You are setting up DNS, and you want to assign a Pointer (PTR) record to a computer.
What does the PTR record accomplish?

A.
The PTR record identifies DNS servers for the DNS domain

B.
The PTR record identifies the DNS server with the best source of information for the
DNS domain

C.
The PTR record performs reverse DNS lookups

D.
The PTR record creates an alias for a specific host

Explanation:
The PTR record is used for reverse DNS lookups where you provide
the IP address, and DNS provides the name that belongs with the IP address.
Incorrect Answers:
A: The PTR record does not identify DNS servers, this is usually done via a NS record.
B: The PTR record does not point to DNS servers.
D: The PTR record is not considered an alias, an alias is specified via the CNAMErecord.