Your company has a DNS serverthat has 10 Active Directory integrated zones.
You need to provide copies of the zone files of the DNSserver to the security department.
What should you do?

A.
Run the dnscmd /ZoneInfo command.

B.
Run the ipconfig /registerdns command.

C.
Run the dnscmd /ZoneExport command.

D.
Run the ntdsutil > Partition Management > List commands.

Explanation:
http://servergeeks.wordpress.com/2012/12/31/dns-zone-export/
DNS Zone Export
In Non-AD Integrated DNS Zones
DNS zone file information is stored by default in the %systemroot%\windows\system32\dnsfolder. When the
DNS Server service starts it loads zones from thesefiles. This behavior is limited to any primary andsecondary
zones that are not AD integrated. The files will benamed as <ZoneFQDN>.dns.

In AD Integrated DNS Zones
AD-integrated zones are stored in the directory they do not have corresponding zone files i.e. they are not
stored as .dns files. This makes sense because the zones are stored in, and loaded from, the directory.
Now it is important task for us to take a backup ofthese AD integrated zones before making any changes to
DNS infrastructure. Dnscmd.execan be used to export the zone to a file. The syntax of the command is:
DnsCmd <ServerName> /ZoneExport <ZoneName> <ZoneExportFile>
<ZoneName> — FQDN of zone to export
/Cache to export cache
As an example, let’s say we have an AD integrated zone named habib.local, our DC is server1. The command
to export the file would be:
Dnscmd server1 /ZoneExport habib.local habib.local.bak


You can refer to a complete article on DNSCMD in Microsoft TechNet website
http://technet.microsoft.com/en-us/library/cc772069(v=ws.10).aspx