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Linux Foundation LFCS Exam Questions

Exam Name: LINUX FOUNDATION CERTIFIED SYSTEM ADMINISTRATOR
Exam Code: LFCS
Related Certification(s): Linux Foundation Certified SYSADMIN LFCS Certification
Certification Provider: Linux Foundation
Actual Exam Duration: 120 Minutes
Number of LFCS practice questions in our database: 260 (updated: Jun. 03, 2025)
Expected LFCS Exam Topics, as suggested by Linux Foundation :
  • Topic 1: Operations Deployment: In this topic, Linux system administrators focus on deploying and managing system operations. It covers configuring kernel parameters for both persistent and non-persistent changes, ensuring systems are optimized. Key skills include diagnosing and troubleshooting processes and services, managing job scheduling for automated command execution, and handling software package installations and maintenance.
  • Topic 2: Networking: This topic hones the Linux system administrator's expertise in configuring IPv4 and IPv6 networking, hostname resolution, and synchronizing system time via time servers. Networking troubleshooting and monitoring are integral, along with configuring OpenSSH for secure connections. Skills in packet filtering, NAT, port redirection, and static routing are emphasized.
  • Topic 3: Storage: Linux system administrators delve into configuring and managing Logical Volume Manager (LVM) storage in this section. Core tasks involve managing virtual file systems, creating, troubleshooting filesystems, and leveraging remote filesystems and network block devices. The ability to configure swap space, filesystem automounters, and monitor storage performance is assessed.
  • Topic 4: Essential Commands: This topic ensures Linux system administrators are adept at executing essential system commands. Proficiency in basic Git operations, service creation and troubleshooting, and system performance monitoring is critical. Key tasks include determining constraints for applications and services, resolving disk space issues, and managing SSL certificates.
  • Topic 5: Users and Groups: This section assesses Linux system administrators on managing user and group accounts, both locally and via LDAP. The topic includes configuring resource limits, managing personal and system-wide environment profiles, and using Access Control Lists (ACLs). These skills are essential for maintaining secure and efficient user management in a multi-user Linux environment.
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Annamae

1 months ago
Successfully passed LFCS! Pass4Success's practice exams were key. Thanks for the quick study guide!
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Hayley

2 months ago
SELinux or AppArmor questions may appear. Understand basic concepts and how to manage security contexts.
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Krissy

2 months ago
LFCS certification achieved! Pass4Success's materials were a perfect match. Grateful for the fast prep!
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Chuck

3 months ago
Time synchronization is important. Know how to configure NTP servers and manage system time with timedatectl.
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Janessa

3 months ago
Firewall configuration comes up. Be prepared to set up and manage firewall rules using firewalld or ufw.
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Justine

3 months ago
Passed LFCS with flying colors! Pass4Success's questions were on point. Thanks for the quick prep!
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Teddy

4 months ago
Logging and log rotation are tested. Understand how to configure logrotate and view system logs using journalctl.
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Aliza

4 months ago
Shell scripting tasks are common. Practice writing simple bash scripts that automate system tasks or process text files.
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Jesus

4 months ago
LFCS exam success! Pass4Success's practice tests were invaluable. Appreciate the timely help!
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Carmelina

4 months ago
I passed the LFCS exam, and Pass4Success practice questions were very helpful. One question that caught me off guard was about setting up a cron job to run a script daily. I had to remember the correct syntax for the cron entry.
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Kassandra

5 months ago
Filesystem hierarchy is a key concept. You might need to navigate and manage files in specific system directories. Know the purpose of each major directory.
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Lenora

5 months ago
The exam includes tasks on process management. Be ready to monitor, kill, and adjust process priorities. Study ps, top, and nice commands.
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Annmarie

5 months ago
Aced LFCS! Pass4Success's materials were crucial. Thanks for the efficient study resources!
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Alonso

6 months ago
Backup and restore operations are important. Familiarize yourself with tar and rsync commands for creating and managing backups.
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Merri

6 months ago
Just passed the LFCS exam, and the Pass4Success practice questions were a lifesaver. There was a question on how to check the status of a running process using `ps` and `top`. I wasn't sure about the best approach but managed to answer it.
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Wilburn

6 months ago
Package management is tested extensively. Know how to install, update, and remove packages using apt or yum, depending on the distribution.
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Ulysses

6 months ago
LFCS certified! Pass4Success's questions matched the real exam. Thank you for the quick prep!
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Twanna

6 months ago
I successfully passed the LFCS exam, and Pass4Success practice questions played a big role. One question that puzzled me was about configuring a service to start at boot using `systemctl`. I had to think hard about the correct command.
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Cristy

6 months ago
File permissions come up often. Practice changing permissions and ownership using chmod and chown. You might need to set complex permissions with numeric notation.
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Wynell

7 months ago
Happy to share that I passed the LFCS exam! The Pass4Success practice questions were invaluable. There was a question about creating and mounting a new filesystem using `mkfs` and `mount`. I had to recall the exact steps, but it worked out.
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Alfreda

7 months ago
Service management is crucial. Be prepared to start, stop, and configure system services using systemctl. Understanding unit files is important too.
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Lynelle

7 months ago
Passed LFCS today! Pass4Success's exam prep was a lifesaver. Highly recommend!
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Marjory

8 months ago
Network configuration is a key topic. You may need to set up static IP addresses or configure network interfaces. Familiarize yourself with ip and nmcli commands.
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Micaela

8 months ago
I passed the LFCS exam, thanks to Pass4Success practice questions. One challenging question asked how to add a user to multiple groups using the `usermod` command. I was a bit unsure about the exact syntax but managed to get it right.
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Goldie

8 months ago
LFCS exam was tough, but I made it! Grateful for Pass4Success's relevant practice questions.
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Antonio

8 months ago
The exam tests your skills in managing storage. Expect tasks involving partitioning disks, creating filesystems, and mounting volumes. Make sure you're comfortable with fdisk, mkfs, and mount commands.
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Nathalie

8 months ago
Just cleared the LFCS exam, and I owe a lot to the practice questions from Pass4Success. There was a tricky question on how to use `tar` to create a compressed archive of a directory. I had to think twice about the options but got through it.
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Mitsue

9 months ago
Just passed the LFCS exam! Be ready for questions on managing users and groups. You might need to create users with specific settings or modify group permissions. Study usermod and groupadd commands thoroughly.
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Ettie

9 months ago
I recently passed the Linux Foundation Certified System Administrator exam, and the Pass4Success practice questions were a great help. One question that stumped me was about configuring a static IP address using the `nmcli` command. I wasn't entirely sure of the syntax, but I managed to figure it out.
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Crista

9 months ago
Just passed LFCS! Pass4Success materials were spot-on. Thanks for helping me prep quickly!
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Mireya

10 months ago
Passing the Linux Foundation Certified System Administrator exam was a great accomplishment for me, and I couldn't have done it without the help of Pass4Success practice questions. One question that I found particularly challenging was related to booting or changing the system into different operating modes. I had to carefully think through the options, but in the end, I made the right choice and passed the exam.
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Eric

10 months ago
My experience taking the Linux Foundation Certified System Administrator exam was intense, but ultimately rewarding. Thanks to Pass4Success practice questions, I was able to confidently tackle topics like updating software for functionality and security. One question that I remember was about creating, deleting, and modifying local groups and group memberships. It was a tricky one, but I managed to answer it correctly and pass the exam.
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Noah

11 months ago
Just passed the LFCS exam! A key topic was system security. Expect questions on configuring firewall rules with iptables. Study how to set up and manage basic firewall configurations. Thanks to Pass4Success for their spot-on practice questions that helped me prep quickly!
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Ciara

11 months ago
I recently passed the Linux Foundation Certified System Administrator exam with the help of Pass4Success practice questions. The exam was challenging, but I felt well-prepared thanks to the practice questions. One question that stood out to me was related to configuring networking and hostname resolution statically or dynamically. I wasn't completely sure of the answer, but I took my best guess and ended up passing the exam.
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Free Linux Foundation LFCS Exam Actual Questions

Note: Premium Questions for LFCS were last updated On Jun. 03, 2025 (see below)

Question #1

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

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Correct Answer: A, D

Question #2

What does the command mount -a do?

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Correct Answer: D

Question #3

What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

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Correct Answer: A

Question #4

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

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Correct Answer: B

Question #5

What is the purpose of the Bash built-in export command?

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Correct Answer: D

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