单项选择题
Your company has a single Active Directory domain. The company network is protected by a firewall. Remote users connect to your network through a VPN server by using PPTP.When the users try to connect to the VPN server， they receive the following error message：Error 721：The remote computer is not responding.You need to ensure that users can establish a VPN connection. What should you do？（）
A.Open port 1423 on the firewall.
B.Open port 1723 on the firewall.
C.Open port 3389 on the firewall.
D.Open port 6000 on the firewall.
相关考题
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多项选择题
Your network uses IPv4.You install a server that runs Windows Server 2008 R2 at a branch office. The server is configured with two network interfaces. You need to configure routing on the server at the branch office.Which two actions should you perform？（）
A. Install the Routing and Remote Access Services role service.
B. Run the netsh ras ip set access ALL command.
C. Run the netsh interface ipv4 enable command.
D. Enable the IPv4 Router Routing and Remote Access option. -
单项选择题
YourcompanyhasasingleActiveDirectoryforestthathasadomaininNorthAmericanamedna.contoso.comandadomaininSouthAmericanamedsa.contoso.com.TheclientcomputersrunWindowsVista.YouneedtoconfiguretheclientcomputersintheNorthAmericaofficetoimprovethenameresolutionresponsetimeforresourcesintheSouthAmericaoffice.Whatshouldyoudo？（）
A.Configure a new Group Policy object （GPO） that disables the Local-Link Multicast Name Resolution feature. Apply the policy to all the client computers in the North America office.
B.Configure a new Group Policy object （GPO） that enables the Local-Link Multicast Name Resolution feature. Apply the policy to all the client computers in the North America office.
C.Configure a new Group Policy object （GPO） that configures the DNS Suffix Search List option to sa.contoso.com， na.contoso.com. Apply the policy to all the client computers in the North America office.
D.Configure the priority value for the Service Location （SRV） records on each of the North America domain controllers to 5. -
单项选择题
You have a DHCP server that runs Windows Server 2008 R2.You restore the DHCP database by using a recent backup.You need to prevent DHCP clients from receiving IP addresses that are currently in use on the network.What should you do？（）
A. Add the DHCP server option 15.
B. Add the DHCP server option 44.
C. Set the Conflict Detection value to 0.
D. Set the Conflict Detection value to 2.
