Reverse DNS assigns hostnames to IP addresses. How is the name of the IP address 198.51.100.165 stored on a DNS server?
A) In the A record for 165.100.51.198.ipv4.arpa. In the A record for 165.100.51.198.ipv4.arpa.
B) In the PTR record for 165.100.51.198.in-addr.arpa . In the PTR record for 165.100.51.198.in-addr.arpa .
C) In the RNAME record for 198-51-100-165.rev.arpa. In the RNAME record for 198-51-100-165.rev.arpa.
D) In the ARPA record for 165.100.51.198.rev. In the ARPA record for 165.100.51.198.rev.
E) In the REV record for arpa.in-addr.198.51.100.165. In the REV record for arpa.in-addr.198.51.100.165.

Question

Quizplus · Accepted Answer

The PTR record is used to map an IP address to a hostname. In this case, the IP address is 198.51.100.165, and the hostname is 165.100.51.198.in-addr.arpa.

Reverse DNS Assigns Hostnames to IP Addresses