Question

Which of the DNS database records listed below returns a 32-bit IP address?

a. MX (Mail Exchanger Record)
b. AAAA (Record Is A DNS Record That Maps To An IPv6 Address)
c. CNAME (Canonical Name)
d. A (Associates A Name To The Server IP Address)
e. PTR (Pointer Record)

Answer 1

The A (Address) record in the DNS database returns a 32-bit IP address. It associates domain names with the server's IPv4 address, unlike other records which serve different functions such as email routing or aliases.

Step-by-step explanation:

The DNS record that returns a 32-bit IP address is the A (Address) record. When you query DNS for a domain name, the A record is responsible for mapping the human-readable domain to the corresponding 32-bit IPv4 address of the server where the website is hosted. The other records serve different purposes: The MX record directs email to mail servers, the AAAA record maps domain names to 128-bit IPv6 addresses, CNAME is used to create aliases for domain names, and PTR records are used for reverse DNS lookups.