Your company has a single Active Directory domain. All servers run Windows Server 2008 R2. You install an additional DNS server that runs Windows Server 2008 R2. You need to delete the pointer record for the IP address 10.3.2.127.
What should you do?
A.
Use DNS manager to delete the 127.in-addr.arpa zone.
B.
Run the dnscmd /RecordDelete 10.3.2.127 command at the command prompt.
C.
Run the dnscmd /ZoneDelete 127.in-addr.arpa command at the command prompt.
D.
Run the dnscmd /RecordDelete 10.in-addr.arpa. 127.2.3 PTR command at the command prompt.
Explanation:
Answer : D
If you choose to delete all PTR records at the node, use Dnscmd.exe to delete them. For example, type the following command at the command prompt to delete all PTR records at the 10.3.2.1 address:
dnscmd /RecordDelete 10.in-addr.arpa. 1.2.3 PTR
Important Notice the period (.) after the “in-addr.arpa” string.
If you omit the period, you may receive the following error message:
Command failed: DNS_ERROR_ZONE_DOES_NOT_EXIST 9601 (00002581)
http://support.microsoft.com/kb/842127/en-us
D