Your company uses Active Directory-integrated DNS. Users require access to the Internet. You run a network capture. You notice the DNS server is sending DNS name resolution queries to a server named f.root-servers.net. You need to prevent the DNS server from sending queries to f.root-servers.net. The server must be able to resolve names for Internet hosts. Which two actions should you perform？（）

• A、Enable forwarding to your ISP¯s DNS servers
• B、Disable the root hints on the DNS server.
• C、Disable the netmask ordering option on the DNS server.
• D、Configure Reverse Lookup Zones for the IP subnets on the network.