单项选择题
A.Use DNS manager to delete the 127.in-addr.arpa zone.
B.Run the dnscmd /recordelte 10.3.2.127 command at the command prompty.
C.Run the dnscmd /zonedelete 127.in-addr.apa command at the command prompt.
D.Run the dnscmd /recorddelete 10.in-addr.arpa 172.2.3 PRT command at the command prompt.
单项选择题 You have a DHCP server that runs windows server 2008. You need to reduce the size of the DHCP database. What should you do?（）
单项选择题 Your network contains a DNS server that runs Windows Server 2008 R2.You open the Forwarders settings of the DNS server and discover that the option to add forwarders is disabled.You need to add forwarders to the DNS server.What should you do first？（）
单项选择题 Your network contains an Active Directory domain. The domain contains two servers named Server1 and Server2. All servers run Windows Server 2008 R2 and have Windows Firewall turned on. You need to ensure that you can use Event Viewer on Server2 to access the Application log on Server1. What should you do？（）