单项选择题 You are the administrator of an Active Directory domain. All servers run Windows Server 2003. All client computers run Windows XP Professional. All computers are members of the domain.   The Secure Server （Require Security） IPSec policy is assigned to a file server named Server6. The policy is configured as shown in the exhibit. （Click the Exhibit button.）   Users report that they cannot access shared folders on Server6. Users were able to access shared folders on Server6 prior to the implementation of the IPSec policy.   You need to ensure that all client computers in the domain can access the shared folders on Server6. You must ensure that all communications between client computers and Server6 be encrypted. What should you do？（）

单项选择题 You are the network administrator for your company. All servers run Windows Server 2003. All servers are configured with static IP addresses. All client computers run Windows XP Professional. All client computers are configured as DHCP clients.The company has a main office and one branch office. The offices are separated by a router. A DHCP server is deployed in each office. The DHCP servers are named DHCP1 and DHCP2.  You configure scopes on the DHCP1 and DHCP2 as shown in the following table. You shut down DHCP1 for scheduled maintenance. While DHCP1 is shut down， client computers in both offices continue to receive correct IP address assignments from DHCP2.   You restart DHCP1. Several users report that when they restart their computers， they receive error messages stating that a duplicate IP address exists on the network.   You need to ensure that these error messages do not appear when you shut down and restart a DHCP server. You need to ensure that changes you make does not affect the current DHCP functionality. What should you do？（）

多项选择题 You are the network administrator for your company. The network consists of a single Active Directory domain. All servers run Windows Server 2003.The network contains a Web server named Server1 that runs IIS 6.0 and hosts a secure Web site. The Web site is accessible from the intranet， as well as from the Internet. All users must authenticate when they connect to Server1. All users on the Internet must use a secure protocol to connect to the Web site. Users on the intranet do not need to use a secure protocol.You need verify that all users are using a secure protocol to connect to Server1 from the Internet.   What are two possible ways to achieve this goal？（）