoryID"; B. ddlcategory.datasource = dscategory.tables[0]; ddlcategory.displaymember = "CategoryName"; ddlcategory.valuemember = "CategoryID"; C. ddlcategory.databindings.add("displaymember", dscategory "CategoryName"); ddlcategory.databindings.add("valuemember", dscategory, "CategoryID"); D. ddlcategory.databindings.add("displaymember", dscategory.tables[0], "CategoryName"); ddlcategory.databindings.add("valuemember", dscategory.tables[0], "CategoryID"); Correct Answer: B /Reference: QUESTION 33 You are creating a Windows Forms application by using the.net Framework 3.5. You write a code segment to connect to a Microsoft Access database and populate a DataSet. You need to ensure that the application meets the following requirements: * It displays all database exceptions. * It logs all other exceptions by using the LogExceptionToFile. Which code segment should you use? A. try categorydataadapter.fill(dscategory); catch (SqlException ex) MessageBox.Show(ex.Message, "Exception"); LogExceptionToFile(ex.Message); B. try categorydataadapter.fill(dscategory); catch (SqlException ex) MessageBox.Show(ex.Message, "Exception"); catch (Exception ex) LogExceptionToFile(ex.Message); C. try categorydataadapter.fill(dscategory); catch (OleDbException ex) MessageBox.Show(ex.Message, "Exception"); catch (Exception ex) LogExceptionToFile(ex.Message); D. try

19 categorydataadapter.fill(dscategory); catch (OleDbException ex) MessageBox.Show(ex.Message, "Exception"); LogExceptionToFile(ex.Message); Correct Answer: C /Reference: QUESTION 34 You are creating a Windows application by using the.net Framework 3.5. The application is used to schedule appointments. The application contains a scheduling component that will perform the following tasks: * Return available appointments. * Add a new appointment to a calendar. * The initial implementation of the scheduling component must be deployed. You need to recommend a strategy to allow replacement of the scheduling component without changing compiled code. Which three actions should you recommend? (Each correct answer presents part of the solution. Choose three.) A. Use reflection to load the configured type dynamically. B. Specify the implementation type and its assembly in configuration. C. Create an interface that describes the service properties and methods. Create types that implement this interface. D. Create an attribute for the service, and apply this attribute to all types that provide an implementation. E. Create an attribute for the service. Dynamically discover and load all types by using the attribute. F. Define a generic class that implements the service properties and methods. Create types that inherit from this generic class, and provide a type parameter. Correct Answer: ABC /Reference: QUESTION 35 You are creating a Windows Forms application by using the.net Framework 3.5. You create a new form in your application. You add a PrintDocument control named pntdoc to the form. To support the print functionality, you write the following code segment in the application. (Line numbers are included for reference only.) 01 pntdoc.beginprint +=new PrintEventHandler(PrintDoc_BeginPrint); bool canprint = CheckPrintAccessControl(); 04 if (!canprint) You need to ensure that the following requirements are met: *When the user has no print access, font and file stream initializations are not executed and the print operation is cancelled. *Print operations are logged whether or not the user has print access.

20 What should you do? A. Add the following code segment at line 05. pntdoc.beginprint -= new PrintEventHandler(PrintDoc_BeginPrint); pntdoc.beginprint += new PrintEventHandler((obj, args) => args.cancel = true); Add the following code segment at line 07. pntdoc.beginprint += new PrintEventHandler((obj1, args1) => LogPrintOperation()); B. Add the following code segment at line 05. pntdoc.beginprint += new PrintEventHandler(delegate(object obj, PrintEventArgs args)); Add the following code segment at line 07. pntdoc.beginprint -= new PrintEventHandler(PrintDoc_BeginPrint); pntdoc.beginprint += new PrintEventHandler((obj1, args1) => LogPrintOperation()); C. Add the following code segment at line 05. pntdoc.beginprint -= new PrintEventHandler(PrintDoc_BeginPrint); pntdoc.beginprint -= new PrintEventHandler(delegate(object obj, PrintEventArgs args)); Add the following code segment at line 07. pntdoc.beginprint -= new PrintEventHandler((obj1, args1) => LogPrintOperation()); D. Add the following code segment at line 05. pntdoc.beginprint -= new PrintEventHandler((obj, args) => args.cancel = true); Add the following code segment at line 07. pntdoc.beginprint += new PrintEventHandler(PrintDoc_BeginPrint); pntdoc.beginprint -= new PrintEventHandler((obj1, args1) => LogPrintOperation()); Correct Answer: A /Reference: QUESTION 36 You are creating a Windows Forms application by using the.net Framework 3.5. You create a new form in the application. You add a ContextMenuStrip control named ctxmenu to the form. You have a user-defined class named CustomControl. You write the following code segment in the application. (Line numbers are included for reference only.) 01 CustomControl mycontrol = new CustomControl(); 02 You need to ensure that an instance of CustomControl is displayed on the form as a top-level item of the ctxmenu control. Which code segment should you add at line 02? A. ToolStripControlHost host = new ToolStripControlHost(myControl);ctxMenu.Items.Add(host); B. ToolStripPanel panel = new ToolStripPanel();panel.Controls.Add(myControl);ctxMenu.Controls.Add(panel);

21 C. ToolStripContentPanel panel = new ToolStripContentPanel();panel.Controls.Add (mycontrol);ctxmenu.controls.add(panel); D. ToolStripMenuItem menuitem = new ToolStripMenuItem(); ToolStripControlHost host = new ToolStripControlHost(myControl); menuitem.dropdownitems.add(host);ctxmenu.items.add(menuitem); Correct Answer: A /Reference: QUESTION 37 You are creating a Windows Forms application by using the.net Framework 3.5. The application requires a form to display a clock. You need to create a circular form to display the clock. Which code segment should you use? A. this.formborderstyle = System.Windows.Forms.FormBorderStyle.None; System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath(); path.addellipse(0, 0, this.width, this.height); Region reg = new Region();this.Region = reg; B. this.formborderstyle = System.Windows.Forms.FormBorderStyle.FixedSingle; System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath(); path.addellipse(0, 0, this.width, this.height); Region reg = new Region(path); this.region = reg; C. this.formborderstyle = System.Windows.Forms.FormBorderStyle.None; System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath(); path.addellipse(0, 0, this.width, this.height); Region reg = new Region(path); this.region = reg; D. this.formborderstyle = System.Windows.Forms.FormBorderStyle.FixedSingle; System.Drawing.Drawing2D.GraphicsPath path = new System.Drawing.Drawing2D.GraphicsPath(); path.addellipse(0, 0, this.width, this.height); Region reg = new Region(); this.region = reg; Correct Answer: C /Reference: QUESTION 38 You are creating a Windows Forms application by using the.net Framework 3.5. You plan to deploy the application in multiple countries and languages. You need to ensure that the application meets the globalization requirements. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.) A. Handle server names and URLs as ASCII data. B. Use Unicode strings throughout the application. C. Use the NumberFormatInfo class for numeric formatting. D. Handle strings as a series of individual characters instead of entire strings. E. Avoid usage of the SortKey class and the CompareInfo class for sorting purposes.

22 Correct Answer: BC /Reference: QUESTION 39 You are creating a Windows Forms application for a courier company by using the.net Framework 3.5. You create a form that allows customers to track the progress of their shipments. The form contains the following elements: * A text box named txttn that allows users to enter a tracking number *An ErrorProvider control named ErrorProvider1 that informs users of an invalid tracking number * A function named ValidTrackingNumber that validates tracking numbers You need to ensure that the txttn text box is validated.which code segment should you use? A. private void txttn_validating(object sender, CancelEventArgs e) if (!ValidTrackingNumber(txtTN.Text)) errorprovider1.seterror(txttn, "Invalid Tracking Number"); e.cancel = true; else errorprovider1.seterror(txttn, ""); B. private void txttn_validating(object sender, CancelEventArgs e) if (!ValidTrackingNumber(txtTN.Text)) errorprovider1.seterror(txttn, "Invalid Tracking Number"); else errorprovider1.seterror(txttn, ""); e.cancel = true; C. private void txttn_validated(object sender, EventArgs e) If (!ValidTrackingNumber(txtTN.Text)) errorprovider1.seterror(txttn, "Invalid Tracking Number"); else errorprovider1.seterror(txttn, ""); txttn.focus(); D. private void txttn_validated(object sender, EventArgs e) if (!ValidTrackingNumber(txtTN.Text)) errorprovider1.seterror(txttn, "Invalid Tracking Number"); txttn.focus(); else errorprovider1.seterror(txttn, ""); Correct Answer: A

23 /Reference: QUESTION 40 ou are creating a multiple-document interface (MDI) application by using the.net Framework 3.5. You configure the frmparent form to be an MDI parent. You write the following code segment. (Line numbers are included for reference only.) 01 Form frmchild = new Form(); 02 Form frmparent = this; 03 You need to associate and display the frmchild form and the frmparent form.which code segment should you add at line 03? A. frmchild.mdiparent = frmparent;frmchild.showdialog(); B. frmchild.mdiparent = frmparent;frmchild.show(); C. frmchild.ismdicontainer = true;frmchild.showdialog(); D. frmchild.ismdicontainer = true; frmchild.show(); Correct Answer: B /Reference: QUESTION 41 You are creating a Windows application by using the.net Framework 3.5. The application retrieves individual product details from a database within the network. The product details frequently change. The product details available to the application can be up to one hour old. The details of a single product can be retrieved multiple times during a single execution of the application. You need to design a caching strategy that uses the minimum amount of network bandwidth. What should you do? A. Cache all product details in the memory.retrieve the product details from the cache.refresh the cache every hour. B. Cache all product details in the memory.retrieve the product details from the cache.remove the product details from the cache every hour. C. Retrieve the product details from the cache if they are available in the cache.retrieve the product details from the database if they are unavailable in the cache. Then, add the product details to the cache.refresh the cache every hour. D. Retrieve the product details from the cache if they are available in the cache.retrieve the product details from the database if they are unavailable in the cache. Then, add the product details to the cache by setting an individual time-out for each product details set.remove the product details from the cache on time-out. Correct Answer: D /Reference: QUESTION 42 You are creating a Windows application by using the.net Framework 3.5. The application creates lookup

24 fields by using data from a database within the corporate network. You use the DataAdapter object to retrieve data as a DataSet from the database. You need to reduce the network bandwidth that is used by the application. What should you do? A. Use a DataReader object instead of the DataAdapter object to retrieve data. B. Use a LINQ to SQL query to retrieve data. Defer loading the data until required. C. Create a local database cache in the application by using a Microsoft SQL Server 2008 Compact 3.5 database. D. Create a Windows Communication Foundation (WCF) service to return the data. Use the service from the application. Correct Answer: C /Reference: QUESTION 43 You are creating a Windows application by using the.net Framework 3.5. The application will retrieve and save data that is located on the network. The application will be deployed to client computers that retrieve and save data from a shared location. You need to ensure reliable storage of data. Which data storage mechanism should you use? A. XML file in a network file share B. Microsoft Office Access 2007 database on a network file share C. Microsoft SQL Server 2008 Express Edition database within the network D. Microsoft SQL Server 2008 Compact Edition database on a network file share Correct Answer: C /Reference: QUESTION 44 You create a Windows application by using the.net Framework 3.5. The application uses a Microsoft SQL Server 2008 database. You discover that the application is non-responsive and performs slowly at certain times during the day. Twenty-five additional users are added to the application to meet a deadline. You need to ensure that all users experience a consistent level of high application performance throughout the day. You want to achieve this goal by using minimum development effort. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.) A. Use the CommandBehavior.CloseConnection option and the DataReader objects. B. Perform a stress test on all the components. Change all the components to inherit from the System.EnterpriseServices.ServicedComponent class. C. Create a Test Harness application to test the serialization of DataSet objects. Serialize multiple versions of the DataSet objects whenever possible. D. Use the SQL Server Profiler tool to identify functions that call stored procedures in the database. Divide these functions into multiple queries. E. Create a Test Harness application to test the performance of remoting proxies. Change the remoting proxies to use the TcpChannel class instead of the HttpChannel class. Correct Answer: AE

25 /Reference: QUESTION 45 You are creating a Windows application by using the.net Framework 3.5. The application stores data in a Microsoft SQL Server 2008 database. You discover the following performance issues: * The application takes a long time to respond. * The application consumes over 900 MB of RAM. You need to ascertain the reason for the poor performance of the application.what should you do? A. Use the.net CLR Profiler tool to identify the objects that cause performance issues. B. Capture information about execution of the application by using the Trace.Write method to identify the objects that cause performance issues. C. Use the Performance Monitor tool and add the appropriate performance counters to the.net CLR Memory performance object. D. Add the debugger display attribute to the functions that access the SQL Server 2008 database. Set a breakpoint in the application to step through the code. Correct Answer: A /Reference: QUESTION 46 You are creating a Windows application by using the.net Framework 3.5. An existing application uses functionality provided by an unmanaged dynamic-link library (DLL) to validate user inputs. The application contains a wrapper class that uses Platform Invoke to access the required DLL functions. The application has the following deployment and security requirements: * ClickOnce deployment is used to publish the application to an Internet Web site. * The application is available online only. * The application does not require protected storage. * Users can access the application without requiring the elevated permission. You need to ensure that the deployment and security requirements are met without affecting the application validation performance. What should you do? A. Sign the ClickOnce manifest by using a valid Authenticode certificate. B. Eliminate the wrapper class and migrate the code in the DLL to managed code. C. Apply the SuppressUnmanagedCodeSecurityAttribute attribute to the wrapper class. D. Apply the AllowPartiallyTrustedCallersAttribute attribute to the assembly that contains the wrapper class. Correct Answer: B /Reference: