You expect a large number of remote client applications to frequently connect to BankOps. You expect these remote client applications to use many of the BankCustomer properties. You want to ensure that network traffic is minimized.

You expect a large number of remote client applications to frequently connect to BankOps. You expect these remote client applications to use many of the BankCustomer properties. You want to ensure that network traffic is minimized.

You must ensure that remote client applications are securely authenticated prior to gaining access to Payroll object. You want to accomplish this task by writing the minimum amount of code.

You anticipate that there will be future updates to Component that you will provide to your customers. All updates to Component will be backward compatible. You will create similar setup projects for each update of Component that will register the updated assembly in the global assembly cache.

You need to ensure that any applications on your customers¡¯ computer that reference Component use the most recent version of the component.

You anticipate that there will be future updates to Component that you will provide to your customers. All updates to Component will be backward compatible. You will create similar setup projects for each update of Component that will register the updated assembly in the global assembly cache.

You need to ensure that any applications on your customers¡¯ computer that reference Component use the most recent version of the component.

You anticipate that there will be future updates to Component that you will provide to your customers. All updates to Component will be backward compatible. You will create similar setup projects for each update of Component that will register the updated assembly in the global assembly cache.

You need to ensure that any applications on your customers¡¯ computer that reference Component use the most recent version of the component.

You must ensure that the AddUser method reliably saves the new user to either all data sources or no data sources.

UserService consists of a Web method named RetrieveUserInfo. This Web method takes a userID as input and returns a DataSet object containing user information. If the userID is not between the values 1 and 1000, a System ArgumentException is thrown.

In WebApp, you write a try/ catch block to capture any exceptions that are thrown by UserService. You invoke RetrieveUserInfo and pass 1001 as the user ID.

You need to design GetAccountBalance to receive encrypted user credentials by using two customs fields named Username and password in the SOAP header. To accomplish this goal, you must write the code for GetAccountBalance.

You need to design GetAccountBalance to receive encrypted user credentials by using two customs fields named Username and password in the SOAP header. To accomplish this goal, you must write the code for GetAccountBalance.

You need to ensure that these messages cannot be intercepted and viewed by anyone other than LegalService and the customers who access LegalService.

RetrieveRegionsListBox calls a Microsoft SQL Server database named Regions to load the DataSet object with region data. You want to minimize the amount of time the method takes to return to the caller.

You want only callers from , Inc., to be able to access myWebService. You do not want to have to accept a user name and password from callers. Once callers are authenticated, you want to use Windows user accounts to authorize access to the Web methods exposed by the Web service. You set up two Windows user accounts named Associate and Manager. You need to configure myWebService to meet these security requirements.

You write the following code to create permissions in GetSalesInfo: Dim myPermission1 As New_ PrincipalPermission( Nothing, ¡° Manager¡±) Dim myPermission2 As New_ PrincipalPermission( Nothing, ¡° Director¡±)

You need to write the remaining code in GetSalesInfo to ensure that only users in the Manager group and the Director group can access SalesInformation.

To obtain a valid key, the callers must first call GetKey.

You write the following code segment. ( Line numbers are include for reference only)

01 < WebMethod ( ) > _ 02 Public Function GetKey ( ByVal caller As String) As String 03 Dim Key As String 04 If Not Context. Session (¡° key¡±) Is Nothing 05 key = Context. Session (¡° key¡±) 06 Return key 07 Else 08 Dim isAuthenticated As Boolean 09 ¡® Code to validate the caller goes here. 10 If isAuthenticated Then 11 ¡® Code to generate ¡° key¡± goes here. 12 Context. Session (¡° Key¡±) = key 13 Return key 14 Else 15 Throw New Exception (¡° User not authenticated¡±) 16 End If 17 End If 18 End Function

You run the code and an exception is thrown on line 04. You want this code to run without exceptions.

You write the appropriate code to modify the SOAP message. You also write a method named Encrypt. This method takes a string an argument, encrypts the string, and returns a new string that contains the encrypted string.

Before encryption , the Body element of the SOAP message will be written in the following format.

< soap: Body> < returnToSender xlmns = http:// . com/> < aString> some date</ aString> </ returnToSender> </ soap: Body>

After encryption, the Body element must be written in the following format.

< soap: Body> < returnToSender xmlns = ¡° http:// . com/¡±> 154 37 146 194 17 92 32 139 28 42 184 202 164 18 </ returnToSender> </ soap: Body>

You write code to isolate the < returnToSender> XML node in an XmlNode object named theNode. You now need to write code to encrypt the parameter information.

You write the appropriate code to modify the SOAP message. You also write a method named Encrypt. This method takes a string an argument, encrypts the string, and returns a new string that contains the encrypted string.

Before encryption , the Body element of the SOAP message will be written in the following format.

< soap: Body> < returnToSender xlmns = http:// . com/> < aString> some date</ aString> </ returnToSender> </ soap: Body>

After encryption, the Body element must be written in the following format.

< soap: Body> < returnToSender xmlns = ¡° http:// . com/¡±> 154 37 146 194 17 92 32 139 28 42 184 202 164 18 </ returnToSender> </ soap: Body>

You write code to isolate the < returnToSender> XML node in an XmlNode object named theNode. You now need to write code to encrypt the parameter information.

You must ensure that client credentials passed to the service are secure and cannot be compromised. You are not as concerned with the length of time that Web method calls take to maintain this level of security. You need to configure authentication for this service.

You create a SOAP extension and override the extension¡¯s ProcessMessage method so that you can encrypt the message before it is sent back to the caller. You need to encrypt only the data within the RetrieveMessageResult node of the SOAP response. You create a function named EncryptMessage that encrypts the RetrieveMessageResult node. You need to ensure that this method gets called before sending the message back to the caller.

A Web method named GetQuotes takes a languageID as input. GetQuotes uses this language ID to retrieve a translated version of the daily quotation from a Microsoft SQL Server database and to return that quotation to the customer. You want to minimize the time it takes to return the translated version.

RetrieveEmployees takes a roleID as input that specifies the type of employee to retrieve, either Manager or Engineer. RetrieveEmployees returns an array type Employee that contains all employees that are in the specified role. You want to ensure that Manager and Engineer object types can be returned from RetrieveEmployees.

The service will use a standard encryption routine to encrypt the data before it is sent to the caller. The caller will decrypt the data by using instructions provided by you. You need to write code to encrypt the sensitive data that is in a local variable named Data. First, you create an instance of a Cryptography Service Provider.

The object has no schema, but it contains a declaration line that you must inspect. You decide to transform the XML code and its declaration into a string for easy inspection.

Your application uses a DataSet object named ordersDataSet to capture customer and order information before it applied to the database. The ordersDataSet object has two Data Table objects named Customers and Orders.

You want to ensure that a row cannot exist in the Orders Data Table object without a matching row existing in the customers Data Table object.

Your application uses a DataSet object named ordersDataSet to capture customer and order information before it applied to the database. The ordersDataSet object has two Data Table objects named Customers and Orders.

You want to ensure that a row cannot exist in the Orders Data Table object without a matching row existing in the customers Data Table object.

Calculate Value( x As Integer) As Integer CalculateValue is located in an unmanaged DLL named Functions. dll, and is not part of a COM interface.

You need to be able to use CalculateValue in your application.

You need to decide how your application will handle unmanaged memory.

SELECT * FROM Products For XML AUTO

You must iterate the query results and populate an HTML table with product information.

You must ensure that your application processes the results as quickly as possible.

You create a method named GeneratePurchaseRequest. You write the code to populate a DataSet object named myDataSet with the purchase request data. You define a variable named fileName that contains the name and path of the output file.

You need to create an XML file from the data in myDataSet by adding code to GeneratePurchaseRequest. You want to accomplish this task by writing the minimum amount of code.

In the application, you create two local variable named encryptedUsername and encryptedPassword that you will use to pass user credentials to GetAccountBalance. You need to write code that will execute the GetAccountBalance Web method.

In the application, you create two local variable named encryptedUsername and encryptedPassword that you will use to pass user credentials to GetAccountBalance. You need to write code that will execute the GetAccountBalance Web method.

Session["FirstName"] = txtFirstName.Text;

You add a custom dialog box to the project that prompts the user for the administrator user name and password that are used to connect to the SQL Server database. You need to make the user name and password available to a custom Installer class that will execute the script.

InstallUtil Assembly1.dll Assembly2.dll Assembly3.dll

A call to the function includes the following pseudocode: input = ¡° A string with 6 words and 2 numbers¡± words = Nothing Numbers = Nothing Parse( input, words, numbers)

After execution, words contains all string words found in input and numbers contains all integers found in input. You need to enable your application to call this function.

The class includes the following code segment: < ComVisible( False)> Public Class Class Public Sub New() ¡® Implementation code goes here. End Sub < ComVisible( True)>_ Public Function Method( param As String) As Integer Return 0 End Function < ComVisible( True)>_ Protected Function OtherMethod() As Boolean Return True End Function < ComVisible( True)>_ Public ReadOnly Property Property() As Integer Get Return 0 End get End Property ¡® More implementation code goes here. End Class

When this code runs, it will expose one or more methods to the client applications through COM.

The class includes the following code segment: < ComVisible( False)> Public Class Class Public Sub New() ¡® Implementation code goes here. End Sub < ComVisible( True)>_ Public Function Method( param As String) As Integer Return 0 End Function < ComVisible( True)>_ Protected Function OtherMethod() As Boolean Return True End Function < ComVisible( True)>_ Public ReadOnly Property Property() As Integer Get Return 0 End get End Property ¡® More implementation code goes here. End Class

When this code runs, it will expose one or more methods to the client applications through COM.

The class includes the following code segment: < ComVisible( False)> Public Class Class Public Sub New() ¡® Implementation code goes here. End Sub < ComVisible( True)>_ Public Function Method( param As String) As Integer Return 0 End Function < ComVisible( True)>_ Protected Function OtherMethod() As Boolean Return True End Function < ComVisible( True)>_ Public ReadOnly Property Property() As Integer Get Return 0 End get End Property ¡® More implementation code goes here. End Class

When this code runs, it will expose one or more methods to the client applications through COM.

Module Tester Sub Main() Dim service As New AdminService() End Sub End Module You write a configuration file for Tester. exe. The configuration file is named Tester. exe. config and includes the following code segment: < configuration> < system. runtime. remoting> < application> < client> < wellknown url=¡± http:// Srv/ AdminService/ AS. rem¡± type=¡± AdminService, AdminService¡± /> </ client> </ application> </ system. runtime. remoting> </ configuration>

You run Tester. exe. The application immediately throws a System. NullReferenceException. The exception includes the following message: ¡° Object reference not set to an instance of an object.¡± You need to resolve this exception.

Module Tester Sub Main() Dim service As New AdminService() End Sub End Module You write a configuration file for Tester. exe. The configuration file is named Tester. exe. config and includes the following code segment: < configuration> < system. runtime. remoting> < application> < client> < wellknown url=¡± http:// Srv/ AdminService/ AS. rem¡± type=¡± AdminService, AdminService¡± /> </ client> </ application> </ system. runtime. remoting> </ configuration>

You run Tester. exe. The application immediately throws a System. NullReferenceException. The exception includes the following message: ¡° Object reference not set to an instance of an object.¡± You need to resolve this exception.

You need to resolve this problem.

You need to resolve this problem.

You need to resolve this problem.

You need to resolve this problem.

You want members of the BankTellers group to be assigned to the Tellers role.

< GuidAttribute(¡° 0B6ABB29- 43D6- 40a6- B5F2- 83A457D062AC¡±), _ InterfaceType( ComInterfaceType. InterfaceIsDual)> _ Public Interface IOrderInit ¡® IOrderInit methods go here End Interface Public Class OrderProcessor Inherits ServicedComponent Implements IOrderInit ¡® OrderProcessor methods go here. End Class

You discover that every time you rebuild OrderProcessor, existing unmanaged client code fails. The HRESULT for the exception is 0x80040154. The exception includes the following message: ¡° Class not registered.¡± You need to resolve this problem.

< GuidAttribute(¡° 0B6ABB29- 43D6- 40a6- B5F2- 83A457D062AC¡±), _ InterfaceType( ComInterfaceType. InterfaceIsDual)> _ Public Interface IOrderInit ¡® IOrderInit methods go here End Interface Public Class OrderProcessor Inherits ServicedComponent Implements IOrderInit ¡® OrderProcessor methods go here. End Class

You discover that every time you rebuild OrderProcessor, existing unmanaged client code fails. The HRESULT for the exception is 0x80040154. The exception includes the following message: ¡° Class not registered.¡± You need to resolve this problem.

The StockQuote class includes the following code segment: Public Class StockQuote Inherits ServicedComponent Implements IStockQuote Public Function GetQuote( stock as Ticker) as Price_ Implements IStockQuote. GetQuote ¡® Implementation code goes here. End Function End Class

You want to secure StockQuote so that it can only be accessed by users in the Customers and Managers roles.

The StockQuote class includes the following code segment: Public Class StockQuote Inherits ServicedComponent Implements IStockQuote Public Function GetQuote( stock as Ticker) as Price_ Implements IStockQuote. GetQuote ¡® Implementation code goes here. End Function End Class

You want to secure StockQuote so that it can only be accessed by users in the Customers and Managers roles.

The StockQuote class includes the following code segment: Public Class StockQuote Inherits ServicedComponent Implements IStockQuote Public Function GetQuote( stock as Ticker) as Price_ Implements IStockQuote. GetQuote ¡® Implementation code goes here. End Function End Class

You want to secure StockQuote so that it can only be accessed by users in the Customers and Managers roles.

You are preparing to hand off Tracker to and administrator for deployment to production computers. You want all the COM+ configuration information for Tracker to be installed on the production computers.

You are preparing to hand off Tracker to and administrator for deployment to production computers. You want all the COM+ configuration information for Tracker to be installed on the production computers.

You are preparing to hand off Tracker to and administrator for deployment to production computers. You want all the COM+ configuration information for Tracker to be installed on the production computers.

You deploy 1. You discover that some client applications are rejecting your XML formatting because the XML is inconsistent with the expected standard. You want to debug this problem by tracing the XML responses.

You want to deploy Code to a production computer. You do not want any of the debugging code to execute on the production computer.

. Anonymous access must be disabled for Service. . An authenticated user named User1 cannot access Service. . All other authenticared users can access Service.

You configure Internet Information Services ( IIS) to meet these requirements. You now need to configure the authorization section in the Web. config file to properly authorize the users.

You discover that when TimeService creates TimeServiceLog, it throws a System. Security. SecurityException. The exception includes the following message: ¡° Requested registry access is not allowed¡±. You need to resolve this problem.

You discover that when TimeService creates TimeServiceLog, it throws a System. Security. SecurityException. The exception includes the following message: ¡° Requested registry access is not allowed¡±. You need to resolve this problem.

A new customer subscribes to SilverService. You need to create a discovery document that enables this customer to use only SilverService.

All 50 connections are now in use. However, a request for connection number 51 is received.

You create an application named MyApp that resides on a different computer than Assembly.

MyApp references version 1.0.0.0 of Assembly. MyApp contains code that activates instances of 1 and 2 to use their services. Due to change in business needs, you must update Assembly. You create version 2.0.0.0 of My Assembly. Which is backward compatible, but you do not update any information in the App. config file of Assembly. You register version 2.0.0.0 of Assembly in the global assembly cache. You then rebuild MyApp.

RetrieveData expects a valid key that has been generated by Authenticate as input before it will return data. If the key matches the key in the current session, retrieveData will return data to the customer. You write the following code segment in the Page_ load event of 1. ( Line numbers are included for reference only) 01 Dim service1 As New localhost. Service1 ( ) 02 Dim key As String 03 Dim userData As DataSet 04 ¡® Insert new code. 05 key = service1. Authenticate ( myUser, myPassword) 06 userData = service1. RetrieveData ( key) 07 DataGrid1. DataSource = userData

You run the application. When line 06 executes, the Web service returns an exception, which indicates that the key is invalid. To ensure that the application runs without exceptions, you must insert additional code on line 04.

RetrieveData expects a valid key that has been generated by Authenticate as input before it will return data. If the key matches the key in the current session, retrieveData will return data to the customer. You write the following code segment in the Page_ load event of 1. ( Line numbers are included for reference only) 01 Dim service1 As New localhost. Service1 ( ) 02 Dim key As String 03 Dim userData As DataSet 04 ¡® Insert new code. 05 key = service1. Authenticate ( myUser, myPassword) 06 userData = service1. RetrieveData ( key) 07 DataGrid1. DataSource = userData

You run the application. When line 06 executes, the Web service returns an exception, which indicates that the key is invalid. To ensure that the application runs without exceptions, you must insert additional code on line 04.

Calls to ChargeCard take one minute to complete. You do not want users to have to wait while ChargeCard executes. You wan users to be taken automatically to the next Web page of application.

Calls to ChargeCard take one minute to complete. You do not want users to have to wait while ChargeCard executes. You wan users to be taken automatically to the next Web page of application.

The ProductLoader class loads product data into a Microsoft SQL Server database. The Load method of the ProductLoader class is a time- consuming method to call. You are developing a client application that uses the ProductLoader class. You want to ensure that the client application can continue to respond to user input while the Load method of the ProductLoader class is called.

You want to write a client application that creates and uses a Utils object. You want the client application to hold onto a reference to a Utils object for the duration of its execution.

You want to merge assetCustomersDataSet into loanCustomersDataSet and preserve the original values in loanCustomersDataSet.

Customers and Orders have a data column named CustomerID. Orders and OrderDetails have a data column named OrderID. Orders have a foreign key constraint between Customers and Orders on CustomerID. OrderDetails has a foreign key constraint between Orders and OrderDetails on OrderID.

You want to populate Customers, Orders and OrderDetails with data from Microsoft SQL Server database.

You receive version 2.0.0.0 of Component, which you install in the global assembly cache. You reconfigure the application configuration file to redirect calls to version 2.0.0.0. You now receive version 3.0.0.0 of Component, which you install in the global assembly cache. You do not reconfigure the application configuration file. You then run MyApp.

You develop a new ASP . NET application named WebApp2 that also needs to use employee. You assign Employee a strong name, set its version to 1.0.0.0, and install it in the global assembly cache. You then create a publisher policy assembly for version 1.0.0.0 and install it in the global assembly cache. You complete WebApp2 against version 1.0.0.0. You do not recompile WebApp. You then run MyWebApp.

You develop a new ASP . NET application named WebApp2 that also needs to use employee. You assign Employee a strong name, set its version to 1.0.0.0, and install it in the global assembly cache. You then create a publisher policy assembly for version 1.0.0.0 and install it in the global assembly cache. You complete WebApp2 against version 1.0.0.0. You do not recompile WebApp. You then run MyWebApp.

private void Page_Load(
    object sender, System.EventArgs e)
{
    // Move the data from the
    // database to the DataGrid
    dgOrders.DataBind();
}

private void Page_Load(
   object sender, System.EventArgs e)
{
    lbCustomers.DataSource = DataLoad();
    lbCustomers.DataTextField = 
        "CustomerName";
}

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9
10
11
12

private void LoadAccounts(Object sender,
   System.EventArgs e)

The function instantiates a SqlDataAdapter object named DataAdapter. This object is configured to select, insert, update and delete rows in the Categories DataTable object. You need to update the database to include the changes in the Categories DataTable object and capture all data errors in a batch after all rows have been processed.

SqlDataReader dr = cmd.ExecuteReader();
String s;
while(dr.Read())
{
    s = s + dr.GetString(0);
}

Your form also contains a TextBox control named txtCustomerID. This control uses simple data binding to display the SelectedItem.Value from the ListBox control.

<identity impersonate="true"
   name="CORP\Auditing"
   password="Auditing"/>

<customErrors mode="Off"
 defaultRedirect="AllError.htm">
</customErrors>

You need to create this code as quickly as possible.

You are developing an application to populate a DataReader object with data from aPurchases.

You want to ensure that the application processes the data as quickly as possible.

You create a SQL SELECT statement in a local variable named aSQLSelect. You need to initiate a SqlConnection object and a SqlCommand object you will use to populate the DataReader object.

You need to develop an application to produce a report of all orders in the table. You need to ensure that the application processes the data as quickly as possible.

You need to develop an application that reads Orders every 15 minutes and sends all new orders to the order fulfillment department. The application will run on computer that is used by several users who continuously log on and log off from the network to perform miscellaneous tasks.

You need to develop an application that reads Orders every 15 minutes and sends all new orders to the order fulfillment department. The application will run on computer that is used by several users who continuously log on and log off from the network to perform miscellaneous tasks.

You initiate a SqlCommand object named myCommand. You need to initialize myCommand to return the company name for @ CustomerID with a value of ¡° ALFKI¡±.

[DllImport("kernel32.dll",
   CharSet=CharSet.Auto)]
public static extern int GetComputerName(
    String buffer, ref uint size);

The project also contains code to use this API to display the computer name:

public static void ShowName()
{
    String buf = "";
    UInt32 intLen=128;
    Int32 intRet;

    // Call the Win API method
    intRet = GetComputerName(
         buf, ref intLen);
    Console.WriteLine(
        "This computer is named " +
        buf.ToString());
}