单项选择题 You have a server that runs Windows Server 2003 Service Pack 2 （SP2）.You discover that the server has a large number of open connections that originate from the IP address 192.168.1.121. You need to identify the host name of the computer that uses the IP address 192.168.1.121. Which command should you run？（）

单项选择题 YouhaveaserverthatrunsWindowsServer2003ServicePack2（SP2）.Youneedtogetalistofalltheopenconnectionsontheserverandalltheportnumbersusedbytheconnections.Whichtoolshouldyouuse？（）

单项选择题 Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）. You have a member server named Server1 that is configured as a DHCP server. You install a new stand-alone server named Server2 in the same subnet as Server1. You install the DHCP service on Server2.You need to ensure that Server2 can assign IP configurations to clients on the subnet.  What should you do first？（）