Question 1

Which configuration file would be edited to change default options for the OpenSSH server?

Accepted Answer

A)  /etc/ssh/sshd_config 
B)  /etc/ssh/ssh 
C)  /etc/ssh/server 
D)  /etc/ssh/ssh_config 
E)  /etc/ssh/ssh_server 
A)  /etc/ssh/sshd_config 
B)  /etc/ssh/ssh 
C)  /etc/ssh/server 
D)  /etc/ssh/ssh_config 
E)  /etc/ssh/ssh_server

Question 2

What output will the command seq 10 produce?

Accepted Answer

A)  A continuous stream of numbers increasing in increments of 10 until stopped. 
B)  The numbers 1 through 10 with one number per line. 
C)  The numbers 0 through 9 with one number per line. 
D)  The number 10 to standard output. 
A)  A continuous stream of numbers increasing in increments of 10 until stopped. 
B)  The numbers 1 through 10 with one number per line. 
C)  The numbers 0 through 9 with one number per line. 
D)  The number 10 to standard output.

Question 3

Which of the following tasks can be accomplished using the command date? (Choose TWO correct choices.)

Accepted Answer

A)  Synchronize the hardware and system clocks. 
B)  Output date and time in different formats. 
C)  Set the system clock. 
D)  Set the hardware clock. 
E)  Update the time via NTP. 
A)  Synchronize the hardware and system clocks. 
B)  Output date and time in different formats. 
C)  Set the system clock. 
D)  Set the hardware clock. 
E)  Update the time via NTP.

Question 4

What is true about the file /etc/localtime?

Accepted Answer

A)  It is a plain text file containing a string such as Europe/Berlin. 
B)  It is created and maintained by the NTP service based on the geolocation of the system's IP address. 
C)  It is a symlink to /sys/device/clock/ltime and always contains the current local time. 
D)  It is either a symlink to or a copy of a timezone information file such as / usr /share/zoneinfo/Europe/Berlin. 
A)  It is a plain text file containing a string such as Europe/Berlin. 
B)  It is created and maintained by the NTP service based on the geolocation of the system's IP address. 
C)  It is a symlink to /sys/device/clock/ltime and always contains the current local time. 
D)  It is either a symlink to or a copy of a timezone information file such as / usr /share/zoneinfo/Europe/Berlin.

Question 5

Which of the following commands can remove a user from a group?

Accepted Answer

A)  grouprm 
B)  groupmod 
C)  passwd 
D)  usergroups 
E)  usermod 
A)  grouprm 
B)  groupmod 
C)  passwd 
D)  usergroups 
E)  usermod

Question 6

Which character, added to the end of a command, runs that command in the background as a child process of the current shell?

Accepted Answer

A)  ! 
B)  + 
C)  & 
D)  % 
E)  # 
A)  ! 
B)  + 
C)  & 
D)  % 
E)  #

Question 7

Which of the following commands will write a message to the terminals of all logged in users?

Accepted Answer

A)  bcast 
B)  mesg 
C)  print 
D)  wall 
E)  yell 
A)  bcast 
B)  mesg 
C)  print 
D)  wall 
E)  yell

Question 8

What is the difference between the i and a commands of the vi editor?

Accepted Answer

A)  i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switches modes automatically. 
B)  i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor. 
C)  i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps the indentation of the previous line. 
D)  i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminates editing. 
A)  i (interactive) requires the user to explicitly switch between vi modes whereas a (automatic) switches modes automatically. 
B)  i (insert) inserts text before the current cursor position whereas a (append) inserts text after the cursor. 
C)  i (independent rows) starts every new line at the first character whereas a (aligned rows) keeps the indentation of the previous line. 
D)  i (interrupt) temporarily suspends editing of a file to the background whereas a (abort) terminates editing.

Question 9

Which of the following are init systems used within Linux systems? (Choose THREE correct choices.)

Accepted Answer

A)  startd 
B)  systemd 
C)  Upstart 
D)  SysInit 
E)  SysV init 
A)  startd 
B)  systemd 
C)  Upstart 
D)  SysInit 
E)  SysV init

Question 10

What word is missing from the following SQL statement?    insert into tablename ________(909, 'text'); (Please specify the missing word using lower-case letters only.)

Accepted Answer

The answer of What word is missing from the following...

Question 11

Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?

Accepted Answer

A)  /etc/keys 
B)  /proc/keys 
C)  /etc/inittab 
D)  /proc/inittab 
E)  /etc/reboot 
A)  /etc/keys 
B)  /proc/keys 
C)  /etc/inittab 
D)  /proc/inittab 
E)  /etc/reboot

Question 12

Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)

Accepted Answer

swapoff, /

Question 13

Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct choices.)

Accepted Answer

A)  uptime 
B)  up 
C)  top 
D)  uname -u 
E)  time -up 
A)  uptime 
B)  up 
C)  top 
D)  uname -u 
E)  time -up

Question 14

Which of the following keywords can be used in the file /etc/nsswitch.conf to specify a source for host name lookups? (Choose TWO correct choices.)

Accepted Answer

A)  resolv 
B)  dns 
C)  remote 
D)  files 
E)  hosts 
A)  resolv 
B)  dns 
C)  remote 
D)  files 
E)  hosts

Question 15

Which of the following commands will output all of the lines with the name Fred in upper or lower case but not the word red from the file data_file? (Choose two)

Accepted Answer

A)  grep -v fred data_file 
B)  grep '[f]red' data_file 
C)  egrep fred data_file 
D)  grep '[Ff]red' data_file 
E)  grep -i fred data_file 
A)  grep -v fred data_file 
B)  grep '[f]red' data_file 
C)  egrep fred data_file 
D)  grep '[Ff]red' data_file 
E)  grep -i fred data_file

Question 16

During a system boot cycle, what program is executed after the BIOS completes its tasks?

Accepted Answer

A)  The bootloader 
B)  The inetd program 
C)  The init program 
D)  The kernel 
A)  The bootloader 
B)  The inetd program 
C)  The init program 
D)  The kernel

Question 17

What is the default action of the split command on an input file?

Accepted Answer

A)  It will break the file into new files of 1,024 byte pieces each. 
B)  It will break the file into new files of 1,000 line pieces each. 
C)  It will break the file into new files of 1,024 kilobyte pieces each. 
D)  It will break the file into new files that are no more than 5% of the size of the original file. 
A)  It will break the file into new files of 1,024 byte pieces each. 
B)  It will break the file into new files of 1,000 line pieces each. 
C)  It will break the file into new files of 1,024 kilobyte pieces each. 
D)  It will break the file into new files that are no more than 5% of the size of the original file.

Question 18

Which of the following details is NOT provided in any output from the netstat utility?

Accepted Answer

A)  broadcast services 
B)  interface statistics 
C)  masquerading connections 
D)  network connections 
E)  routing tables 
A)  broadcast services 
B)  interface statistics 
C)  masquerading connections 
D)  network connections 
E)  routing tables

Question 19

In the vi editor, how can commands such as moving the cursor or copying lines into the buffer be issued multiple times or applied to multiple rows?

Accepted Answer

A)  By using the command :repeat followed by the number and the command. 
B)  By specifying the number right in front of a command such as 4l or 2yj. 
C)  By selecting all affected lines using the shift and cursor keys before applying the command. 
D)  By issuing a command such as :set repetition=4 which repeats every subsequent command 4 times. 
A)  By using the command :repeat followed by the number and the command. 
B)  By specifying the number right in front of a command such as 4l or 2yj. 
C)  By selecting all affected lines using the shift and cursor keys before applying the command. 
D)  By issuing a command such as :set repetition=4 which repeats every subsequent command 4 times.

Question 20

Which of the following kernel parameters instructs the kernel to suppress most boot messages?

Accepted Answer

A)  silent 
B)  verbose=0 
C)  nomesg 
D)  quiet 
A)  silent 
B)  verbose=0 
C)  nomesg 
D)  quiet

Exam 1: Linux Foundation Certified System Administrator