Your network contains a single Active Directory domain named contoso.com.The functional level of the domain is Windows 2000 mixed.
You have a domain controller named DC1 that runs Windows Server 2003 Service Pack 2 (SP2).
DC1 hosts a standard primary zone for contoso.com.
You need to ensure that only computers in the contoso.com domain can register host records in the contoso.com zone.
What should you do?
A.
Convert contoso.com to a secondary zone.
B.
Convert contoso.com to an Active Directory-integrated zone.Set dynamic updates for the zone to Secure only.
C.
Convert contoso.com to an Active Directory-integrated zone.Set dynamic updates for the zone to Nonsecure and secure.
D.
Change the domain functional level to Windows Server 2003. Set dynamic updates for the zone to Nonsecure and secure.