There are so many records available in DNS.
1. A record
2. Cname record
3. TXT record
4. MX record
5. SOA record
6. Ptr record
7. Dname record
To know more about these records visit http://www.serverintellect.com/support/dns/dns-records.aspx . If you have any queries regarding these records use the link http://www.whoisxy.com/dns-query.aspx .