Practice
Learn at your own pace. Answer questions one at a time with instant feedback and explanations.
Start practiceLinux Foundation Certified System Administrator
Performance-based Linux system administration certification.
Mock exam
Simulate the real thing. Take a timed, full-length test and review your score and weak areas.
Sign up to startStudy your way: beyond Practice and Mock exam, choose adaptive, hard mode, ready review, objective coverage, or retry-your-misses — and set your own question count, timer, and pass mark.
About this exam
Validates real-world Linux system administration tasks at the command line.
Who should take this exam
Linux administrators, cloud operators, SREs, and systems engineers.
Career benefits
Proves hands-on ability to administer Linux systems in production-style scenarios.
How to prepare
Review the LFCS domains and practice command-line administration, networking, storage, services, users, and troubleshooting.
Quick facts
Exam cost$445 USD
Valid for2 years
Length120 minutes
FormatOnline proctored performance-based exam
Practice questions125
Objectives5
Official pageView
What's covered
1. Operations Deployment
25%2. Networking
25%3. Storage
20%4. Essential Commands
20%5. Users and Groups
10%Frequently asked questions
Are these real exam questions?
No. These are original practice questions written to match the exam objectives, each with an explanation so you actually learn the material — not exam dumps.
How does practice mode work?
You answer questions one at a time with instant feedback and explanations. Over time the app adapts, prioritizing the objectives and questions you struggle with most.
What is a mock exam?
A timed, full-length simulation that holds feedback until the end, then shows your score, pass/fail result, and a breakdown by objective.
Can I customize how I study?
Yes. Pick the study mode that fits — adaptive practice, hard mode, ready-for-review, objective coverage, or retrying questions you've missed — and set your own question count, timer, and passing score for each session.
Do I need an account?
You can try free questions for this exam without signing in. Create a free account to save your progress, track weak objectives, and unlock the full question bank.