单项选择题 Your company has a server that runs Windows Server 2008 R2.You have a new application that locates remote resources by name. The new application requires IPv6.You need to ensure that the application can locate remote resources by using IPv6.What should you do？（）

单项选择题 Your company has a single Active Directory domain. All servers run Windows Server 2008 R2.You install an additional DNS server that runs Windows Server 2008 R2.You need to delete the pointer record for the IP address 10.3.2.127.What should you do？（）

单项选择题 Your company has a main office and two branch offices. Domain controllers in the main office host an Active Directory-integrated zone. The DNS servers in the branch offices host a secondary zone for the domain and use the main office DNS servers as the DNS Master servers for the zone.Each branch office has an application server. Users access the application server by using its fully qualified domain name.You need to ensure that users in the branch offices can access their local application server even if the WAN links are down for three days.What should you do？（）