Apex domains cannot have CNAME records.
Question and response
Question
dig test2.zoodream.com.ua. NS
Answer
test2.zoodream.com.ua. 5 NS ns.test2.zoodream.com.ua.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0