YourcompanyhastwoserversthatrunWindowsServer2008namedServer2andServer3.BothservershavetheDNSServerserverroleinstalled.Server3isconfiguredtoforwardallDNSrequeststoServer2.YouupdateaDNSrecordonServer2.YouneedtoensurethatServer3isabletoimmediatelyresolvetheupdatedDNSrecord.Whatshouldyoudo?()
A. Runthednscmd./clearcachecommandonServer3.
B. Runtheipconfig/flushdnscommandonServer3.
C. DecreasetheTime-to-Live(TTL)ontheStartofAuthority(SOA)recordofna.contoso.comto15minutes.
D. IncreasetheRetryIntervalvalueontheStartofAuthority(SOA)recordofna.contoso.comto15minutes.