MCTS單項(xiàng)選擇題每日一練(2019.02.05)

You work as the IT professional in an international company which is named Wiikigo. You are experiencedin implementing and administering a network operating system. You are specialized in deploying servers，configuring Windows Server 2008 Terminal services and network application services， and configuring aweb services infrastructure. A Windows Server 2008 server is included by your network and the WebServer （IIS） server role is installed on Windows Server 2008. There is a Web application which a customapplication pool is utilized. The company set the application pool to recycle every 1，440 minutes. Multipleworker processes are not supported by the Web application. Since you are the technical support， you arerequired to have the application pool configured so as to make sure that the Web application is available tousers after the application pool is recycled.
Which action should be performed to achieve the goal？（）

You create a Web Form. The Web Form allows users to calculate values and display the results in a label named lblResults. You need to capture all unhandled exceptions on the Web Form through the Error event. The Error event must capture each unhandled exception and display it on the Web Form.
Which code segment should you use?（）

You are creating a DataTable. You use the following code segment to create the DataTable. (Line numbers are included for reference only.)
01 Dim dt As New DataTable("Products")
02 dt.Columns.Add(New DataColumn("Price", _ GetType(Decimal)))
03 dt.Columns.Add(New DataColumn("Quantity", _ GetType(Int32)))
04 Dim dc As DataColumn = New DataColumn("Total", _ GetType(Decimal))
05 dt.Columns.Add(dc)
You need to ensure that the Total column is set to the value of the Price column multiplied by the Quantity column when new rows are added or changed. What should you do? （）