We pick a.root-servers.net, one of the 13 root servers (1), and ask it about ajuan.siap-psb.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that siap-psb.com is delegated to three name servers, including ns1.siap-online.com (3), so we ask that one where we see a CNAME from ajuan.siap-psb.com to dinamispool.siap-psb.com, so we have to start all over again. We already know that ns2.siap-online.com is authoritative for siap-psb.com (4) and ask it about dinamispool.siap-psb.com and get the following answer:
