LFCS Exam - Linux Foundation Certified System Administrator

NEW QUESTION 1
Which of the following commands creates an ext3 filesystem on /dev/sdb1? (Choose TWO correct answers.)

• A. /sbin/mke2fs -j /dev/sdb1
• B. /sbin/mkfs -t ext3 /dev/sdb1
• C. /sbin/mkfs -c ext3 /dev/sdb1
• D. /sbin/mke3fs -j/dev/sdb1

Answer: AB

NEW QUESTION 2
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)

• A. To create RAID 9 arrays.
• B. To dynamically change the size of logical volumes.
• C. To encrypt logical volumes.
• D. To create snapshots.
• E. To dynamically create or delete logical volumes.

Answer: BDE

NEW QUESTION 3
Which of the following are valid stream redirection operators within Bash? (Choose THREE correct answers.)

• A. <
• B. <<<
• C. >
• D. >>>
• E. %>

Answer: ABC

NEW QUESTION 4
After successfully creating a hard link called bar to the ordinary file foo, foo is deleted from the filesystem. Which of the following describes the resulting situation?

• A. foo and bar would both be removed.
• B. foo would be removed while bar would remain accessible.
• C. foo would be remove
• D. bar would still exist but would be unusable.
• E. Both foo and bar would remain accessible.
• F. The user is prompted whether bar should be removed, too.

Answer: B

NEW QUESTION 5
Which of the following options is used in a GRUB Legacy configuration file to define the amount of time that the GRUB menu will be shown to the user?

• A. hidemenu
• B. splash
• C. timeout
• D. showmenu

Answer: C

NEW QUESTION 6
In a nested directory structure, which find command line option would be used to restrict the command to searching down a particular number of subdirectories?

• A. -dirmax
• B. -maxdepth
• C. -maxlevels
• D. -n
• E. -s

Answer: B

NEW QUESTION 7
Which command chain will count the number of regular files with the name of foo.txt within
/home?

• A. ls -lR /home | grep foo.txt | wc -l
• B. find /home -type f -name foo.txt | wc -l
• C. find /home -name foo.txt -count
• D. find /home -name foo.txt | wc -l
• E. grep -R foo.txt /home | wc -l

Answer: B

NEW QUESTION 8
Which of the following is a legacy program provided by CUPS for sending files to the printer queues on the command line?

• A. lpd
• B. lpp
• C. lpq
• D. lpr

Answer: D

NEW QUESTION 9
What does the ? symbol within regular expressions represent?

• A. Match the preceding qualifier one or more times.
• B. Match the preceding qualifier zero or more times.
• C. Matchthe preceding qualifier zero or one times.
• D. Match a literal ? character.

Answer: C

NEW QUESTION 10
When running the command sed -e "s/a/b/" /tmp/file >/tmp/file
While /tmp/file contains data, why is /tmp/file empty afterwards?

• A. The file order is incorrec
• B. The destination file must be mentioned before the command to ensure redirection.
• C. The command sed did not match anything in that file therefore the output is empty.
• D. When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading.
• E. Redirection for shell commands do not work using the > characte
• F. It only works using the | character instead.

Answer: C

NEW QUESTION 11
Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)

• A. 2001:db8::15 www.example.com www
• B. www.example.com www 203.0.13.15
• C. 203.0.113.15 www.example.com www
• D. www.example.com,www 203.0.13.15,2001:db8::15
• E. 2003.0.113.15,2001:db8::15 www.example.com www

Answer: AC

NEW QUESTION 12
Which type of filesystem is created by mkfs when it is executed with the block device name only and without any additional parameters?

• A. ext2
• B. ext3
• C. ext4
• D. XFS
• E. VFAT

Answer: A

NEW QUESTION 13
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.

Answer: B

NEW QUESTION 14
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.

Answer: B

NEW QUESTION 15
CORRECT TEXT
Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)

• A.

Answer: hwclock/sbin/hwclock/usr/sbin/hwclock

NEW QUESTION 16
CORRECT TEXT
In which directory must definition files be placed to add additional repositories to yum?

• A.

Answer: /etc/yum.repos.d/etc/yum.repos.d/yum.repos.dyum.repos.d/

NEW QUESTION 17
Given the following routing table:

How would an outgoing packet to the destination 192.168.2.150 be handled?

• A. It would be passed to the default router 192.168.178.1 on wlan0.
• B. It would be directly transmitted on the device eth0.
• C. It would be passed to the default router 255.255.255.0 on eth0.
• D. It would be directly transmitted on the device wlan0.
• E. It would be passed to the router 192.168.1.1 on eth0.

Answer: E

NEW QUESTION 18
CORRECT TEXT
What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Specify ONLY the command without any path or parameters.)

• A.

Answer: xdm

NEW QUESTION 19
What do the permissions -rwSr-xr-x mean for a binary file when it is executed as a command?

• A. The command is SetUID and it will be executed with the effective rights of the owner.
• B. The command will be executed with the effective rights of the group instead of the owner.
• C. The execute flag is not set for the owne
• D. Therefore the SetUID flag is ignored.
• E. The command will be executed with the effective rights of the owner and group.

Answer: C

NEW QUESTION 20
Which of the following commands set the sticky bit for the directory /tmp? (Choose TWO correct answers.)

• A. chmod +s /tmp
• B. chmod +t /tmp
• C. chmod 1775 /tmp
• D. chmod 4775 /tmp
• E. chmod 2775 /tmp

Answer: BC

NEW QUESTION 21
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

Answer: B

NEW QUESTION 22
In Bash, inserting 1>&2 after a command redirects

• A. standard error to standard input.
• B. standard input to standard error.
• C. standard output to standard error.
• D. standard error to standardoutput.
• E. standard output to standard input.

Answer: C

NEW QUESTION 23
CORRECT TEXT
What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.)

• A.

Answer: xorg.conf

NEW QUESTION 24
Which character starts a comment line in a shell script file?

• A. ;
• B. *
• C. #
• D. /

Answer: C

NEW QUESTION 25
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

Answer: C

NEW QUESTION 26
What is the difference between the commands test -e path and test -f path?

• A. They are equivalent options with the same behaviour.
• B. The -f option tests for a regular fil
• C. The -e option tests for an empty file.
• D. Both options check the existence of the pat
• E. The -f option also confirms that it is a regular file.
• F. The -f option tests for a regular fil
• G. The -e option tests for an executable file.

Answer: C

NEW QUESTION 27
Which of the following command sequences overwrites the file foobar.txt?

• A. echo "QUIDQUIDAGIS" >> foobar.txt
• B. echo "QUIDQUIDAGIS" < foobar.txt
• C. echo "QUIDQUIDAGIS" > foobar.txt
• D. echo "QUIDQUIDAGIS" | foobar.txt

Answer: :C

NEW QUESTION 28
Which of the following files assigns a user to its primary group?

• A. /etc/pgroup
• B. /etc/shadow
• C. /etc/group
• D. /etc/passwd
• E. /etc/gshadow

Answer: D

NEW QUESTION 29
......