单项选择题
A.Stop and restart the DNS service on server1.
B.Enable DNS scavenging on the na.contoso.com zone.
C.Run the dnscmd server1 /ageallrecords command on server1/.
D.Run the dnscmd server1 /startscavenging command on server1.
单项选择题 Your company has a network that has 100 servers. A server named Server1 is configured as a file server. Server1 is connected to a SAN and has 15 logical drives.You want to automatically run a data archiving script if the free space on any of the logical drives is below 30 percent.You need to automate the script execution.You create a new Data Collector Set. What should you do next？（）
单项选择题 YouhaveaDHCPserverthatrunsWindowsServer2008.YouneedtoreducethesizeoftheDHCPdatabase.Whatshouldyoudo？（）
单项选择题 Your company has a main office and a branch office. Users in the branch office report that they are unable to access shared resources in the main office. You discover that computers in the branch office have IP addresses in the range of 169.254.x.x you need to ensure that computers can connect to shared resources in both the main office and the branch office. What should you do?（）