Linux Foundation Linux Foundation Certified SYSADMIN LFCS Questions & Answers

• Question 21:

  Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

  A. cmdline, /proc/cmdline

  Correct Answer: A

• Question 22:

  What does the command mount -a do?

  A. It mounts all available filesystems onto the current directory.

  B. It shows all mounted filesystems.

  C. It mounts all user mountable filesystems for the current user.

  D. It mounts all filesystems listed in /etc/fstab which have the option auto set.

  E. It mounts all filesystems listed in /etc/fstab which have the option noauto set.

  Correct Answer: D

• Question 23:

  Which option to the yum command will update the entiresystem? (Specify ONLY the option name without any additional parameters.)

  A. update, upgrade

  Correct Answer: A

• Question 24:

  Which of the following commands will set the variable text to olaf is home?(Choose two)

  A. text=olaf\ is\ home

  B. text=$olaf is home

  C. $text='olaf is home'

  D. text=='olaf is home'

  E. text="olaf is home"

  Correct Answer: AE

• Question 25:

  In compliance with the FHS, in which of the directories are man pages found?

  A. /usr/share/man

  B. /opt/man

  C. /usr/doc/

  D. /var/pkg/man

  E. /var/man

  Correct Answer: A

• Question 26:

  Which of the following commands updates the linker cache of shared libraries?

  A. mkcache

  B. soconfig

  C. mkldconfig

  D. lddconfig

  E. ldconfig

  Correct Answer: E

• Question 27:

  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=512

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

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

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

  Correct Answer: C

• Question 28:

  Which of the following is correct when talking about mountpoints?

  A. Every existing directory can be used as a mount point.

  B. Only empty directories can be used as a mount point.

  C. Directories need to have the SetUID flag set to be used as a mount point.

  D. Files within a directory are deleted when the directory is used as a mount point.

  Correct Answer: A

• Question 29:

  What two character sequence is present at the beginning of an interpreted script? (Please specify the TWO correct characters only)

  A. #!

  Correct Answer: A

• Question 30:

  What does the command mount -a do?

  A. It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.

  B. It shows all mounted file systems that have been automatically mounted.

  C. It opens an editor with root privileges and loads /etc/fstab for editing.

  D. It ensures that all file systems listed with the option auto in /etc/fstab are mounted.

  E. It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.

  Correct Answer: D