单项选择题
A. Create a new scope for the DNS servers.
B. Create a reservation for the DHCP server.
C. Configure the 005 Name Servers scope option.
D. Configure an exclusion that contains the IP addresses of the four DNS servers.
单项选择题 You have a Windows Server 2008 R2 computer that has an IP address of 172.16.45.9/21.The server is configured to use IPv6 addressing.You need to test IPv6 communication to a server that has an IP address of 172.16.40.18/21.What should you do from a command prompt？（）
单项选择题 YourcompanyhasasingleActiveDirectorydomain.AllserversrunWindowsServer2008.YouinstallanadditionalDNSserverthatrunsWindowsServer2008.YouneedtodeletethepointerrecordfortheIPaddress10.3.2.127.Whatshouldyoudo？（）
单项选择题 Yourcompanyhasamainofficeandtwobranchoffices.DomaincontrollersinthemainofficehostanActiveDirectory-integratedzone.TheDNSserversinthebranchofficeshostasecondaryzoneforthedomainandusethemainofficeDNSserversastheDNSMasterserversforthezone.Eachbranchofficehasanapplicationserver.Usersaccesstheapplicationserverbyusingitsfullyqualifieddomainname.YouneedtoensurethatusersinthebranchofficescanaccesstheirlocalapplicationservereveniftheWANlinksaredownforthreedays.Whatshouldyoudo？（）