{ header: 
   { id: 39980,
     qr: 1,
     opcode: 0,
     aa: 0,
     tc: 0,
     rd: 1,
     ra: 1,
     res1: 0,
     res2: 0,
     res3: 0,
     rcode: 0 },
  question: [ { name: '8.8.8.8.IN-ADDR.ARPA', type: 12, class: 1 } ],
  answer: 
   [ { name: '8.8.8.8.IN-ADDR.ARPA',
       type: 12,
       class: 1,
       ttl: 21598,
       data: 'google-public-dns-a.google.com' } ],
  authority: [],
  additional: [],
  edns_options: [],
  payload: undefined }
