Q: A _______ record is responsible for resolving an IP to a domain name.
or
Q: Resolving an IP address to a domain name is the responsibility of a _______ record.
- CNAME
- PTR
- NTP
- TXT
Explanation: The phrase that you are searching for is “Reverse DNS” or “PTR (Pointer) record.” According to the Domain Name System (DNS), this particular form of record is the one that is accountable for translating an IP address to a domain name. In contrast to the more usual “forward DNS” method, which resolves domain names to IP addresses, this mechanism operates in the other direction.