Linux Systems Question: Tell me which command is used to check filesystem usage in a system? a) mount b) df c) du d) dd Linux OS Systems Interview QuestionAnswer: b) df Previous QuestionNext QuestionTell me which filesystem can be used to change certain kernel parameters at runtime using sysctl command? a) Ext3 b) Sysfs c) Ext4 d) ProcfsExplain ____ is a directory (which should exist), on which to mount the file system? a) Root b) Boot c) Mount-point d) Partition