Companycom has restored their mksysb. They notice that the external volume groups cannot be seen. What should be done to access the volume groups?（） A: Run importvg command B: Run synclvodm command C: Recreate volume groups D: Update /etc/filesystem

Companycom has a system running AIX 5.2 and wants to upgrade to AIX 5.3. What method would provide the quickest recovery if the upgrade failed?（） A: Use alt_disk_install B: Backup image to NIM server C: Backup using mksysb to DVD-RAM D: Apply the upgrade and do not commit