Linux OS Management Question:

Filesystem for CDROM is:
a) Ext2
b) Ext3
c) Isofs
d) Procfs

c) Isofs

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Which command is used to check filesystem usage in a system? a) mount b) df c) du d) dd	Which command is used to mount file system read only? a) mount -a b) mount -v c) mount -f d) mount -r