Free Linux Foundation LFCT Exam Questions

Become Linux Foundation Certified with updated LFCT exam questions and correct answers

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Total 200 Questions | Updated On: Jan 13, 2026

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Question 1

A company is adopting GitOps practices for their cloud infrastructure management. They are deciding on a change management model that enables rapid deployment while ensuring that each change is reviewed and approved by a designated authority. Which model best fits these requirements?

A : Ad-hoc model, where changes are applied directly in production without formal reviews

B : Centralized model, where a central team is responsible for reviewing and applying all changes

C : Trunk-based development model, where developers commit changes directly to the main branch without review

D : Pull request (PR) model, where changes are proposed, reviewed, and approved through pull requests before being merged into the production environment

Answer: D

Question 2

To configure a static IP address of 192.168.1.50 on a network interface named ‘eth0’ on a Linux system using the NetworkManager command-line tool (nmcli), which command should you use?

A : nmcli con add con-name eth0 ifname eth0 type ethernet ip4 192.168.1.50/24

B : nmcli device modify eth0 ipv4.addresses 192.168.1.50/24

C : nmcli con modify eth0 ipv4.addresses 192.168.1.50/24 ipv4.method manual

D : ifconfig eth0 192.168.1.50 netmask 255.255.255.0 up

Answer: C

Question 3

How would you display the differences in content between two configuration files, ‘config_old.txt’ and ‘config_new.txt’, highlighting only the lines that have been added or changed in ‘config_new.txt’?

A : diff config_old.txt config_new.txt

B : diff -u config_old.txt config_new.txt

C : comm -3 config_old.txt config_new.txt

D : diff -Naur config_old.txt config_new.txt

Answer: D

Question 4

An administrator notices that a critical application service isn’t responding as expected on a Linux system. To diagnose the issue, which command should be used to display the current status of a service named ‘app_service’?

A : systemctl status app_service

B : ps aux | grep app_service

C : top -c | grep app_service

D : service app_service status

Answer: A

Question 5

A Linux system administrator has been notified that a specific application, ‘app_service’, is not responding. Which command should they use to check if the ‘app_service’ process is currently running on the system?

A : ps aux | grep app_service

B : systemctl status app_service

C : top -b | grep app_service

D : service app_service status

Answer: A

Page: 1 / 40

Total 200 Questions | Updated On: Jan 13, 2026

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