单项选择题 Yourcompanyhastwooffices.ThenetworkconsistsofasingleActiveDirectorydomain.YouhavetwodomaincontrollersnamedDC2andDC3.AllserversrunWindowsServer2003ServicePack2（SP2）.YouverifytheIPconfigurationofServer1asshowninthefollowingCommandPromptwindow.YouneedtoensurethatServer1canlocateadomaincontrollerifasingleserverfails. WhichIPconfigurationshouldyouchangeonServer1？（）

单项选择题 Yourcompanyhastwooffices.AllserversrunWindowsServer2003ServicePack2（SP2）.YouneedtoensurethatServer1cancommunicatewithWebserversontheInternet. WhichdefaultgatewayshouldyouassigntoServer1？（）

单项选择题 You have an DNS server that runs Windows Server 2003 Service Pack 2 （SP2）.You need to ensure that an e-mail message is sent to the administrator if the DNS server service stops. You create a script that sends e-mail when the script is executed. What should you do next？（）