单项选择题
A.Create a NS record in the contoso，com zone.
B.Create a delegation in the contoso，com zone.
C.Create a standard secondary zone on a Global Catalog server.
D.Modify the properties of the SOA record in the contoso.com zone.
单项选择题 YournetworkconsistsofasingleActiveDirectorydomain.AlldomaincontrollersrunWindowsServer2008andareconfiguredasDNSservers.AdomaincontrollernamedDC1hasastandardprimaryzoneforcontoso，com.AdomaincontrollernamedDC2hasastandardsecondaryzoneforcontoso，com.Youneedtoensurethatthereplicationofthecontoso，comzoneisencrypted.Youmustnotloseanyzonedata.Whatshouldyoudo（）
单项选择题 YournetworkcontainsanActiveDirectoryforest.AlldomaincontrollersrunWindowsServer2008andareconfiguredasDNSservers.YouhaveanActiveDirectory-integratedzoneforcontoso，com.YouhaveaUnix-basedDNSserver，YouneedtoconfigureyourWindowsServer2008environmenttoallowzonetransfersofthecontoso，comzonetotheUnix-basedDNSserver.WhatshouldyoudointheDNSManagerconsole（）
单项选择题 YounetworkconsistsofasingleActiveDirectorydomain.AlldomaincontrollersrunWindowsServer2008.YouneedtoresettheDirectoryServicesRecoveryMode（DSRM）passwordonadomaincontroller.Whattoolshouldyouuse（）