Linux Foundation Linux Foundation Certifications LFCS Questions & Answers

• Question 111:

  Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

  A. sed '/bob/Bob' letter >newletter

  B. sed s/bob/Bob/ letter < newletter

  C. sed 's/bob/Bob' letter > newletter

  D. sed 's/bob/Bob/g' letter > newletter

  E. sed 's/bob, Bob/' letter > newletter

  Correct Answer: D

• Question 112:

  Which command makes the shell variable named VARIABLE visible to subshells?

  A. export $VARIABLE

  B. export VARIABLE

  C. set $VARIABLE

  D. set VARIABLE

  E. env VARIABLE

  Correct Answer: B

• Question 113:

  What is the purpose of a screen reader?

  A. It reads text displayed on the screen to blind or visually impaired people.

  B. It reads the parameters of the attached monitors and creates an appropriate X11 configuration.

  C. It displays lines and markers to help people use speed reading techniques.

  D. It manages and displays files that contain e-books.

  Correct Answer: A

• Question 114:

  Which of the following commands prints a listof usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

  A. fmt -f 1,4 /etc/passwd

  B. split -c 1,4 /etc/passwd

  C. cut -d : -f 1,4 /etc/passwd

  D. paste -f 1,4 /etc/passwd

  Correct Answer: C

• Question 115:

  Which of the following Linux filesystems preallocates a fixed number of inodes at the filesystem's make/creation time and does NOT generate them as needed? (Choose TWO correct answers.)

  A. ext3

  B. JFS

  C. ext2

  D. XFS

  E. procfs

  Correct Answer: AC

• Question 116:

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

  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.

  Correct Answer: BC

• Question 117:

  What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

  A. route del default

  B. ifconfig unset default

  C. netstat -r default

  D. ip route del default

  E. sysctl ipv4.default_gw=0

  Correct Answer: AD

• Question 118:

  Which of the following commands lists all currently installedpackages when using RPM package management?

  A. yum --query --all

  B. yum --list --installed

  C. rpm --query --all

  D. rpm --list -installed

  Correct Answer: C

• Question 119:

  Which of the following commands is used to rotate, compress, and mail system logs?

  A. rotatelog

  B. striplog

  C. syslogd --rotate

  D. logrotate

  E. logger

  Correct Answer: D

• Question 120:

  Which of the following files, located in the user home directory, is used to store the Bash history?

  A. .bash_history

  B. .bash_histfile

  C. .history

  D. .bashrc_history

  E. .history_bash

  Correct Answer: A