Your network consists of a single Active Directory domain and a single subnet. The network is not connected to the Internet. All servers run Windows Server 2003 Service Pack 2 (SP2). All client computers run Windows XP Professional Service Pack 3 (SP3). You have a DHCP server named Server1. All client computers receive their IP configurations from Server1. You implement a new server named Server2. You connect Server2 to the internal network and the Internet. You then configure Server2 as a network address translation (NAT) router. From a client computer, you discover that you cannot access any Internet servers. From Server2, you verify that you can access Internet servers and internal servers. You need to ensure that all internal computers can access Internet servers. What should you do?（） On Server2, add a new route. 。 On Server1, create a multicast scope. 。 On Server1, add the Router scope option. 。 On Server2, modify the default gateway address.。
置换密码又叫（） 代替密码。 替换密码。 换位密码。 序列密码。
You are designing DNS implemetation Strategy for the new Infrastruce. Which two actions should you perform?（） Create a Stub Zone in each domain of the root zone. 。 Create a _msdcs subdomain in a new zone on the root domain. 。 Replicate the _msdcs subdomain across the roor domain. 。 Replicate the _msdcs subdomain to the ForestDNS zone applciation partition. 。 Configure a zone transfer of the _msdcs subdomain to secondary zone on all DNS servers in the forest.。
微机系统的维护主要包括（）和（），其目的是减少微机的故障，提高微机的运行效率，在一定程度上延长微机的运行寿命。 主机维护。 外设维护。 硬件维护。 软件维护。
杂草与作物间的竞争主要表现在哪些方面？
Which two statements are true about using the isUserInRole method to implement security in a Java EEapplication？（）
