The XK0-004 exam, officially titled CompTIA Linux+ Certification Exam, is the CompTIA exam you pass to earn the CompTIA Linux+ certification, a credential at the Professional level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as CompTIA A+, CompTIA Network+, CompTIA Server+.

The XK0-004 exam includes Up to 90 questions and gives you 90 minutes to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the Fast2test desktop or online test engine is the most reliable way to build that rhythm before exam day.

The passing score for the XK0-004 exam is 720 (scale 100-900), and the official registration fee is USD 329 - 358. Keep in mind that a failed attempt means paying USD 329 - 358 again in full to retake it, so book your slot only when your scores on Fast2test practice tests sit consistently above the passing line.

CompTIA lists the following prerequisites or eligibility notes for the XK0-004 exam: No mandatory prerequisites; recommended: 9–12 months of hands-on Linux administration experience, CompTIA A+ and/or Network+ knowledge. Requirements can change over time, so confirm the details on the official exam page at CompTIA's official site before you register.

You can register for the XK0-004 exam through the official channels below:

• CompTIA Official Site
• Pearson VUE Registration

The exam is delivered in the following format: In-person at Pearson VUE test centers or online proctored. Choose a date that leaves you enough time to work through the full 485-question practice set first.

CompTIA recommends the following training resources for XK0-004 candidates:

• Official CompTIA Study Guide
• CompTIA CertMaster

Official courses build the theory, and the 485 practice questions from Fast2test help you turn that theory into exam-ready speed and accuracy.

Yes. Fast2test offers a free PDF demo of the XK0-004 material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.

Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding XK0-004 exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.

Delivery is instant: your download links are emailed within one minute of payment, and you can also download directly from the website. If nothing arrives within 2 hours, contact customer service and check your spam folder. There is no limit on how many computers you can install the material on.

The XK0-004 exam blueprint is divided into 5 domains, starting with Automation and Scripting (14%); Linux Troubleshooting and Diagnostics (20%); Hardware and System Configuration (21%). For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.