Question 1

To prevent a specific user from scheduling tasks with at, what should the administrator do?

Accepted Answer

A)  Add the specific user to /etc/at.allow file. 
B)  Add the specific user to [deny] section in the /etc/atd.conf file. 
C)  Add the specific user to /etc/at.deny file. 
D)  Add the specific user to nojobs group. 
E)  Run the following: atd --deny [user]. 
A)  Add the specific user to /etc/at.allow file. 
B)  Add the specific user to [deny] section in the /etc/atd.conf file. 
C)  Add the specific user to /etc/at.deny file. 
D)  Add the specific user to nojobs group. 
E)  Run the following: atd --deny [user].

Question 2

What of the following can be done by the command ifconfig? (Choose TWO correct choices.)

Accepted Answer

A)  Set a network interface active or inactive. 
B)  Specify the kernel module to be used with a network interface. 
C)  Allow regular users to change the network configuration of a network interface. 
D)  Change the netmask used on a network interface. 
E)  Specify which network services are available on a network interface. 
A)  Set a network interface active or inactive. 
B)  Specify the kernel module to be used with a network interface. 
C)  Allow regular users to change the network configuration of a network interface. 
D)  Change the netmask used on a network interface. 
E)  Specify which network services are available on a network interface.

Question 3

How is a display manager started?

Accepted Answer

A)  It is started by a user using the command startx. 
B)  It is started like any other system service by the init system. 
C)  It is started by inetd when a remote hosts connects to the X11 port. 
D)  It is started automatically when a X11 user logs in to the system console. 
A)  It is started by a user using the command startx. 
B)  It is started like any other system service by the init system. 
C)  It is started by inetd when a remote hosts connects to the X11 port. 
D)  It is started automatically when a X11 user logs in to the system console.

Question 4

Which of the following characters can be combined with a separator string in order to read from the current input source until the separator string, which is on a separate line and without any trailing spaces, is reached?

Accepted Answer

A)  << 
B)  <| 
C)  !< 
D)  &< 
A)  << 
B)  <| 
C)  !< 
D)  &<

Question 5

Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct choices.)

Accepted Answer

A)  The user issuing the command must be in the group script. 
B)  The script file must be found in the $PATH. 
C)  The script file must have the executable permission bit set. 
D)  The script must begin with a shebang-line (#!) that points to the correct interpreter. 
E)  The file system on which the script resides must be mounted with the option scripts. 
A)  The user issuing the command must be in the group script. 
B)  The script file must be found in the $PATH. 
C)  The script file must have the executable permission bit set. 
D)  The script must begin with a shebang-line (#!) that points to the correct interpreter. 
E)  The file system on which the script resides must be mounted with the option scripts.

Question 6

Which approach will provide a listing of the contents in a tar archive?

Accepted Answer

A)  Use the tar command with -t. 
B)  Use the grep command. 
C)  Use the find command. 
D)  Use the zless command. 
E)  Use the zlist command. 
A)  Use the tar command with -t. 
B)  Use the grep command. 
C)  Use the find command. 
D)  Use the zless command. 
E)  Use the zlist command.

Question 7

Which of the following commands lists all defined variables and functions within Bash?

Accepted Answer

A)  env 
B)  set 
C)  env -a 
D)  echo $ENV 
A)  env 
B)  set 
C)  env -a 
D)  echo $ENV

Question 8

Which of the following commands puts the output of the command date into the shell variable mydate?

Accepted Answer

A)  mydate="$(date)" 
B)  mydate="exec date" 
C)  mydate="$((date))" 
D)  mydate="date" 
E)  mydate="${date}" 
A)  mydate="$(date)" 
B)  mydate="exec date" 
C)  mydate="$((date))" 
D)  mydate="date" 
E)  mydate="${date}"

Question 9

What is true about the ntpdate command?

Accepted Answer

A)  It is the primary management command for the NTP time server. 
B)  It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds). 
C)  It queries one or more NTP time servers and adjusts the system time accordingly. 
D)  It sends the local system time to one or many remote NTP time servers for redistribution. 
E)  It can be used by any user to set the user clock independently of the system clock. 
A)  It is the primary management command for the NTP time server. 
B)  It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds). 
C)  It queries one or more NTP time servers and adjusts the system time accordingly. 
D)  It sends the local system time to one or many remote NTP time servers for redistribution. 
E)  It can be used by any user to set the user clock independently of the system clock.

Question 10

Which command will display messages from the kernel that were output during the normal boot sequence?

Accepted Answer

The answer of Which command will display messages from the...

Question 11

Which of the following are valid stream redirection operators within Bash? (Choose THREE correct choices.)

Accepted Answer

A)   
D)  >>> 
E)  %> 
A)   
D)  >>> 
E)  %>

Question 12

Given the following routing table:   How would an outgoing packet to the destination 192.168.2.150 be handled?

Accepted Answer

A)  It would be passed to the default router 192.168.178.1 on wlan0. 
B)  It would be directly transmitted on the device eth0. 
C)  It would be passed to the default router 255.255.255.0 on eth0. 
D)  It would be directly transmitted on the device wlan0. 
E)  It would be passed to the router 192.168.1.1 on eth0. 
A)  It would be passed to the default router 192.168.178.1 on wlan0. 
B)  It would be directly transmitted on the device eth0. 
C)  It would be passed to the default router 255.255.255.0 on eth0. 
D)  It would be directly transmitted on the device wlan0. 
E)  It would be passed to the router 192.168.1.1 on eth0.

Question 13

When given the following command line. echo "foo bar" | tee bar | cat Which of the following output is created?

Accepted Answer

A)  cat 
B)  foo bar 
C)  tee bar 
D)  bar 
E)  foo 
A)  cat 
B)  foo bar 
C)  tee bar 
D)  bar 
E)  foo

Question 14

Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct choices.)

Accepted Answer

A)  2001:db8::15                www.example.com  www 
B)  www.example.com                  www         203.0.13.15 
C)  203.0.113.15                www.example.com  www 
D)  www.example.com,www              203.0.13.15,2001:db8::15 
E)  2003.0.113.15,2001:db8::15  www.example.com  www 
A)  2001:db8::15                www.example.com  www 
B)  www.example.com                  www         203.0.13.15 
C)  203.0.113.15                www.example.com  www 
D)  www.example.com,www              203.0.13.15,2001:db8::15 
E)  2003.0.113.15,2001:db8::15  www.example.com  www

Question 15

The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)

Accepted Answer

/ usr /sha

Question 16

Which of the following are syslog facilities? (Choose TWO correct choices.)

Accepted Answer

A)  local7 
B)  mail 
C)  advanced 
D)  postmaster 
E)  remote 
A)  local7 
B)  mail 
C)  advanced 
D)  postmaster 
E)  remote

Question 17

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

Accepted Answer

A)  cat /proc/self/mounts 
B)  free 
C)  mount 
D)  lsmounts 
E)  cat /proc/filesystems 
A)  cat /proc/self/mounts 
B)  free 
C)  mount 
D)  lsmounts 
E)  cat /proc/filesystems

Question 18

By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the user add command? (Specify the full path to the directory.)

Accepted Answer

The answer of By default, the contents of which directory...

Question 19

Which of the following commands can be used to create a USB storage media from a disk image?

Accepted Answer

A)  gdisk 
B)  dd 
C)  cc 
D)  fdisk 
E)  mount 
A)  gdisk 
B)  dd 
C)  cc 
D)  fdisk 
E)  mount

Question 20

Regarding the command: nice -5 / usr /bin/prog Which of the following statements is correct?

Accepted Answer

A)  / usr /bin/prog is executed with a nice level of -5. 
B)  / usr /bin/prog is executed with a nice level of 5. 
C)  / usr /bin/prog is executed with a priority of -5. 
D)  / usr /bin/prog is executed with a priority of 5. 
A)  / usr /bin/prog is executed with a nice level of -5. 
B)  / usr /bin/prog is executed with a nice level of 5. 
C)  / usr /bin/prog is executed with a priority of -5. 
D)  / usr /bin/prog is executed with a priority of 5.

Exam 1: Linux Foundation Certified System Administrator