Apex domains cannot have CNAME records.
Question and response
Question
dig verat.net. NS
Answer
verat.net. 5 NS ns.beotel.net.
verat.net. 5 NS dns1.verat.net.
verat.net. 5 NS dns2.verat.net.
verat.net. 5 NS ns.beotel.rs.
Authority
The response has no authority records.
Additional
ns.beotel.rs. 5 A 194.106.162.3
ns.beotel.net. 5 A 194.106.162.2
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0