Which TWO groups of actions will create a CDROM file system for device cd0 and mount this on /cdfs? (Select 2)

cdutil is not a valid AIX command for creating or mounting CDROM filesystems.

Defining the device and mount point in /etc/cdromd.conf and starting the cdromd daemon with 'startsrc -s cdromd' is a valid method - the daemon reads the configuration and automatically mounts cd0 at /cdfs.

CDROM devices require the cdrfs filesystem type, not jfs2 - defining a CDROM device with vfs type jfs2 is incorrect and will not mount the disc.

The crfs command with '-v cdrfs' specifies the CDROM filesystem type, '-p ro' sets the required read-only permission, '-d cd0' identifies the device, and '-m /cdfs' sets the mount point - this correctly creates the filesystem definition for mounting.

The mkfs command creates journaled filesystems on writable block devices and cannot be used to define a read-only CDROM filesystem for cd0.