You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web form by using ASP.NET AJAX. The Web form contains the following code fragment：
01 <script type="text/javascript">  
02  
03   Sys.Application.add_init（initComponents）；  
04  
05   function initComponents（） {  
06 ► 
07   }  
08  
09 </script>  
10  
11 <asp：ScriptManager ID="ScriptManager1"  
12   runat="server" />  
13 <asp：TextBox runat="server" ID="TextBox1" />  
You need to create and initialize a client behavior named MyCustomBehavior by using the initComponents function. You also need to ensure that MyCustomBehavior is attached to the TextBox1 Textbox control. 
Which code segment should you insert at line 06？ （）

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web form by using ASP.NET AJAX.  You write the following client-script code fragment to handle the exceptions thrown from asynchronous postbacks：   01 <script type= text javascript >   02   function pageLoad（）   03   {   04     var pageMgr =  05       Sys.WebForms.PageRequestManager.getInstance（）；   06   07   }   08   09   function errorHandler（sender， args）   10   {   11   12   }   13 < script> You need to ensure that the application performs the following tasks：  use a common client-script function named errorHandler.  udpdate a Label control that has an ID named lblError with the error message.  prevent the browser from displaying any message box or Javascript error.   What should you do？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You write the following code segment to create a client-script function：   01 function updateLabelControl（labelId， newText） {  02  var label = $find（labelId）；  03  label.innerHTML = newText；   04 }   The client script function uses ASP.NET AJAX and updates the text of any Label control in the Web form.  When you test the client script function， you discover that the Label controls are not updated. You receive the following JavaScript error message in the browser：  ’null’ is null or not an object.  You need to resolve the error. What should you do？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You add the following code fragment to the Web.config file of the application：   01 <healthMonitoring>   02   <providers>   03     <add name= EventLogProvider    04       type= System.Web.Management.EventLogWebEventProvider   05      >   06     <add name= WmiWebEventProvider    07       type= System.Web.Management.WmiWebEventProvider   08      >   09   < providers>   10   <eventMappings>   11   12   < eventMappings>   13   <rules>   14     <add name= Security Rule  eventName= Security Event    15       provider= WmiWebEventProvider   >   16     <add name= AppError Rule  eventName= AppError Event   17       provider= EventLogProvider   >   18   < rules>   19 < healthMonitoring>   You need to configure Web Events to meet the following requirements：  Security-related Web Events are mapped to Microsoft Windows Management Instrumentation （WMI） events.  Web Events caused by problems with configuration or application code are logged into the Windows Application Event Log.   Which code fragment should you insert at line 11？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You plan to monitor the execution of the application at daily intervals.  You need to modify the application configuration to enable WebEvent monitoring.  What should you do？（）

A.A
B.B
C.C
D.D

多项选择题You create a Microsoft ASP.NET Web application by using the Microsoft .NET Framework version 3.5.  When you review the application performance counters， you discover that there is an unexpected increase in the value of the Application Restarts counter. You need to identify the reasons for this increase.  What are three possible reasons that could cause this increase？（）

A.Restart of the Microsoft IIS 6.0 host. 
B.Restart of the Microsoft Windows Server 2003 that hosts the Web application. 
C.Addition of a new assembly in the Bin directory of the application. 
D.Addition of a code segment that requires recompilation to the ASP.NET Web application. 
E.Enabling of HTTP compression in the Microsoft IIS 6.0 manager for the application. 
F.Modification to the Web.config file in the <system.web> section for debugging the application.