Free Access LinuxFoundation.LFCS.v2022-02-12.q121 Practice Test (Page 12)

In order to display all currently mounted filesystems, which of the following commands could be used? (Choose TWO correct answers.)

A.mount

B.lsmounts

C.cat /proc/filesystems

D.cat /proc/self/mounts

E.free

How can the normal output of a command be written to a file while discarding the error output?

A.command >file 2>/dev/null

B.command < output > /dev/null

C.command > discard-error > file

D.command > /dev/null 2&>1 output

E.command >2>file 1&>/dev/null

Which of the following commands overwrites the bootloader located on /dev/sda without overwriting the partition table or any data following it?

A.dd if=/dev/zero of=/dev/sda bs=440

B.dd if=/dev/zero of=/dev/sda bs=512 count=1

C.dd if=/dev/zero of=/dev/sda bs=512

D.dd if=/dev/zero of=/dev/sda bs=440 count=1

Which type of filesystem is created by mkfs when it is executed with the block device name only and without any additional parameters?

A.ext2

B.ext4

C.VFAT

D.ext3

E.XFS

Which of the following settingsfor umask ensures that new files have the default permissions -rw-r----- ?

A.0640

B.0017

C.0038

D.0027

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