MCPD單項(xiàng)選擇題每日一練(2019.01.25)

You are developing a Windows Presentation Foundation (WPF) application
The application is for commercial use and requires a valid license key to be entered. You create a project type of Class Library code to validate license keys
You need to ensure that the user enters a valid license key during installation of the software.
Which deployment should reference the class library?（）

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. 
When you access the application in a Web browser， you receive the following error message： "Service Unavailable". 
You need to access the application successfully. 
What should you do？（）

Certkiller.com has hired you as a system administrator for their network. You make use of .NETFramework v3.5 in order to create a Microsoft ASP.NET application. 
You decide to create a Web form. You add the subsequent code fragment to the Web form.<asp：Repeater ID="rept1" runat="server" DataSourceID="ds1" ItemDataBound="rept1_b"><ItemTemplate>
<asp：Label ID="lblQty" runat="server" Text=’<%# Eval（"Qty"） %>’ />
</ItemTemplate>
</asp：Repeater> 
The DataSource control named CKDataSource recovers the Quantity column values from a tablenamed Orders. You the create the rptData_ItemDataBound event handler using the subsequentcode fragment. （The line numbers is included for reference purposes） 
1 protected void rept_b（object sender， RepeaterItemEventArgs e）
2 {
3
4 if（CKLbl != null）
5 if（int.Parse（CKLbl.Text） < 10）6 CKLbl.ForeColor = Color.Red；7 } 
You receive an instruction from management to recover a reference to the lblQuantity Labelcontrol into a variable. The variable is named CKLbl. 
What should you do？（）

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 JavaScript file named CalculatorScript.js：  
function divide（a， b） {  if （b == 0） {  
var errorMsg = Messages.DivideByZero；  alert（errorMsg）； return null；  
} 
return a/b；  
}  
You embed the CalculatorScript.js file as a resource in a Class Library project.  The namespace for this project is Calculator.Resources.  
The JavaScript function retrieves messages from a resource file named MessageResources.resx by using the JavaScript Messages object. 
You add an AJAX Web form in the ASP.NET application. You reference the Class Library in the application. 
You add an ASP.NET AJAX ScriptReference element to the AJAX Web form. 
You need to ensure that the JavaScript function can access the error messages that are defined in the resource file. 
Which code segment should you add in the AssemblyInfo.cs file？（）

您需要以二進(jìn)制格式序列化List類(lèi)型的對(duì)象。該對(duì)象名為data。您應(yīng)該使用哪個(gè)代碼段？（）