Question and response
Question
dig www.concursomundooi.oi.com.br. NS
Answer
www.concursomundooi.oi.com.br. 5 CNAME concursomundooi.oi.com.br.
Authority
oi.com.br. 300 SOA ns01.oi.net.br. hostmaster.oi.com.br. 414275588 600 1800 604800 300
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0