Network+ DNS Records to know for the exam

 DNS Records

RECORD         DESCRIPTION

A                      IPv4 address - Name to address

AAAA               IPv6 address - Name to address

CNAME           Canonical / Alias

MX                   Mail Exchanger

NS                   Name Server - Resolves names to IP addresses

PTR                 Pointer record - Resolves IP address to a name

SOA                 Start of Authority - Primary, serial number for version

SRV                 Service location - LDAP, Kerberos, Global Catalog

TTL                 Time to Live - How long a DNS is cached in seconds

TXT                 Text record - SPF & DKIM