You have two users that are abusing the system by creating scripts that run periodically as cron
jobs that continuously harass other users. You have been instructed to disable cron for these two
users. Which three (what?) describe how to configure the server to block specific users from using
cron? (Choose three.)
A.
Protect the crontab command so that only privileged users are allowed to run it.
B.
Remove the /etc/cron.d/cron.allow file and add their names to /etc/cron.d/cron.deny
C.
Remove the crontabs associated with each offending user in the /var/spool/cron/crontabs
director.
D.
Remove their names from the /etc/cron.d/cron.allow file and add their names to
/etc/cron.d/cron.deny
E.
Add their names to the /etc/cron.d/cron.deny file. It is not necessary to remove their names from
the /etc/cron.d/cron.allow file.
F.
Remove their names from the /etc/cron.d/cron.allow file only. If the default /etc/cron.d/cron.deny
exists, it does not need to be changed.
Explanation: