单项选择题 You have a single network segment. All servers run Windows Server 2003 Service Pack 2 （SP2）. You have a DHCP server named Server1. Client computers receive IP addresses from Server1. You add a second network segment separated by a RFC 1542-compliant router. You need to ensure that computers in the new network segment can receive their IP configurations from Server1. You make the appropriate configuration changes on the router.  What should you do on Server1？（）

单项选择题 Your network consists of a single Active Directory domain.You have a DHCP server that runs Windows Server 2003 Service Pack 2 （SP2）. All client computers run Windows XP Service Pack 3 （SP3）.A user named User1 reports that when she starts her computer， she receives a duplicate address error message.You confirm that her computer is configured as a DHCP client.You need to ensure that User1 receives a unique IP address from the DHCP server.  What should you do on the DHCP server？（）

单项选择题 Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 （SP2）.The network contains two DNS servers named Server1 and Server2.  You deploy a DHCP server named Server3 and configure all client computers to receive their IP configurations automatically.You discover that all client computers use Server2 for host name resolution.You need to ensure that all client computers use Server1 for host name resolution.  What should you do？（）