Linux Foundation Linux Foundation Certifications LFCS Questions & Answers

• Question 61:

  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)

  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

  Correct Answer: DE

• Question 62:

  Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

  A. ifconfig

  B. dig

  C. netstat

  D. route

  E. trackroute

  Correct Answer: CD

• Question 63:

  Which of the following commands can be used to limit the amount of memory a user may use?

  A. umask

  B. usermod

  C. ulimit

  D. passwd

  E. chage

  Correct Answer: C

• Question 64:

  What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)

  A. Entries for all possible devices get created on boot even if those devicesare not connected.

  B. Additional rules for udev can be created by adding them to /etc/udev/rules.d/.

  C. When using udev, it is not possible to create block or character devices in /dev/ using mknod.

  D. The /dev/ directory is a filesystem of type tmpfs andis mounted by udev during system startup.

  E. The content of /dev/ is stored in /etc/udev/dev and is restored during system startup.

  Correct Answer: BD

• Question 65:

  Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?

  A. chmod u=rwx,go=rx /bin/foo

  B. chmod o+rwx,a+rx /bin/foo

  C. chmod 577 /bin/foo

  D. chmod 775 /bin/foo

  Correct Answer: A

• Question 66:

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

  A. dmesg, /bin/dmesg

  Correct Answer: A

• Question 67:

  Which of the following commands will help identify a broken router between the local and the remote machine?

  A. ps

  B. netstat

  C. nslookup

  D. ifconfig

  E. traceroute

  Correct Answer: E

• Question 68:

  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)

  A. up

  Correct Answer: A

• Question 69:

  Which of the following commands will create an archive file, named backup.tar, containing all the files from the directory /home?

  A. tar /home backup.tar

  B. tar -cf /home backup.tar

  C. tar -xf /home backup.tar

  D. tar -xf backup.tar /home

  E. tar -cf backup.tar /home

  Correct Answer: E

• Question 70:

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

  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.

  Correct Answer: B