You can run the following command to see what Apache module is loaded
apachectl -t -D DUMP_MODULES

or,

httpd -t -D DUMP_MODULES

If you make a new entry in fstab it will not auto-mount. Therefore you must reload / refresh the entries. A reboot will do this but that is not a friendly way to do it. A quick way to reload new entries in /etc/fstab (fstab) is to use the mount command: mount -a