Apex domains cannot have CNAME records.
Question and response
Question
dig myebiz.ca. NS
Answer
myebiz.ca. 5 NS ns2.carrierzone.com.
myebiz.ca. 5 NS ns3.carrierzone.com.
myebiz.ca. 5 NS ns4.carrierzone.com.
myebiz.ca. 5 NS ns1.carrierzone.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0