Question 1

Which of the following commands shows the definition of a given shell command?

Accepted Answer

A)  where 
B)  stat 
C)  type 
D)  case 
A)  where 
B)  stat 
C)  type 
D)  case

Question 2

When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?

Accepted Answer

A)  debug 
B)  lsof 
C)  nessus 
D)  strace 
E)  traceroute 
A)  debug 
B)  lsof 
C)  nessus 
D)  strace 
E)  traceroute

Question 3

In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?

Accepted Answer

A)  Without additional configuration, no users may have user specific crontabs. 
B)  Without additional configuration, all users may have user specific crontabs. 
C)  The cron daemon will refuse to start and report missing files in the system's logfile. 
D)  When a user creates a user specific crontab the system administrator must approve it explicitly. 
A)  Without additional configuration, no users may have user specific crontabs. 
B)  Without additional configuration, all users may have user specific crontabs. 
C)  The cron daemon will refuse to start and report missing files in the system's logfile. 
D)  When a user creates a user specific crontab the system administrator must approve it explicitly.

Question 4

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

Accepted Answer

A)  / usr /share/man 
B)  /opt/man 
C)  / usr /doc/ 
D)  /var/pkg/man 
E)  /var/man 
A)  / usr /share/man 
B)  /opt/man 
C)  / usr /doc/ 
D)  /var/pkg/man 
E)  /var/man

Question 5

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

Accepted Answer

A)  mkcache 
B)  soconfig 
C)  mkldconfig 
D)  lddconfig 
E)  ldconfig 
A)  mkcache 
B)  soconfig 
C)  mkldconfig 
D)  lddconfig 
E)  ldconfig

Question 6

Which of the following sequences in the vi editor saves the opened document and exits the editor? (Choose TWO correct choices.)

Accepted Answer

A)  esc ZZ 
B)  ctrl :w! 
C)  esc zz 
D)  esc :wq! 
E)  ctrl XX 
A)  esc ZZ 
B)  ctrl :w! 
C)  esc zz 
D)  esc :wq! 
E)  ctrl XX

Question 7

Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct choices.)

Accepted Answer

A)  --from= 
B)  --since= 
C)  --until= 
D)  --upto= 
E)  --date= 
A)  --from= 
B)  --since= 
C)  --until= 
D)  --upto= 
E)  --date=

Question 8

What is true regarding a default route?

Accepted Answer

A)  The default route is always used first.  When the default route is not available more specific routes are tried. 
B)  When a default route is set, all other routes are disabled until the default route is deleted. 
C)  The default route is only used if there is not a more specific route to a destination host or network. 
D)  Without a default route, no network communication even in directly attached networks is possible. 
A)  The default route is always used first.  When the default route is not available more specific routes are tried. 
B)  When a default route is set, all other routes are disabled until the default route is deleted. 
C)  The default route is only used if there is not a more specific route to a destination host or network. 
D)  Without a default route, no network communication even in directly attached networks is possible.

Question 9

Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct choices.)

Accepted Answer

A)  ~/.bashconf 
B)  ~/.bashrc 
C)  ~/.bashdefaults 
D)  ~/.bash_etc 
E)  ~/.bash_profile 
A)  ~/.bashconf 
B)  ~/.bashrc 
C)  ~/.bashdefaults 
D)  ~/.bash_etc 
E)  ~/.bash_profile

Question 10

Which of the following signals is sent to a process when the key combination CTRL+C is pressed on the keyboard?

Accepted Answer

A)  SIGTERM 
B)  SIGINT 
C)  SIGSTOP 
D)  SIGKILL 
A)  SIGTERM 
B)  SIGINT 
C)  SIGSTOP 
D)  SIGKILL

Question 11

Which of the following commands prints all files and directories within the /tmp directory or its subdirectories which are also owned by the user root? (Choose TWO correct choices.)

Accepted Answer

A)  find /tmp -uid root -print 
B)  find -path /tmp -uid root 
C)  find /tmp -user root -print 
D)  find /tmp -user root 
E)  find -path /tmp -user root -print 
A)  find /tmp -uid root -print 
B)  find -path /tmp -uid root 
C)  find /tmp -user root -print 
D)  find /tmp -user root 
E)  find -path /tmp -user root -print

Question 12

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

Accepted Answer

A)  ext2 
B)  ext3 
C)  ext4 
D)  XFS 
E)  VFAT 
A)  ext2 
B)  ext3 
C)  ext4 
D)  XFS 
E)  VFAT

Question 13

A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory?

Accepted Answer

A)  rmdir '~/\dir' 
B)  rmdir "~/\dir" 
C)  rmdir ~/'dir' 
D)  rmdir ~/\dir 
E)  rmdir ~/\dir 
A)  rmdir '~/\dir' 
B)  rmdir "~/\dir" 
C)  rmdir ~/'dir' 
D)  rmdir ~/\dir 
E)  rmdir ~/\dir

Question 14

Which of the following command sets the Bash variable named TEST with the content FOO?

Accepted Answer

A)  set TEST="FOO" 
B)  TEST = "FOO" 
C)  var TEST="FOO" 
D)  TEST="FOO" 
A)  set TEST="FOO" 
B)  TEST = "FOO" 
C)  var TEST="FOO" 
D)  TEST="FOO"

Question 15

Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct choices.)

Accepted Answer

A)  Start and prepare the desktop environment for the user. 
B)  Configure additional devices like new monitors or projectors when they are attached. 
C)  Handle the login of a user. 
D)  Lock the screen when the user was inactive for a configurable amount of time. 
E)  Create an X11 configuration file for the current graphic devices and monitors. 
A)  Start and prepare the desktop environment for the user. 
B)  Configure additional devices like new monitors or projectors when they are attached. 
C)  Handle the login of a user. 
D)  Lock the screen when the user was inactive for a configurable amount of time. 
E)  Create an X11 configuration file for the current graphic devices and monitors.

Question 16

Which of the following is correct when talking about mount points?

Accepted Answer

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. 
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.

Question 17

What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct choices.)

Accepted Answer

A)  To create RAID 9 arrays. 
B)  To dynamically change the size of logical volumes. 
C)  To encrypt logical volumes. 
D)  To create snapshots. 
E)  To dynamically create or delete logical volumes. 
A)  To create RAID 9 arrays. 
B)  To dynamically change the size of logical volumes. 
C)  To encrypt logical volumes. 
D)  To create snapshots. 
E)  To dynamically create or delete logical volumes.

Question 18

When running the command sed -e "s/a/b/" /tmp/file >/tmp/file While /tmp/file contains data, why is /tmp/file empty afterwards?

Accepted Answer

A)  The file order is incorrect. The destination file must be mentioned before the command to ensure redirection. 
B)  The command sed did not match anything in that file therefore the output is empty. 
C)  When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading. 
D)  Redirection for shell commands do not work using the > character. It only works using the | character instead. 
A)  The file order is incorrect. The destination file must be mentioned before the command to ensure redirection. 
B)  The command sed did not match anything in that file therefore the output is empty. 
C)  When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading. 
D)  Redirection for shell commands do not work using the > character. It only works using the | character instead.

Question 19

Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct choices.)

Accepted Answer

A)  0 
B)  1 
C)  3 
D)  5 
E)  6 
A)  0 
B)  1 
C)  3 
D)  5 
E)  6

Question 20

Which variable defines the directories in which a Bash shell searches for executable commands?

Accepted Answer

A)  BASHEXEC 
B)  BASHRC 
C)  PATH 
D)  EXECPATH 
E)  PATHRC 
A)  BASHEXEC 
B)  BASHRC 
C)  PATH 
D)  EXECPATH 
E)  PATHRC

Exam 1: Linux Foundation Certified System Administrator