What might be wrong in the zone definition?

168.192.in-addr.arpa. 600 IN NS linuserv.example.net.

;; ADDITIONAL SECTION:

linuserv.example.net. 600 IN A 192.168.123.5

What might be wrong in the zone definition?
A . Nothing. All seems to be good.
B . There’s no "." after linuserv.example.net in the PTR record in the forward lookup zone file.
C . There’s no "." after linuserv in the PTR record in the forward lookup zone file.
D . There’s no "." after linuserv.example.net in the PTR record in the reverse lookup zone file.
E . The "." in the NS definition in reverse lookup zone has to be removed.

View Answer

Answer: D