Apex domains cannot have CNAME records.
Question and response
Question
dig ncloud.africa. NS
Answer
ncloud.africa. 3 NS ns2.host-ww.net.
ncloud.africa. 3 NS ns1.host-ww.net.
ncloud.africa. 3 NS ns1.ncloud.africa.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0