CompTIA certification practice
Practise CompTIA Linux+ (XK0-006) XK0-006 across all 5 official exam domains — Services and User Management, Security, Troubleshooting, Automation, Orchestration, and Scripting, and more — with original exam-style questions, full explanations, and wrong-answer analysis. CompTIA exams reward broad practical understanding. Courseiva helps you practise IT support, networking, security and troubleshooting concepts with realistic questions and clear answer explanations.
Ways to study XK0-006
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
New here? Start with this
Start with a 25-question practice test
Covers all 5 domains · takes ~5 min · no account needed · shows your weak areas immediately
Key facts for the CompTIA Linux+ (XK0-006) exam.
Exam cost
$399 USD / ~£315
Duration
90 minutes
Question count
Maximum 90 questions
Passing score
720 / 900
Validity
3 years
Delivered by
Pearson VUE
Online proctored
Yes — available
Retake policy
No waiting period for first retake; 14 days between subsequent attempts
Question formats
CompTIA Linux+ (XK0-006) is a vendor-neutral certification that validates the skills required to configure, manage, operate, and troubleshoot Linux systems. It covers system management, services and user management, security, automation and scripting, and troubleshooting. It is the only performance-based Linux certification that covers all major distributions and is vendor-neutral. Linux+ is recognised by the US Department of Defense under DoD 8570/8140 and is valued by employers who need Linux expertise across diverse environments.
Official prerequisite
None — no formal prerequisites
Recommended experience
CompTIA A+ and Network+ knowledge or equivalent; 12 months of Linux administration experience
IT professionals with at least 12 months of Linux administration experience who want a vendor-neutral certification
Should you skip this exam?
If you need a distro-specific credential for enterprise roles, consider Red Hat RHCSA (RHEL) or LPI LPIC-1; both are more widely recognised in Linux-specific hiring
Courseiva study tip
Hands-on practice is essential — build a home lab with Ubuntu or CentOS, practise scripting in bash, and work with containers (Docker) and systemd regularly
UK salary range
£35,000–£55,000
US salary range
$65,000–$95,000
Job roles that cite XK0-006
What certification to take next
The XK0-006 exam is about $399 USD at full price per attempt. Authorised training partners often discount it to roughly $340-$370.
You need a scaled score of 720 out of 900 to pass the CompTIA Linux+ XK0-006 exam.
Up to 90 questions in 90 minutes, including multiple-choice, multiple-response, and performance-based questions.
Linux+ tests system management, services and user management, security, automation and scripting, and troubleshooting. XK0-006 weights automation, orchestration and scripting as a domain in its own right.
RHCSA is a fully hands-on, command-line-only exam focused entirely on Red Hat Linux, which many find harder in practice. Linux+ includes performance-based questions but also multiple-choice items, making it more accessible for candidates building towards Red Hat.
Linux+ is valid for 3 years and can be renewed through CompTIA's CE programme by earning 30 CEUs or passing a qualifying higher-level exam.
CompTIA Linux+ is distribution-neutral and covers concepts applicable across major distributions including Ubuntu, Red Hat/CentOS, and SUSE.
See how XK0-006 stacks up against related certifications.
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Courseiva Exam Intelligence
Data confidence: BuildingDerived from Courseiva's continuously updated practice dataset: 979 exam-style questions. Updated 2 July 2026.
Question difficulty mix
Average time per question: 93s
4
Exam domains
official blueprint domains covered by the bank
979
Questions
exam-style questions in the XK0-006 bank
Practice modes
Choose a mode that matches your current study phase. Use topic practice early on and mock exams closer to your exam date.
All XK0-006 Questions
Browse the full question bank organised by domain and difficulty.
Practice Test
Start a 20-question session with a full explanation after each answer.
Mock Exam
Simulate the real exam with a timed, full-length question set.
Quick 25
A 25-question warm-up — ideal for a short daily study session.
Flashcards
Reinforce key terms, commands, and protocol facts with flashcards.
Domain Practice
Focus exclusively on one exam domain to target your weakest area.
50-Question Set
Mid-length practice set covering all domains.
Exam guide
Start with a short practice session, review each missed answer, then return to the topics that caused mistakes.
CompTIA Linux+ (XK0-006) XK0-006 spans 5 official exam domains (Services and User Management, Security, Troubleshooting, and more). Questions test whether you can apply each objective in a realistic scenario, not just recall a definition.
Related practice questions
Use these internal links to move from the exam guide into focused topic practice pages.
Practise XK0-006 questions linked to Services and User Management.
Practise XK0-006 questions linked to Security.
Practise XK0-006 questions linked to Troubleshooting.
Practise XK0-006 questions linked to Automation, Orchestration, and Scripting.
Practise XK0-006 questions linked to System Management.
Practise XK0-006 questions linked to XK0-006 fundamentals.
Practise XK0-006 questions linked to XK0-006 scenario.
Practise XK0-006 questions linked to XK0-006 troubleshooting.
Practice directory
Every practice set is a unique selection of questions — numbered tests, domain-focused sessions, and topic-specific quizzes.
Showing 8 of 63 tests. See all 63 XK0-006 practice tests →
Official blueprint
Target weak areas by practising questions from a single domain. Each domain page shows all questions, difficulty breakdown, and a focused practice session.
Practise XK0-006 questions in this domain →
Practise XK0-006 questions in this domain →
Practise XK0-006 questions in this domain →
Practise XK0-006 questions in this domain →
Practise XK0-006 questions in this domain →
Deep-dive questions
The most-searched XK0-006 questions — each with a detailed explanation, worked example, and full answer breakdown.
Term reference
These terms appear frequently in XK0-006 questions. Understanding them precisely reduces guessing and improves scores.
Bash script
A Bash script is a text file containing a sequence of commands for the Unix shell Bash, allowing users to automate repetitive tasks and streamline system administration on Linux and macOS.
Persistent Disk
Persistent Disk is a durable, high-performance block storage service for Google Cloud virtual machines that retains data even after the VM is shut down or deleted.
ext4
ext4 is the default file system for many Linux distributions, designed to store and manage files on a hard drive or SSD with journaling, large volume support, and backward compatibility.
SharePoint admin center
The SharePoint admin center is the web-based control panel where IT administrators manage SharePoint Online settings, site collections, user permissions, and storage across an organization's Microsoft 365 environment.
Assigned license
An assigned license is a software or service license that has been specifically allocated to a particular user or device, granting that entity the right to use the licensed product.
Repository
A repository is a central storage location where software packages, code, or configuration files are kept, managed, and distributed for use by IT systems.
ITSM
ITSM (Information Technology Service Management) is a set of practices for designing, delivering, managing, and improving IT services to meet business needs.
Outside global
An Outside global address is the publicly routable IP address assigned to a device on the external network (usually the internet) as seen from the perspective of a network device performing Network Address Translation (NAT).
Learn the concepts
16 book-style chapters cover every XK0-006 objective in plain English. Read the theory here, then test it with practice questions.
Chapter 1
Linux Fundamentals and History
12 min read
Chapter 2
Installing Linux and Package Management
12 min read
Chapter 3
Navigating the Filesystem
12 min read
Chapter 4
File Permissions and Ownership
12 min read
Chapter 5
User and Group Administration
12 min read
Chapter 6
Process Management and System Monitoring
12 min read
Chapter 7
System Services and Startup
12 min read
Chapter 8
Basic Shell Scripting
12 min read
Free study guide
The Courseiva XK0-006 study guide covers exam format, the official domain blueprint with weights, a structured study plan, and domain-specific tips for each section. Use it alongside practice questions to build both conceptual depth and exam confidence.
Sample questions
Original exam-style questions — not copied from any exam or dump site. Open a question for the full answer breakdown.
A system administrator needs to configure a cron job to run a script every Monday at 3:00 AM. Which two cron expressions are correct? (Select TWO).
A security analyst is investigating a potential breach and needs to examine user login history. Which THREE commands or log files provide information about user logins? (Select THR…
An administrator needs to replace all occurrences of 'oldhost' with 'newhost' in the configuration file /etc/hosts. Which command will perform the replacement and save the changes…
A Linux system fails to boot and displays a kernel panic immediately after the GRUB menu. The administrator needs to boot into a rescue environment. Which GRUB boot parameter shoul…
A user cannot start the Apache web service. The command 'systemctl start httpd' returns 'Failed to start httpd.service: Unit not found.' What is the most likely cause?
A security policy requires that SSH access be allowed only from the internal management subnet 10.10.10.0/24. Which firewalld rich rule should be added?
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Official booking and top-rated study resources for the XK0-006.
Courseiva provides free CompTIA Linux+ (XK0-006) (XK0-006) practice questions with original exam-style questions, detailed explanations, topic-based practice, mock exams, readiness tracking, and study analytics. Courseiva is an independent platform and is not affiliated with CompTIA.