多项选择题
A.On Server1， restart the Netlogon service.
B.On Server2， run the Ipconfig /flushdns command.
C.On Server1， run the Ipconfig /Registerdns command.
D.On the DNS server， run the Dnscmd /zonerefresh contoso.com command.
单项选择题 YournetworkconsistsofasingleActiveDirectorydomain.AllserversrunWindowsServer2003ServicePack2(SP2).YouhavetwoserversnamedServer1andServer2.BothservershaveWindowsServerUpdateServices(WSUS)3.0installed.YouneedtoconfigureWSUSsothatServer2usesServer1astheupstreamserver.WhatshouldyoudoonServer2?（）
单项选择题 Your network contains a Web server named Server1 that runs Windows Server 2003 and Internet Information Server (IIS). Server1 has a server certificate from an Enterprise Certificate Authority (CA) installed. External users report that when they try to access the Web site from outside the corporate network by using a Web browser, they receive the following warning message: There is a problem with this Web sites security certificate. The security certificate presented by this Web site was not issued by a trusted certificate authority. You find that users onthe corporate network do not receive this error. You need to ensure that external users do not receive the warning message when connecting to Server1. What should you do?（）
单项选择题 You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2). Windows Firewall allows the following ports on Server1: 53110135 You plan to install a monitoring server on the network. You need to ensure that the monitoring server can use Server1 to relay e-mail messages. You install the SMTP service on Server1. What should you do next?（）