The XK0-004 exam, officially titled CompTIA Linux+ Certification Exam, is the qualifying test for the CompTIA Linux+ certification from CompTIA, a credential at the Professional level. Passing it proves you have the skills employers look for in certified professionals, and it can also support progress toward related credentials such as CompTIA A+, CompTIA Network+, CompTIA Server+.

The CompTIA Linux+ Certification exam gives you 90 minutes to work through Up to 90 questions. That is a steady pace with little room for second-guessing, so train yourself to read each question once, flag the difficult ones, and keep moving. Before exam day, sit at least two full timed sessions in the Prep4away test engine — when the clock feels familiar, it stops being a threat.

You need 720 (scale 100-900) to pass, and the official registration fee is USD 329 - 358. Fall short and you pay that fee in full again for every retake, which makes solid preparation the cheaper option by far. Work through the Prep4away practice questions until you score comfortably above the passing mark, then book your seat.

No mandatory prerequisites; recommended: 9–12 months of hands-on Linux administration experience, CompTIA A+ and/or Network+ knowledge Eligibility rules can change over time, so before you register, confirm the latest requirements on the official exam page: CompTIA XK0-004 exam overview.

You can book your XK0-004 exam through any of these official registration channels:

• CompTIA Official Site
• Pearson VUE Registration

The exam is delivered as In-person at Pearson VUE test centers or online proctored, so you can pick the option that fits your schedule when you book.

CompTIA recommends the following training for CompTIA Linux+ Certification candidates:

• Official CompTIA Study Guide
• CompTIA CertMaster

Pair that training with the 485 practice questions from Prep4away and you can check your readiness topic by topic before exam day.

Yes. Prep4away offers a free PDF demo for the CompTIA Linux+ Certification exam so you can judge the quality of our questions and answers before paying anything. Every purchase also comes with 365 days of free updates, and once that period expires you can extend your update service at a 50% discount.

Your purchase is protected by a 100% money-back guarantee. If you sit the corresponding XK0-004 exam within 60 days of buying and do not pass, send us a scan of your exam enrollment slip together with your official Score Report (PDF) within 2 days of the exam date — the candidate name must match the payer's name — and we will process your full refund within 7 days. Please note that exams taken within 3 days of purchase, materials downloaded without ever sitting the exam, free products, and expired orders are not covered. If you would rather not have a refund, you can exchange your order for two exam products of equal value, free of charge, and keep the update service on your original purchase.

Delivery is instant: your files are emailed to you within one minute of payment and can also be downloaded directly, with no limit on the number of computers you install them on. If nothing has arrived within 2 hours, contact our customer service team and we will sort it out.

The CompTIA Linux+ Certification syllabus is organized into 5 domains. The main areas include Hardware and System Configuration (21%), Security (19%), and Automation and Scripting (14%). Scroll up to the Exam Topics section above for the complete, current outline before you plan your study schedule.