use strict;
use warnings;
use Net::DNS;

my $res = Net::DNS::Resolver->new(debug=>0,
    igntc=>1,
    recurse=>1,
    retrans=>0,
    retry=>1
);
$res->nameservers("8.8.8.8");
my %result_set = ();
my $query = Net::DNS::Packet->new("www.google.com", "AAAA");
my $response = $res->send($query);
if ($response->header->ancount > 0) {
    foreach my $rr ($response->answer) {
        if ($rr->type eq "AAAA") {
            $result_set{$rr->address} = 1;
        }
    }
}
use Data::Dumper; print Dumper \%result_set;