Which two options prevent unauthorized access to the named service from the mdc utility on Oracle Linux?

A.
runningrndc-confgen -ato generate a key that can be used by both thenamedservice and therndcutility

B.
runningrndc-confgen -ato generate a key that can be used only by thenamedservice

C.
runningrndc -k /etc/rndc.keyto generate a key to be used only by therndcutility

D.
the presence of/etc/named.confwith the lineinclude 7etc/rndc.key”; to allow thenamedservice to check for a matching key from therndcutility

Explanation:
Reference:http://www.oracle-Com/us/technoloaies/linux/suse-linux-to-oracle-linux-wp-1898710.pdffpaae 49)