Every zone has one SOA record that finds out which DNS server is the ruler for domains and subdomains in the zone.

NS (name server) record:

An NS record has the FQDN and IP address of a DNS server authoritative for the zone. Each basically and secondary name server authoritative in the domain should have an NS record.

An (address) record:

By far the very common type of resource record, an A record is used to rectify the FQDN of a particular host into its relevant IP address.

CNAME (canonical name) record:

A CNAME record contains an alias (alternate name) for a host.

PTR (pointer) record is the opponent of an A record, a PTR record is used to resolve the IP address of a host into its FQDN.

SRV (service) record is an SRV record is used by DNS clients to identify a server that is running a peculiar service—for instance, to figure out a domain controller so we can log on to the network. SRV records are key to the operation of Active Directory.

MX (mail exchange) record is an MX record points to one or more computers that process SMTP mail for a company or site.