CompTIA Linux+ Study Guide 2026: Syllabus, Exam Topics & Study Plan -Edureify
📋 2026 Edition  ·  Updated September 2026

CompTIA Linux+ Study Guide 2026

Complete exam coverage for the CompTIA Linux+: syllabus, domains, key topics, study plan and practical exam preparation strategy.

90
Questions
90 min
Duration
720
Passing score
5
Domains
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System Management
-
Services and User Management
-
Security
-
Automation, Orchestration, and Scripting
-
Troubleshooting
-
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Exam at a Glance

CompTIA Linux+ Exam Overview

Key facts about the CompTIA Linux+ exam structure, format and scoring.

🆔
comptia-linux-plus
Exam code
📝
90 questions
Total questions
⏱
90 minutes
Duration
🎯
720
Passing score
📋
5 domains
Exam domains
🏆
Certification
Credential type
ℹ️
Scoring method: Scaled scoring on a 100–900 scale. Passing score is 720. Performance-based questions are weighted more heavily than standard MCQs and increased in emphasis relative to XK0-005. No negative marking.. The exam may include unscored pilot questions - treat every question seriously.
Focus Areas

What should you study for the CompTIA Linux+ exam?

Start with the domains that make up the CompTIA Linux+ exam. Use the detailed syllabus below to work through the individual topics.

⚠️
Common mistake: Candidates often memorise terminology but struggle with scenario-based questions. Focus on when to use what, not just what exists.
🔐
System Management (23%)
Narrower than in the retired XK0-005 (was 32%) — user/service management was split out into its own domain. Covers boot process, storage, networking, and virtualization.
🏗
Services and User Management (20%)
New standalone domain in XK0-006 — was folded into System Management under XK0-005. Covers permissions, users/groups, processes, package management, and system services.
⚡
Security (18%)
Slightly narrower than XK0-005's 21% — covers authentication, access control, and hardening.
💰
Automation, Orchestration, and Scripting (17%)
Renamed and refocused from XK0-005's 'Scripting, Containers, and Automation' (19%) — container coverage moved to Services and User Management; this domain now emphasizes Python, Git, CI/CD, IaC, and AI-assisted development practices.
🔄
Troubleshooting (22%)
Slightly narrower than XK0-005's 28% — covers systematic diagnosis across hardware, storage, network, and application/security issues.
Full Syllabus

CompTIA Linux+ Exam Syllabus and Topics

The CompTIA Linux+ exam is divided into 5 domains. Each domain covers specific skills and topics. Expand a domain to see the detailed syllabus.

System Configuration
Boot process and GRUB
Kernel management and modules
Hardware and device management
Localization and time zone settings
Storage Management
Partition management (MBR, GPT)
LVM (Logical Volume Management)
Filesystem creation and mounting (ext4, XFS, Btrfs)
RAID configurations
Backup and restore operations
Networking
Network configuration (IP, DNS, DHCP)
NetworkManager and nmcli
SSH configuration and tunneling
Network diagnostics
Virtualization
Virtualization concepts on Linux (KVM, QEMU)
VM lifecycle basics
Cloud instance fundamentals
~21 questions
23 marks
23% of exam weight
User and Group Management
Creating and managing users and groups
File permissions (chmod, chown)
Process management and signals
Job control
Package and Service Management
APT and dpkg (Debian-based)
YUM, DNF, and RPM (RHEL-based)
Managing services with systemd
Scheduling tasks (cron, at, anacron, systemd timers)
Repository management
Container fundamentals (basic image/container concepts)
~18 questions
20 marks
20% of exam weight
Authentication and Access Control
PAM (Pluggable Authentication Modules)
Sudo and privilege escalation
ACLs (Access Control Lists)
SELinux (modes, contexts, policies)
AppArmor profiles
Data and Network Security
Encryption (GPG, OpenSSL)
PKI and certificate management
SSH hardening
Auditing with auditd
Vulnerability scanning and patch management basics
~16 questions
18 marks
18% of exam weight
Shell and Python Scripting
Bash scripting syntax, variables, loops, conditionals
Regular expressions and text processing (grep, awk, sed)
Basic Python scripting for automation (new emphasis in XK0-006)
Script debugging
Version Control and CI/CD
Git fundamentals: branching, merging, remotes
CI/CD pipeline concepts (expanded in XK0-006)
Configuration management with Ansible/Puppet
Infrastructure as Code concepts
AI-Assisted Development (New in XK0-006)
AI-assisted code generation best practices
Prompt engineering fundamentals for scripting tasks
Risks and limitations of AI-generated code
~15 questions
17 marks
17% of exam weight
Troubleshooting Methodology
Systematic troubleshooting approach
Log analysis (journalctl, /var/log)
Performance monitoring tools (top, htop, vmstat, iostat)
System and Network Troubleshooting
Boot failures and rescue mode
Storage and filesystem failures
Connectivity diagnosis (ping, traceroute, netstat, ss)
DNS and firewall rule issues
Application and Security Troubleshooting
Service failure diagnosis
SELinux/AppArmor denials
Permission and ownership issues
Container troubleshooting basics
~20 questions
22 marks
22% of exam weight
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Study Plan

CompTIA Linux+ Structured Study Roadmap

Choose a preparation timeline based on how much time you have available. For a plan based on your actual readiness and weak domains, use the personalised Edureify study experience. Get My Training Plan →

Weeks 1-2
Core Services + Highest-Weighted Domain
Deep-dive into the most heavily tested domain. Spend more time here when its exam weight is significantly higher.
Official exam guideDomain 1 completeCore conceptsPractice questions
Week 3
Domain 2 - Hands-on Practice
Focus on scenario-based study and reinforce concepts through practical application where applicable.
Domain 2Scenario walkthroughsHands-on practicePractice questions
Week 4
Domain 3 - Deeper Concepts
Work through complex concepts and decision scenarios.
Domain 3Scenario drillsPractice examReview
Week 5
Remaining Domains + Weak Area Targeting
Identify your weaker domains and spend focused time closing those gaps.
Remaining domainsDiagnosticTargeted reviewStudy notes
Week 6
Full Simulations + Final Preparation
Use timed simulations to test your preparation and review the reasoning behind incorrect answers.
Full mock examsWrong-answer reviewFinal reviewExam logistics
Exam Strategy

Tips to pass CompTIA Linux+ on your first attempt

Practical advice for applying what you know, managing questions and preparing for exam conditions.

🗓
XK0-005 retired January 13, 2026 — if your study material still shows 4 domains with System Management at 32%, it's for the retired exam. XK0-006 has 5 domains.
🔍
System Management (23%) and Troubleshooting (22%) together are still nearly half the exam, but System Management is now narrower — Services and User Management (20%) was split out as its own domain.
⏭
Build a hands-on Linux lab using VirtualBox or a cloud VM — Linux+ heavily tests practical skills via performance-based questions, and PBQ weight increased in XK0-006.
📊
Basic Python scripting is newly emphasized alongside Bash — don't assume shell scripting alone covers the Automation domain.
🔁
AI-assisted development (code generation best practices, prompt engineering) is brand-new content in XK0-006 — not covered on the old XK0-005.
🧪
Practice the complete boot process: BIOS/UEFI → GRUB → kernel → initrd → systemd.
📝
Master LVM commands: pvcreate, vgcreate, lvcreate, lvextend, and resizing filesystems.
🎯
Learn SELinux contexts and common troubleshooting: use getenforce, setenforce, restorecon, and audit2allow.
🗓
Understand both APT/dpkg (Debian/Ubuntu) and YUM/DNF/RPM (RHEL/CentOS) package management — now grouped under Services and User Management.
🔍
Use CompTIA's official CertMaster Learn or Practice tools, and simulate PBQs in a live Linux environment.
Recommended Resources

CompTIA Linux+ Study Resources

Use a focused set of resources alongside the study guide rather than trying to study from everything available.

Official
Official Exam Guide
Start with the authoritative exam objectives and blueprint.
→ Vendor website
Practice Tests
CompTIA Linux+ Practice Test
Practice questions with explanations and domain-level performance analysis.
→ Start free practice test
Mock Exam
CompTIA Linux+ Mock Exam
Timed preparation under realistic exam-style conditions.
→ Take free mock exam
Training
CompTIA Linux+ Certification Training
Structured preparation with personalised learning support and adaptive practice.
→ CompTIA Linux+ certification online training
AI Tutor
CompTIA Linux+ AI Tutor
Get help understanding concepts and work on weak areas with AI-powered learning support.
→ Try CompTIA Linux+ AI tutor
Reference
CompTIA Linux+ Cheat Sheet
Quick-reference summaries for final revision.
→ Get free cheat sheet
Diagnostic
CompTIA Linux+ Readiness Test
Assess your preparation and identify weaker exam domains.
→ Check my readiness
⚠️
Avoid brain dumps. Sites selling real or stolen exam questions may violate certification-provider rules and can leave candidates studying outdated material.
Reviews

What candidates say after passing

★★★★★
Systemctl enable vs. start is the service management distinction the Linux+ exam tests most consistently.Edureify AI's boot persistence scenarios - start for this session vs. enable for every future boot - built the correct command selection as an automatic reflex rather than a remembered fact.
Tyler N.
Platform Engineer
★★★★★
SELinux enforcement modes are tested in troubleshooting scenarios where the correct short-term action is Permissive mode and the correct long-term action is fixing the policy.Edureify AI's SELinux troubleshooting scenarios built both the diagnostic step (switch to Permissive) and the remediation step (fix the context and restore Enforcing).
Pierre D.
Data Engineer
★★★★★
File permission numeric notation must be bidirectional - reading octal to permissions and permissions to octal.Edureify AI's permission scenarios required both conversions under time pressure, building the fluency that the exam assumes rather than testing as a lookup exercise.
Karthik R.
Cloud Lead
★★★★★
Cron job debugging requires checking multiple layers - cron syntax, cron daemon status, execution logs, and user permissions - before concluding anything.Edureify AI's cron troubleshooting scenarios required me to work through all four before reaching a conclusion, which is exactly the systematic approach the exam rewards.
Sofia R.
Scrum Master
FAQ

Frequently asked questions about CompTIA Linux+

Most candidates with relevant background can structure their preparation over several weeks, depending on their existing knowledge, available study time and exam difficulty. Use the study roadmap above as a starting point and use the readiness diagnostic to identify where you need more preparation.
The guide covers the exam overview, domains, detailed syllabus and topics, study roadmap, exam preparation tips and links to practice, mock, readiness, cheat-sheet, AI Tutor and training resources.
The guide is designed to organize your preparation around the exam syllabus. You should combine it with practice questions and timed simulations so that you can test both your knowledge and your ability to apply it.
Yes. Start with the exam overview and domain breakdown, then work through the detailed topics using the study roadmap. Candidates with less experience may need additional time for foundational concepts.
Take the Edureify readiness diagnostic to assess your preparation and identify the domains where you need to focus more.
Edureify AI can help explain concepts, identify weaker areas from practice performance and support a more personalised preparation process.

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