We pick m.root-servers.net, one of the 13 root servers (1), and ask it about csoft-msc-h.csoft-msc.ru and learn that ru is delegated to five name servers (2), so we ask e.dns.ripn.net where we learn that csoft-msc.ru is delegated to five name servers, including ns8-cloud.nic.ru (3), so we ask that one where we see a CNAME from csoft-msc-h.csoft-msc.ru to csoft-msc.ru, so we have to start all over again. We already know that ns3-l2.nic.ru is authoritative for csoft-msc.ru (4) and ask it about csoft-msc.ru and get the following answer:
