Linux Foundation Linux Foundation Certifications LFCS Questions & Answers

• Question 151:

  What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

  A. I

  Correct Answer: A

• Question 152:

  When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?

  A. -10

  B. 0

  C. 10

  D. 20

  Correct Answer: C

• Question 153:

  Which of the following commands will reduce all consecutive spaces down to a single space?

  A. tr '\s' ' ' < a.txt > b.txt

  B. tr -c ' ' < a.txt > b.txt

  C. tr -d ' ' < a.txt > b.txt

  D. tr -r ' ' '\n' < a.txt >b.txt

  E. tr -s ' ' < a.txt > b.txt

  Correct Answer: E

• Question 154:

  What is the effect of the egrep command when the -v option is used?

  A. It enables color to highlight matching parts.

  B. It only outputs non-matching lines.

  C. It shows the command's version information.

  D. It changes theoutput order showing the last matching line first.

  Correct Answer: B

• Question 155:

  What is true regarding the command sendmail?

  A. With any MTA, the sendmail command must be run periodically by the cron daemon.

  B. All MTAs, including Postfix and Exim, provide a sendmail command.

  C. The sendmail command prints the MTAs queue history of which mails have been sent successfully.

  D. It is only available when the sendmail MTA is installed.

  Correct Answer: B

• Question 156:

  Which of the following commands is used to change options and positional parameters for a runningBash?

  A. history

  B. set

  C. bashconf

  D. setsh

  E. envsetup

  Correct Answer: B

• Question 157:

  After running the command umount /mnt, the following error message is displayed:

  umount: /mnt: device is busy.

  What is a common reason for this message?

  A. The kernel has not finished flushing diskwrites to the mounted device.

  B. A user has a file open in the /mnt directory.

  C. Another file system still contains a symlink to a file inside /mnt.

  D. The files in /mnt have been scanned and added to the locate database.

  E. The kernel thinks that a process is about to open a file in /mnt for reading.

  Correct Answer: B

• Question 158:

  How is a display manager started?

  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.

  Correct Answer: B

• Question 159:

  Which utility would be used to change how often a filesystem check is performed on an ext2 filesystem without losing any data stored on that filesystem?

  A. mod2fs

  B. fsck

  C. tune2fs

  D. mke2fs

  E. fixe2fs

  Correct Answer: C

• Question 160:

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

  A. groupadd, /usr/sbin/groupadd

  Correct Answer: A