Birgitta wants to create a new DNS entry for a host that is already defined in the DNS
database. Currently, the system is named ciw. Birgitta wants to continue using this name,
but also create a new name: certification. Which entry should she create?

A.
State of Authority (SOA)

B.
Address (A)

C.
Pointer (PTR)

D.
Canonical Name (CNAME)

Explanation:
The CNAME record is used for alias assignments.
Incorrect Answers:
A: SOA records are used to define the zone itself.
B: A records are used to assign a name to an IP address. If you use the A record, then youwill
have two different hosts pointing to the same IP address. Although this is a validconfiguration, it is
more proper to use the CNAME record.
C: The PTR record is used for the reverse DNS lookup, where an IP address is providedand a
name is returned.