单项选择题 Your network contains two Web servers named Web1 and Web2. Web1 hosts the companys corporate Web site. Web2 is a test server that contains a copy of the Web site.Users connect to Web1 by using the URL http://www.contoso.com.A Web developer named User1 plans to test updates to the Web site on Web2.You need to ensure that User1 connects to Web2 by using the URL http://www.contoso.com. The solution must ensure that all other computers connect to Web1.What should you do？（）

单项选择题 our company has a main office and 15 branch offices. The company has a single active directory domain. All servers run windows server 2008.You need to ensure that the VPN connections between the office and the branch offices meet the following requirements:All data must be encrypted by using end-to-end encryption.The vpn connection must use computer-level authentication.User names and passwords cannot be used for authentication.What should do?（）

单项选择题 Your company has a main office and a branch office. The main office has a domain controller named DC1 that hosts a DNS primary zone. The branc office has a DNS server named SRV1 that hosts a DNS secondary zone. All client computers are configured to use their local server for DNS resolution. You change the IP address of an existing server named SRV2 in the main office. You need to ensure that SRV1 reflects the change immediately. What should you do?（）