PDF Version DemoNot sure a study set is what you need? Download the free XK0-005 demo from Getcertkey and review a sample of the CompTIA Linux+ Certification practice questions before you spend anything — the 2026 edition is ready to try today.
CompTIA XK0-005 Exam Overview:
| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Linux+ Certification Exam |
| Exam Number: | XK0-005 |
| Real Exam Qty: | Up to 90 |
| Passing Score: | 720 (scale 100–900) |
| Related Certifications: | CompTIA Server+ CompTIA Network+ CompTIA A+ |
| Exam Format: | Multiple-choice, Performance-based |
| Certificate Validity Period: | 3 years |
| Exam Price: | $348 USD |
| Exam Duration: | 90 minutes |
| Available Languages: | English, Spanish, Portuguese, Japanese |
| Recommended Training: | CompTIA Official Training |
| Exam Registration: | Pearson VUE Registration CompTIA Official Registration |
| Sample Questions: |  |
| Exam Way: | Online proctored or onsite at Pearson VUE test centers |
| Pre Condition: | No mandatory prerequisites; recommended 12+ months of hands-on Linux administration experience; CompTIA A+, Network+, Server+ are suggested |
| Official Syllabus URL: | https://www.comptia.org/certifications/linux |
CompTIA XK0-005 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Scripting, Containers and Automation | 15% | - Container management (Docker, Kubernetes basics) - Infrastructure as Code and automation tools - Version control basics - Scheduling tasks (cron, at, systemd timers) - Bash shell scripting |
| Topic 2: Linux System Management | 27% | - File and directory permissions - Network configuration and troubleshooting - Service and process management - User and group administration - Storage configuration and management - Package management (RPM, DEB, repositories) |
| Topic 3: Troubleshooting and Diagnostics | 22% | - Storage and filesystem errors - Performance monitoring and optimization - System and application log analysis - Network connectivity problems - System recovery and rescue modes - Boot and startup issues |
| Topic 4: Security | 21% | - File and filesystem encryption - SELinux and AppArmor - Access control and authentication - Secure remote access (SSH, key management) - Audit and logging - Firewall configuration (firewalld, iptables, nftables) |
| Topic 5: System Architecture | 15% | - Systemd configuration and management - Boot processes and runlevels - Hardware components and peripheral management - Kernel modules and parameters |
XK0-005 Exam FAQs for 2026 Candidates
Which certification does the XK0-005 exam lead to?
The XK0-005 exam is the official CompTIA exam behind the CompTIA Linux+ certification, validating the skills measured by the CompTIA Linux+ Certification credential. It sits at the Professional level of the CompTIA certification program. It also connects to CompTIA A+, CompTIA Network+, CompTIA Server+, so the knowledge you build here carries over to those tracks as well.
How many questions are on the XK0-005 exam, and how much time do I get?
The XK0-005 exam contains Up to 90 questions to be completed within 90 minutes. Before exam day, divide the available time by the question count to work out a comfortable per-question pace, and mark any item that eats into it so you can return later instead of getting stuck. Timed sessions in the Getcertkey test engines make that pacing automatic — run at least two full-length mock exams under the clock so time pressure never becomes the reason you drop points.
What score do I need to pass the XK0-005 exam, and what does it cost?
The passing score for the XK0-005 exam is 720 (scale 100–900), and the official registration fee is $348 USD. Retakes are not discounted — every new attempt means paying the full fee again — so it pays to measure yourself before you book. Work through the 895 practice questions on Getcertkey, sit a timed practice test, and schedule your exam only when your scores are consistently comfortable. That simple habit is the cheapest exam strategy there is.
Are there any prerequisites for the XK0-005 exam?
No mandatory prerequisites; recommended 12+ months of hands-on Linux administration experience; CompTIA A+, Network+, Server+ are suggested Requirements can change when CompTIA revises its certification program, so confirm the current eligibility rules on the official exam page before you register.
How do I register for the XK0-005 exam?
You can book the CompTIA Linux+ Certification exam through the official registration channels below:
As for delivery, the exam is offered in the following format: Online proctored or onsite at Pearson VUE test centers. Choose the option that suits you best when you book your seat.
What official training is recommended for the XK0-005 exam?
CompTIA recommends the following training resources for the CompTIA Linux+ Certification exam:
Official courses build the foundation; the 895 practice questions from Getcertkey then show you how that knowledge is examined, so the two work best together.
Can I try the XK0-005 practice questions before I buy?
Yes. Getcertkey provides a free XK0-005 PDF demo so you can review the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates — if CompTIA revises the exam during that period, the updated material reaches you at no cost. Once the free-update year ends, you can extend your update service at a 50% discount.
What if I fail the XK0-005 exam, and how is my order delivered?
Every CompTIA Linux+ Certification purchase on Getcertkey is covered by a 100% money-back guarantee with clear conditions: if you take the corresponding exam within 60 days of your purchase and do not pass, you can claim a full refund by submitting a scanned copy of your exam enrollment slip and your official score report as a PDF within two days of the exam date; claims are processed within seven days of submission. The guarantee does not apply to exams taken within three days of purchase, to material that was downloaded but never used in an exam attempt, or to free products and expired orders, and the candidate name must match the payer name. If you would rather not take a refund, you can instead exchange your purchase for two free exam preparation products of equal value and keep the update service on your original product.
Delivery is instant: your download is sent to your email within one minute of payment, with no limit on how many computers you may install the material on. If nothing arrives within two hours, check your spam folder and contact customer service for help.
What topics are covered in the XK0-005 exam?
The CompTIA Linux+ Certification exam blueprint is organized into 5 domains. The first three are:
- Linux System Management — 27% of the exam
- Troubleshooting and Diagnostics — 22% of the exam
- System Architecture — 15% of the exam
For the complete domain-by-domain breakdown, scroll up to the full exam topics outline above and use it to plan how you distribute your study time.
CompTIA Linux+ Certification Sample Questions:
Question 1
The security team has identified a web service that is running with elevated privileges.
A Linux administrator is working to change the systemd service file to meet security compliance standards.
Given the following output:
Which of the following remediation steps will prevent the web service from running as a privileged user?
A. Adding the User-webservice to the [Service] section of the service file
B. Removing the ExecStarWusr/sbin/webserver -D SOPTIONS from the service file
C. Updating the Environment File line in the [Service] section to/home/webservice/config
D. Changing the:nulti-user.target in the [Install] section to basic.target
Question 2
A systems administrator is tasked with preventing logins from accounts other than root, while the file /etc/nologin exists. Which of the following PAM modules will accomplish this task?
A. pam_nologin.so
B. pam_access.so
C. pam_login.so
D. pam_logindef.so
Question 3
A Linux administrator is implementing a stateful firewall on the Linux server. Which of the following iptables options will be required to build the stateful rules? (Choose two.)
A. --state
B. -m conntrack
C. -j DROP
D. -m recent
E. --name established
F. --remove
Question 4
A Linux administrator is configuring Apache on a system and needs to allow the service to start after every startup. Which of the following commands will allow the Linux administrator to accomplish this task while starting the service at the same time?
A. systemctl set-property restart httpd
B. systemctl start --runtime boot httpd
C. systemctl enable --now httpd
D. systemctl mask --state=active httpd
Question 5
The development team wants to prevent a file from being modified by all users in a Linux system, including the root account. Which of the following commands can be used to accomplish this objective?
A. chattr +i /app/conf/file
B. chmod / app/conf/file
C. chmod 0000 /app/conf/file
D. setenforce / app/ conf/ file
Solutions:
| Question 1 Answer: B | Question 2 Answer: A | Question 3 Answer: A,B | Question 4 Answer: C | Question 5 Answer: A |
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