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The LFCS certification exam is an industry-recognized credential that demonstrates a candidate's proficiency in managing system resources, configuring networking, and securing Linux-based systems. It is an excellent way for IT professionals to showcase their expertise and stand out in a competitive job market.
The LFCS exam is designed to be challenging and comprehensive, covering a wide range of topics and skills. Candidates are expected to have a deep understanding of Linux operating systems, including popular distributions such as Ubuntu, Debian, and Red Hat. LFCS exam consists of both multiple-choice questions and hands-on tasks, requiring candidates to demonstrate their ability to perform various system administration tasks in a real-world environment.
NEW QUESTION # 117
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?
- A. Without additional configuration, no users may have user specific crontabs.
- B. The cron daemon will refuse to start and report missing files in the system's logfile.
- C. Without additional configuration, all users may have user specific crontabs.
- D. When a user creates a user specific crontab the system administrator must approve it explicitly.
Answer: A
NEW QUESTION # 118
SIMULATION
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.)
Answer:
Explanation:
newaliases -or- sendmail -bi
NEW QUESTION # 119
What is the purpose of a screen reader?
- A. It manages and displays files that contain e-books.
- B. It reads the parameters of the attached monitors and creates an appropriate X11 configuration.
- C. It reads text displayed on the screen to blind or visually impaired people.
- D. It displays lines and markers to help people use speed reading techniques.
Answer: C
NEW QUESTION # 120
CORRECT TEXT
With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the
environment variable without any additional commands or values.)
Answer:
Explanation:
DISPLAY,
$DISPLAY
NEW QUESTION # 121
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?
- A. Without additional configuration, no users may have user specific crontabs.
- B. The cron daemon will refuse to start and report missing files in the system's logfile.
- C. Without additional configuration, all users may have user specific crontabs.
- D. When a user creates a user specific crontab the system administrator must approve it explicitly.
Answer: A
NEW QUESTION # 122
CORRECT TEXT
Which command will display messages from the kernel that were output during the normal
boot sequence?
Answer:
Explanation:
dmesg, /bin/dmesg
NEW QUESTION # 123
Which character, added to the end of a command, runs that command in the background as a child process of the current shell?
- A. #
- B. +
- C. !
- D. %
- E. &
Answer: E
NEW QUESTION # 124
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 -name foo.txt | wc -l
- C. grep -R foo.txt /home | wc -l
- D. find /home -type f -name foo.txt | wc -l
- E. find /home -name foo.txt -count
Answer: D
NEW QUESTION # 125
A user accidentally created the subdirectory \dir in his home directory. Which of the following commands will remove that directory?
- A. rmdir '~/\dir'
- B. rmdir ~/'dir'
- C. rmdir ~/\dir
- D. rmdir ~/\\dir
- E. rmdir "~/\dir"
Answer: D
NEW QUESTION # 126
Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)
- A. search
- B. substitute
- C. lookup
- D. method
- E. nameserver
Answer: A,E
NEW QUESTION # 127
CORRECT TEXT
Which option in the /etc/ntp.conf file specifies an external NTP source to be queried for time information? (Specify ONLY the option without any values or parameters.)
Answer:
Explanation:
server
NEW QUESTION # 128
SIMULATION
Which umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------) for directories? (Specify only the numerical umask value.)
Answer:
Explanation:
0077, 077
NEW QUESTION # 129
When starting a program with the nice command without any additional parameters, which nice level is set for the resulting process?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 130
After moving data to a new filesystem, how can the former path of the data be kept intact in order to avoid reconfiguration of existing applications? (Choose TWO correct answers.)
- A. By creating an ACL redirection from the old to the new path of the data.
- B. By mounting the new filesystem on the original path of the data.
- C. By creating a symbolic link from the old to the new path of the data.
- D. By running the command touch on the old path.
- E. By creating a hard link from the old to the new path of the data.
Answer: B,C
NEW QUESTION # 131
CORRECT TEXT
Which command is used to set the hostname of the local system? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
hostname
NEW QUESTION # 132
Which of the following is observed and corrected by a NTP client?
- A. The skew in time between the system clock and the hardware clock.
- B. Adjustments needed to support Daylight Saving Time.
- C. The skew in time between the system clock and the reference clock.
- D. Changes in the time zone of the current computer's location.
Answer: C
NEW QUESTION # 133
Which of the following pieces of information of an existing file is changed when a hard link pointing to that file is created?
- A. Modify timestamp
- B. Inode number
- C. File size
- D. Permissions
- E. Link count
Answer: E
NEW QUESTION # 134
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Linux Foundation Certified System Administrator (LFCS) certification exam is a vendor-neutral exam that tests the knowledge and skills required to work as a Linux system administrator. The Linux Foundation, a non-profit organization that supports the growth of open-source software, offers this certification to IT professionals who want to demonstrate their expertise in Linux administration.
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