Lpi 102-500 Online Practice Questions and Exam Preparation

Lpi 102-500 Online Questions & Answers

• Question 51:

  What is true regarding TCP port 23?

  A. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.
  B. Port 23 is the well known port for the SSH service which provides secure logins.
  C. Port 23 is the well known port for the rlogin service which is SSL secured by default.
  D. Port 23 is the well known port for the system login services which are encrypted when the user runs the starttls command in his login shell.
  A. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.

• Question 52:

  On a system using systemd-journald, which of the following commands add the message Howdy to the system log? (Choose two)

  A. append Howdy
  B. logger Howdy
  C. systemd-cat echo Howdy
  D. echo Howdy > /dev/journal
  E. journalctl add Howdy
  B. logger Howdy
  C. systemd-cat echo Howdy

• Question 53:

  What output will the following command sequence produce?

  echo '1 2 3 4 5 6' | while read a b c; do

  echo result: $c $b $a;

  done

  A. result: 3 4 5 6 2 1
  B. result: 1 2 3 4 5 6
  C. result: 6 5 4
  D. result: 6 5 4 3 2 1
  E. result: 3 2 1
  A. result: 3 4 5 6 2 1

• Question 54:

  FILL IN THE BLANK

  Which parameter must be passed to ifconfig to activate a previously inactive network interface? (Specify the parameter only without any command, path or additional options)

  up

• Question 55:

  Which of the following keywords can be used in the file /etc/resolv.conf? (Choose Two.)

  A. substitute
  B. nameserver
  C. search
  D. lookup
  E. method
  B. nameserver
  C. search

• Question 56:

  FILL IN THE BLANK

  Which file is processed by newaliases? (Specify the full name of the file, including path.)

  /etc/aliases

• Question 57:

  What is true regarding the statement beginning with #! that is found in the first line of script? (Choose two.)

  A. It prevents the scripts from being executed until the ! is removed.
  B. It triggers the installation of the script's interpreter.
  C. It specifies the path and the arguments of the interpreter used to run the script.
  D. It defines the character encoding of the script.
  E. It is a comment that is ignored by the script interpreter.
  B. It triggers the installation of the script's interpreter.
  C. It specifies the path and the arguments of the interpreter used to run the script.

• Question 58:

  FILL IN THE BLANK

  After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)

  newaliases

• Question 59:

  FILL IN THE BLANK

  Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)

  groupadd

• Question 60:

  What the echo $$ command?

  A. The process ID of the current shell.
  B. The process ID for the following command.
  C. The process ID of the last command executed.
  D. The process ID of the last command which has been placed in the background.
  E. The process ID of the echo command.
  A. The process ID of the current shell.