单项选择题 You are the network administrator for your company. All servers run Windows Server 2003.  You configure a server named Server2 as a Network Address Translation （NAT） server. Server2 has a single network adapter and a modem. Server2 connects to the Internet through a demand-dial connection. Users report that when they attempt to connect to Internet Web sites， they intermittently receive the following error message： "Page not found." After waiting for several minutes， they can connect to the Web sites. These errors occur throughout the day.  You need to configure Server2 to allow users to always connect to Internet Web sites.   What should you do？（）

多项选择题 You are the administrator of an Active Directory domain. All servers run Windows Server 2003.  You configure a server named Server3 as the DNS server for the domain.The company recently started using a new ISP. Since the change to the new ISP occurred， users report that they cannot access Internet Web sites by using their fully qualified domain names （FQDNs）.You manually configure a test computer to use the DNS server address of the new ISP. The test computer can successfully access Internet Web sites by using their FQDNs.You need to ensure that network users can access Internet Web sites by using their FQDNs， while ensuring that user access to internal resources is not disrupted.   What are two possible ways to achieve this goal？（）

单项选择题 You are the network administrator for your company. All servers run Windows Server 2003.  Twenty company employees connect to a terminal server named Server2 to run applications and to gain access to the Internet.The 20 employees report that they receive security messages while browsing Internet Web sites.  The employees report that they cannot modify the Internet Explorer security settings on their client computers while connected to Server2.You need to allow these 20 employees to modify the Internet Explorer security settings on their client computers while connected to Server2. What should you do？（）