-t parameter is also used to specify the type of DNS record to be queried, but it differs from
-q in that it can query more types of DNS records. Note that some DNS record types can only be queried using either
-t, depending on the version of
nslookup you are using.
nslookup -q=mx example.com
nslookup example.com 188.8.131.52
nslookup -d example.com
nslookup -6 example.com