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Choice is good; informed choice is better. ActualTestsIT offers a free demo of the XK0-004 materials so you can experience the CompTIA Linux+ Certification content firsthand in 2026 — then decide to buy or not, entirely on the evidence.
CompTIA XK0-004 Exam Overview:
| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Linux+ Certification Exam |
| Exam Number: | XK0-004 |
| Exam Price: | USD 329 - 358 |
| Certificate Validity Period: | 3 years |
| Passing Score: | 720 (scale 100-900) |
| Exam Format: | Multiple Choice, Performance-Based, Multiple Response, Fill-in-the-Blank |
| Exam Duration: | 90 minutes |
| Available Languages: | Spanish, Portuguese, Japanese, English |
| Real Exam Qty: | Up to 90 |
| Related Certifications: | CompTIA Network+ CompTIA Server+ CompTIA A+ |
| Recommended Training: | Official CompTIA Study Guide CompTIA CertMaster |
| Exam Registration: | CompTIA Official Site Pearson VUE Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | In-person at Pearson VUE test centers or online proctored |
| Pre Condition: | No mandatory prerequisites; recommended: 9–12 months of hands-on Linux administration experience, CompTIA A+ and/or Network+ knowledge |
| Official Syllabus URL: | https://comptiacdn.azureedge.net/webcontent/docs/default-source/exam-objectives/comptia-linux-xk0-004-exam-objectives-(v5-0).pdf |
CompTIA XK0-004 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Linux Troubleshooting and Diagnostics | 20% | - Network and Connectivity Issues
|
| Systems Operation and Maintenance | 26% | - Command Line Interface
|
| Hardware and System Configuration | 21% | - Network Configuration
|
| Security | 19% | - System Hardening
|
| Automation and Scripting | 14% | - Bash Shell Scripting
|
Know the XK0-004 Exam — and Know Your Options
You do not need to buy review material twice. If you fail the corresponding exam within 60 days of purchase, send us a scanned copy of your enrollment slip and your official Score Report PDF within two days of the exam date, and we will process a full refund within seven days of verification. Exclusions: exams taken within three days of purchase, candidate names that do not match the payer, and free or expired products. If you would rather switch tracks, we will exchange your product for two others of equal value at no cost.
The CompTIA Linux+ Certification blueprint centers on these domains:
- Systems Operation and Maintenance (26%)
- Automation and Scripting (14%)
- Linux Troubleshooting and Diagnostics (20%)
Additional domains complete the official outline, and our bank covers every one.
Registration goes through the official channels below:
Pick a test center or online session that fits your calendar, and book early for the widest choice of dates.
By daily checking and automatic delivery. Our CompTIA experts check for updates every day, and whenever the XK0-004 bank is revised, the system sends the latest version to you automatically — free for 365 days from purchase. The bank stays closely linked to the actual exam content, with expert-verified answers throughout. Choose among three formats: a printable PDF for easy notes, a Windows PC test engine that simulates the real exam environment, and an online engine that runs on any device and works offline after the first download. A free demo lets you experience all of it before buying.
Instantly. Upon successful payment, our system sends the product file to your mailbox automatically — typically within about a minute — alongside an immediate download link. If nothing arrives within two hours, check your spam folder and contact our 24/7 support team. Installations are unlimited, and updates are free for 365 days: each new version is delivered to you automatically, followed by a 50% renewal discount when the period ends.
Currently, the XK0-004 exam's passing score is 720 (scale 100-900) and the registration fee is USD 329 - 358. These figures belong to CompTIA and can be revised, so confirm them on the official site before scheduling.
CompTIA states the following prerequisites for the CompTIA Linux+ Certification: No mandatory prerequisites; recommended: 9–12 months of hands-on Linux administration experience, CompTIA A+ and/or Network+ knowledge.
For the authoritative details, see the official certification page.
CompTIA recommends these official training resources:
Pair the course that fits your background with consistent question practice for the best results.
According to the latest exam information, the XK0-004 exam contains Up to 90 questions and lasts 90 minutes minutes. Simulating those conditions at home with the PC test engine is excellent preparation for the real environment.
CompTIA Linux+ Certification Sample Questions:
An administrator has written the following Bash script:
All necessary files exist in the correct locations. However, when the administrator executes /home/user/test.sh the following error is received:
No such file or directory
Which of the following is the MOST likely cause of the error?
- A. Nslookup is not installed.
- B. The script is not executable.
- C. The formatting of the file is incorrect.
- D. The shebang points to the wrong path.
Correct Answer: D 🗳️
An administrator schedules downtime on a system to find out why it takes so long to boot. Which of the following commands will help the administrator determine the issue with this system?
- A. systemct1 status unit-files
- B. syated-analyze time
- C. systemd-analyze blame
- D. systemct1 mask start
Correct Answer: A 🗳️
An administrator has modified the configuration file for a service. The service is still running but is not using the new configured values. Which of the following will BEST remediate this issue?
- A. kill -HUP
- B. renice -10
- C. init 0
- D. service start
Correct Answer: A 🗳️
A user requested a USB serial device to be added to a desktop computer. The device has built-in kernel driver support. The administrator tested the device installation and access, but the user cannot access the serial port.
Each time the user attempts to access the device, an error log is created that shows the user does not have permission to use the serial port. Which of the following will add a user to the group that has serial port capabilities?
- A. usermod -a -G serialport $USER
- B. usermod -a -G root $USER
- C. usermod -a -G dialout $USER
- D. usermod -a -G modem $USER
Correct Answer: C 🗳️
An administrator is provisioning and attaching a secondary disk to a Linux server as a data drive. Which Of the following commands the administrator use to find the UUID Of the disk so the drive can be mounted upon boot?
- A. 2label
- B. isblk
- C. fstab
- D. blkid
Correct Answer: C 🗳️
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