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单项选择题

YouhaveasingleActiveDirectorydomain.AlIdomaincontrollersrunWindowsServer2008andareconfiguredasDNSservers.ThedomaincontainsoneActiveDirectory-integratedDNSzone.YouneedtoensurethatoutdatedDNSrecordsareautomaticallyremovedfromtheDNSzone.Whatshouldyoudo()
A.Fromthepropertiesofthezone,enablescavenging.
B.Fromthepropertiesofthezone,disabledynamicupdates.
C.Fromthepropertiesofthezone,modifytheTTLoftheSOArecord.
D.Fromthecommandprompt,runipconfig/flushdns.

    A.AlIdomaincontrollersrunWindowsServer2008andareconfiguredasDNSservers.ThedomaincontainsoneActiveDirectory-integratedDNSzone.YouneedtoensurethatoutdatedDNSrecordsareautomaticallyremovedfromtheDNSzone.Whatshouldyoudo()
    A.Fromthepropertiesofthezone,enablescavenging.
    B.Fromthepropertiesofthezone,disabledynamicupdates.
    C.Fromthepropertiesofthezone,modifytheTTLoftheSOArecord.
    D.Fromthecommandprompt,runipconfig/flushdns.
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