DNS Record Types

Question 1

A

Answer 1

Address
Links a hostname to an IPv4 address

Question 2

AAAA

Answer 2

Address
Links a hostname to an IPv6 address

Question 3

CNAME

Answer 3

Canonical Name
Points 1 domain to another domain / subdomain (can’t point to an IP address)

Question 4

MX

Answer 4

Mail Exchange
Directs emails to a mail server / domain (can’t point to an IP address)
- lower priority = use first
- set same priority to load balance

Question 5

SOA

Answer 5

Start of Authority
Stores important information about domain or zone

Question 6

PTR

Answer 6

Pointer
Correlates IP address with domain name
Always stored under .ARPA top-level domain

Question 7

TXT

Answer 7

Text
Adds text into the DNS
Domain can have many text records

Question 8

NS

Answer 8

Nameserver
Shows which DNS nameserver has the authority
Stores all DNS records for given domain