LFCA 123 🐧 LFCA Exam Objectives Review
The LFCA exam was updated on September 16, 2025. The domains remained the same, but the competencies within each domain were adjusted. If you sit for the exam after that date, the updated objectives apply regardless of when you purchased the exam . This chapter is a structured review of the six domains, their weights, and the specific competencies each one tests.
The exam is 60 multiple-choice questions in 90 minutes. The passing score is 75%. One retake is included. The certification is valid for two years. There is no prerequisite .
Key point: The domain weights determine how much of the exam each topic represents. System Administration Fundamentals is the heaviest at 30%. Linux Fundamentals is only 16%. A study plan that matches the exam weights is more efficient than one that spends equal time on every topic .
Why the objectives review matters
The weighting problem. Candidates often over-study Linux Fundamentals because it is the most familiar topic. It accounts for only 16% of the exam. System Administration Fundamentals accounts for 30%—nearly twice as much. The weights are published, and they are the best guide to where study time should go .
The breadth problem. The LFCA is not a deep technical exam. It covers six domains at a conceptual level. The challenge is knowing a little about many topics rather than a lot about one. The objectives review tells you which concepts matter in each domain, so you can focus on understanding rather than memorization.
The version problem. The exam was updated in September 2025. The domains are unchanged, but some competencies were added, removed, or reworded. The current objectives are the ones that apply. Older study materials may reference the previous version .
The entry-level problem. The LFCA is a pre-professional certification. It validates foundational knowledge, not specialization. The exam tests whether you understand the vocabulary and concepts of modern IT, not whether you can administer a production server. The objectives reflect this scope.
a. Linux Fundamentals (16%)
The Linux Fundamentals domain covers the operating system itself and the command line. It is the foundation for everything else, but it is not the largest domain.
Linux Operating System. The exam tests knowledge of Linux distributions and their package managers. You should know that Ubuntu and Debian use apt and dpkg, that RHEL, CentOS, Rocky, and Fedora use dnf and rpm, that SUSE uses zypper, and that Arch uses pacman .
The Filesystem Hierarchy Standard is tested. You should know the purpose of the major directories: / for the root filesystem, /bin for essential binaries, /etc for configuration files, /home for user directories, /var for variable data like logs, /tmp for temporary files, and /proc for the virtual process filesystem .
Open source licenses are part of this domain. The exam tests the difference between copyleft licenses like GPL and permissive licenses like MIT, Apache 2.0, and BSD .
Command Line. The exam tests basic commands for navigating the filesystem, managing files, and interacting with the system. You should know ls, cd, cp, mv, rm, mkdir, cat, grep, and find. I/O redirection (>, >>, |) is tested. Basic knowledge of text editors like nano and vi is expected .
b. System Administration Fundamentals (30%)
This is the heaviest domain. It covers user management, permissions, processes, services, networking, troubleshooting, and disaster recovery.
System Administration. User and group management commands are tested: useradd, usermod, userdel, passwd, groupadd, id, and whoami . File permissions are tested in both numeric and symbolic notation. You should understand that chmod 755 gives rwxr-xr-x and that chown user:group file changes ownership .
Best Practices. Service management with systemctl is tested: start, stop, restart, enable, disable, and status. Log viewing with journalctl -u service is part of this domain .
Networking. Basic network commands are tested. You should know ip addr, ip route, ping, dig, ss, and curl. The domain covers network configuration at a conceptual level, not deep protocol analysis .
Troubleshooting. The exam tests a methodical approach to troubleshooting. You should know the order of diagnostic steps: check the interface, then the IP, then the gateway, then DNS, then the port, then the service. The commands for each layer are part of this competency .
Disaster Recovery. Backup concepts are tested. You should understand the difference between tar archives and rsync mirrors, and why a restore drill is necessary to verify a backup is usable .
c. Cloud Computing Fundamentals (18%)
The Cloud Computing domain covers service models, deployment models, virtualization, and serverless computing.
Cloud Computing. The four service models are tested: IaaS (Infrastructure as a Service), PaaS (Platform as a Service), SaaS (Software as a Service), and FaaS (Function as a Service). You should know examples of each: EC2 for IaaS, Heroku for PaaS, Gmail for SaaS, and Lambda for FaaS .
The four deployment models are tested: public, private, hybrid, and multi-cloud. You should understand the difference between a public cloud like AWS and a private cloud hosted on-premises .
Virtualization versus containers is a key comparison. Virtual machines run a full guest OS and require a hypervisor. Containers share the host kernel, start in seconds, and have lower overhead. VMs are measured in gigabytes; containers in megabytes .
Performance/Availability. Concepts of scalability, elasticity, and high availability are tested. You should understand the difference between vertical scaling (adding resources to a machine) and horizontal scaling (adding more machines) .
Budgeting. Cloud cost models are tested at a conceptual level: on-demand pricing, reserved instances, and spot instances. The shared responsibility model—what the cloud provider manages versus what the customer manages—is part of this competency .
Serverless computing is covered. You should understand that FaaS runs individual functions without server management, and that the provider handles scaling and infrastructure .
d. Security Fundamentals (14%)
The Security domain covers authentication, encryption, firewalls, and common threats.
Security. The CIA triad—Confidentiality, Integrity, Availability—is foundational. You should understand the difference between authentication (proving identity) and authorization (determining access). Multi-factor authentication and least privilege are tested .
Sensitive Data. Encryption concepts are tested: symmetric encryption (one key), asymmetric encryption (public and private keys), and hashing (one-way transformation). The difference between encryption at rest and encryption in transit is part of this competency .
Compliance. Basic compliance concepts are covered. You should understand that compliance frameworks like GDPR and HIPAA impose requirements on data handling and that audits verify adherence .
Firewall concepts are tested. You should know the difference between ufw, firewalld, and iptables, and understand that a firewall controls traffic based on rules .
Common security threats are covered: phishing, malware, DDoS, and social engineering. The exam tests recognition of these threats, not deep mitigation strategies .
e. DevOps Fundamentals (12%)
The DevOps domain covers CI/CD, Git, containers, and deployment environments.
DevOps Basics. The CI/CD pipeline is tested. You should understand that Continuous Integration means merging and testing frequently, and Continuous Delivery/Deployment means automating the release process. The difference between CI, CD, and CD is part of this competency .
Git Concepts. Basic Git commands are tested: clone, add, commit, push, pull, branch, and merge. The standard workflow—branch, push, review, merge—is covered. You should understand that force pushing to a shared branch is destructive .
Containers. Docker concepts are tested: images, containers, Dockerfiles, and registries. The difference between an image (immutable artifact) and a container (running instance) is part of this domain. Kubernetes basics—pods, services, deployments—are covered at a conceptual level .
f. IT Project Management Fundamentals (10%)
This domain covers project management, software architecture, functional analysis, and open source licensing.
Project Management. The project lifecycle is tested: initiation, planning, execution, monitoring, and closure. Waterfall and Agile methodologies are compared. You should understand that Waterfall is sequential and Agile is iterative. Scrum and Kanban are covered at a conceptual level .
Software Application Architecture. The difference between monolithic and microservices architectures is tested. You should understand that a monolith is a single deployable unit and microservices are independently deployable services .
Functional Analysis. Requirements gathering and functional specifications are covered. You should understand that functional analysis defines what the system should do, not how it should do it .
Open Source Software and Licensing. This competency overlaps with Linux Fundamentals. The exam tests the difference between copyleft and permissive licenses, and the obligations each imposes. GPL requires derivatives to be GPL. MIT and Apache 2.0 allow proprietary use .
Complete Example Session
# ============================================
# PART 1: DOMAIN WEIGHTS
# ============================================
System Administration Fundamentals 30%
Cloud Computing Fundamentals 18%
Linux Fundamentals 16%
Security Fundamentals 14%
DevOps Fundamentals 12%
IT Project Management Fundamentals 10%# ============================================
# PART 2: LINUX FUNDAMENTALS KEY POINTS
# ============================================
Distributions: Ubuntu/Debian (apt), RHEL/Fedora (dnf)
FHS: /etc (config), /var (logs), /home (users)
Licenses: GPL (copyleft), MIT/Apache/BSD (permissive)
Commands: ls, cd, cp, mv, rm, grep, find, cat# ============================================
# PART 3: SYSTEM ADMINISTRATION KEY POINTS
# ============================================
Users: useradd, usermod -aG, userdel -r, passwd
Permissions: chmod 755 (rwxr-xr-x), chown user:group
Services: systemctl start/stop/restart/enable/status
Logs: journalctl -u service
Troubleshooting: interface → IP → gateway → DNS → port
Disaster Recovery: tar archives, rsync mirrors, restore drills# ============================================
# PART 4: CLOUD COMPUTING KEY POINTS
# ============================================
Service models: IaaS, PaaS, SaaS, FaaS
Deployment: public, private, hybrid, multi-cloud
VMs vs Containers: full OS vs shared kernel
Scaling: vertical (bigger) vs horizontal (more)
Serverless: FaaS, no server management# ============================================
# PART 5: SECURITY KEY POINTS
# ============================================
CIA triad: Confidentiality, Integrity, Availability
Auth vs Authz: identity vs access
Encryption: symmetric, asymmetric, hashing
Firewalls: ufw, firewalld, iptables
Threats: phishing, malware, DDoS, social engineering# ============================================
# PART 6: DEVOPS KEY POINTS
# ============================================
CI/CD: continuous integration, continuous delivery/deployment
Git: clone, add, commit, push, pull, branch, merge
Containers: image (artifact) vs container (instance)
Kubernetes: pods, services, deployments# ============================================
# PART 7: IT PROJECT MANAGEMENT KEY POINTS
# ============================================
Methodologies: Waterfall (sequential), Agile (iterative)
Architecture: monolith vs microservices
Functional analysis: what, not how
Licenses: copyleft (GPL) vs permissive (MIT, Apache, BSD)# ============================================
# PART 8: EXAM FORMAT
# ============================================
Questions: 60 multiple-choice
Time: 90 minutes
Passing: 75%
Cost: $250
Validity: 2 years
Retake: 1 included# ============================================
# PART 9: STUDY PRIORITY
# ============================================
1. System Administration (30%) — largest domain
2. Cloud Computing (18%) — second largest
3. Linux Fundamentals (16%) — foundation
4. Security (14%) — concepts, not tools
5. DevOps (12%) — vocabulary and concepts
6. IT Project Management (10%) — non-technical# ============================================
# PART 10: EXAM DAY STRATEGY
# ============================================
- Read each question completely
- Eliminate obviously wrong answers first
- Flag uncertain questions and return
- 90 minutes for 60 questions = 1.5 min/question
- 75% = 45 correct out of 60The ten parts covered domain weights, Linux Fundamentals, System Administration, Cloud Computing, Security, DevOps, IT Project Management, exam format, study priority, and exam day strategy.
Quick Reference
Exam Domains and Weights
| Domain | Weight | Questions (approx) |
|---|---|---|
| System Administration Fundamentals | 30% | 18 |
| Cloud Computing Fundamentals | 18% | 11 |
| Linux Fundamentals | 16% | 10 |
| Security Fundamentals | 14% | 8 |
| DevOps Fundamentals | 12% | 7 |
| IT Project Management Fundamentals | 10% | 6 |
Key Commands by Domain
| Domain | Commands |
|---|---|
| Linux Fundamentals | ls, cd, cp, mv, rm, grep, find |
| System Administration | useradd, chmod, chown, systemctl, journalctl |
| Networking | ip addr, ip route, ping, dig, ss, curl |
| Troubleshooting | ip link, ip addr, ping, traceroute, nc |
| Cloud | (conceptual) IaaS, PaaS, SaaS, FaaS |
| Security | (conceptual) CIA triad, auth, encryption |
| DevOps | git clone, git commit, git push, docker run |
Service Models
| Model | Description | Example |
|---|---|---|
| IaaS | Infrastructure as a Service | EC2, Azure VMs |
| PaaS | Platform as a Service | Heroku, App Engine |
| SaaS | Software as a Service | Gmail, Salesforce |
| FaaS | Function as a Service | Lambda, Cloud Functions |
File Permissions
| Numeric | Symbolic | Meaning |
|---|---|---|
| 755 | rwxr-xr-x | Full owner, read/execute others |
| 644 | rw-r–r– | Read/write owner, read others |
| 700 | rwx—— | Full owner only |
| 600 | rw——- | Read/write owner only |
Best Practices
✅ Do This:
# Match study time to exam weights
Spend most time on System Administration (30%) # ✅
# Practice commands in a real shell
ls, cd, chmod, systemctl, ip addr, git commit # ✅
# Understand concepts, not just definitions
IaaS vs PaaS vs SaaS, VMs vs containers # ✅
# Review the updated objectives
Exam updated September 2025 # ✅
# Take timed practice tests
60 questions, 90 minutes, target 75%+ # ✅❌ Don’t Do This:
# Don't over-study Linux Fundamentals
It's only 16% of the exam # ❌
# Don't memorize commands without context
Know why you use chmod 755, not just the number # ❌
# Don't ignore non-technical domains
Project Management is 10% # ❌
# Don't rely on outdated study materials
Check the September 2025 update # ❌
# Don't skip practice tests
The exam is timed # ❌Common Pitfalls
| Pitfall | Why It Happens | Fix |
|---|---|---|
| Over-studying Linux | Familiar topic feels important | Check the weights |
| Ignoring Project Management | Feels non-technical | It is 10% of the exam |
| Memorizing without understanding | Commands are easy to recall | Focus on concepts |
| Using outdated materials | Exam updated Sept 2025 | Check current objectives |
| Poor time management | 90 minutes for 60 questions | Practice timed sets |
| Confusing CI and CD | Overlapping terminology | CI = integrate, CD = deliver/deploy |
Real-World Examples
1. Command Line Navigation
cd /etc && ls -la2. File Permissions
chmod 755 script.sh
chown user:group file.txt3. Service Management
systemctl status nginx
journalctl -u nginx -n 204. Network Diagnostics
ip addr show && ip route show
ping -c 3 8.8.8.8 && dig example.com5. User Management
useradd -m jsmith && passwd jsmith
usermod -aG developers jsmith6. Container Basics
docker pull nginx:alpine
docker run -d --name web -p 8080:80 nginx:alpine7. Git Workflow
git clone url && git checkout -b feature
git add . && git commit -m "message" && git push8. Cloud Service Model
IaaS: you manage OS and up
PaaS: you manage app only
SaaS: you manage nothing9. Security Concept
CIA: Confidentiality, Integrity, Availability
Auth vs Authz: identity vs access10. Project Management
Waterfall: sequential phases
Agile: iterative sprintsVisual
Domain Weight Distribution
┌─────────────────────────────────────────────────────────────┐
│ LFCA DOMAIN WEIGHTS │
│ │
│ System Administration ████████████████████████████ 30% │
│ Cloud Computing ██████████████ 18% │
│ Linux Fundamentals ████████████ 16% │
│ Security ██████████ 14% │
│ DevOps █████████ 12% │
│ Project Management ███████ 10% │
│ │
│ Total: 100% (60 questions) │
│ Passing: 75% (45 correct) │
│ │
└─────────────────────────────────────────────────────────────┘Study Priority Order
┌─────────────────────────────────────────────────────────────┐
│ STUDY PRIORITY │
│ │
│ 1. System Administration (30%) │
│ ├── Users, groups, permissions │
│ ├── Services, logs, processes │
│ ├── Networking, troubleshooting │
│ └── Disaster recovery, backup │
│ │
│ 2. Cloud Computing (18%) │
│ ├── IaaS, PaaS, SaaS, FaaS │
│ ├── Deployment models │
│ └── Virtualization vs containers │
│ │
│ 3. Linux Fundamentals (16%) │
│ ├── Distributions, package managers │
│ ├── FHS, commands │
│ └── Open source licenses │
│ │
│ 4. Security (14%) │
│ ├── CIA triad, auth │
│ ├── Encryption, firewalls │
│ └── Threats │
│ │
│ 5. DevOps (12%) │
│ ├── CI/CD │
│ ├── Git │
│ └── Containers │
│ │
│ 6. Project Management (10%) │
│ ├── Methodologies │
│ └── Architecture │
│ │
└─────────────────────────────────────────────────────────────┘Exam Logistics
┌─────────────────────────────────────────────────────────────┐
│ LFCA EXAM LOGISTICS │
│ │
│ Questions: 60 multiple-choice │
│ Time: 90 minutes │
│ Pace: ~1.5 minutes per question │
│ Passing: 75% (45 correct) │
│ Cost: $250 USD │
│ Retake: 1 included │
│ Validity: 2 years │
│ Prereq: None │
│ Format: Online proctored │
│ │
└─────────────────────────────────────────────────────────────┘Summary
| Item | Value |
|---|---|
| Largest domain | System Administration Fundamentals (30%) |
| Second largest | Cloud Computing Fundamentals (18%) |
| Linux Fundamentals | 16% |
| Security Fundamentals | 14% |
| DevOps Fundamentals | 12% |
| IT Project Management | 10% |
| Exam length | 60 questions, 90 minutes |
| Passing score | 75% |
| Certification validity | 2 years |
| Exam update | September 16, 2025 |
Key takeaways:
- System Administration Fundamentals is the heaviest domain at 30%. It covers users, permissions, services, logs, networking, troubleshooting, and disaster recovery. It deserves the largest share of study time.
- Linux Fundamentals is only 16%. It is the foundation, but it is not the largest domain. Over-studying it at the expense of other domains is a common mistake.
- Cloud Computing is 18% and covers service models. You should know the difference between IaaS, PaaS, SaaS, and FaaS, and between virtual machines and containers.
- Security is 14% and covers concepts, not tools. The CIA triad, authentication versus authorization, encryption types, and common threats are tested at a conceptual level.
- DevOps is 12% and covers CI/CD, Git, and containers. The vocabulary and basic workflow are tested, not deep tool expertise.
- IT Project Management is 10% and is non-technical. Waterfall versus Agile, monolith versus microservices, and functional analysis are covered.
- The exam was updated in September 2025. The domains are unchanged, but some competencies were adjusted. Check the current objectives if you are using older study materials.
- The exam is 60 questions in 90 minutes with a 75% passing score. Practice timed sets to develop the pace. Target consistently above 75% on practice tests before scheduling.
Remember: The LFCA is an entry-level certification that validates broad IT fluency. It is not a deep technical exam. The objectives review tells you what each domain covers and how much it weighs. System Administration is the largest domain, followed by Cloud Computing. Linux Fundamentals is the foundation but not the heaviest topic. Study the weights, practice the commands, understand the concepts, and the exam will test knowledge you have built through the chapters in this series.
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