CompTIA Linux+ XK0-004

Booking the XK0-004 exam is an investment, and a failed attempt means paying the registration fee all over again. With 485 practice questions from Getcertkey, you walk into the CompTIA Linux+ Certification exam knowing exactly where you stand.

CompTIA XK0-004 Exam Overview:

Certification Vendor:	CompTIA
Exam Name:	CompTIA Linux+ Certification Exam
Exam Number:	XK0-004
Exam Duration:	90 minutes
Exam Format:	Multiple Response, Performance-Based Questions, Multiple Choice
Related Certifications:	CompTIA Linux+
Real Exam Qty:	Maximum 90
Exam Price:	$338 USD
Certificate Validity Period:	3 years
Passing Score:	720 (on a scale of 100-900)
Available Languages:	Japanese, Portuguese, English, Spanish
Sample Questions:
Exam Way:	Pearson VUE testing center or online proctored exam.
Pre Condition:	No formal prerequisite. Recommended: 9-12 months of hands-on experience configuring, monitoring, and supporting Linux servers. CompTIA A+, Network+, or Server+ knowledge is beneficial.
Official Syllabus URL:	https://www.comptia.org/certifications/linux

CompTIA XK0-004 Exam Syllabus Topics:

CompTIA Linux+ Certification Exam FAQ: What Candidates Ask Most

What is the CompTIA XK0-004 exam?

The XK0-004 exam is the official CompTIA exam behind the 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 Linux+, so the knowledge you build here carries over to those tracks as well.

How many questions are on the XK0-004 exam, and how much time do I get?

The XK0-004 exam contains Maximum 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 XK0-004 exam, and what does it cost?

The passing score for the XK0-004 exam is 720 (on a scale of 100-900), and the official registration fee is $338 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 485 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 XK0-004 exam?

No formal prerequisite. Recommended: 9-12 months of hands-on experience configuring, monitoring, and supporting Linux servers. CompTIA A+, Network+, or Server+ knowledge is beneficial. Requirements can change when CompTIA revises its certification program, so confirm the current eligibility rules on the official exam page before you register.

Can I try the XK0-004 practice questions before I buy?

Yes. Getcertkey provides a free XK0-004 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 XK0-004 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 XK0-004 exam?

The CompTIA Linux+ Certification exam blueprint is organized into 5 domains. The first three are:

• Linux Troubleshooting and Diagnostics — 20% of the exam
• Security — 19% of the exam
• Automation and Scripting — 14% 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

A junior administrator of a physical server receives log messages indicating the out-of-memory killer has been active. All memory slots are in use on the motherboard, but additional disk space is available. Space has been allocated for a swap file.
Which of the following should the administrator use to reduce the output of memory messages?

A. echo "1" > /proc/meninfo ; swapon / swapfile
B. free : swapoff / swapfile ; swapon -a
C. mkswap /swapfile; swapon -a
D. fallocate -l 2G /swapfile && swapon -a

Question 2

Which of the following will provide a list of all flash, external, internal, and SSD drives?

A. lsblk
B. lsmod
C. lspci
D. lsusb

Question 3

On a UEFI-based system, which of the following invokes GRUB2 from the EFI command prompt?

A. boot//EFI/grub2.efi
B. /grub2.efi
C. EFI/grub2.efi
D. /boot/EFI/grub2.efi

Question 4

A junior systems is configuring localization option environment variables. The administrator is given a checklist of tasks with the following requirements:
View current settings of the LC_ALL environment variable only.
Modify the LANG environment variable to US English Unicode.
Given this scenario, which of the following should be performed to meet these requirements? (Choose two.)

A. locale
B. stty
C. export $LANG = en_US.UTF
D. cat $LC_ALL
E. echo $LC_ALL
F. export LANG = en_US.UTF-8

Question 5

Which of the following BEST describes build automation?

A. Automating the creation of software and related processes
B. Automatically categorizing servers in the infrastructure
C. Bringing systems in line with the desired automated configuration
D. Managing and provisioning servers via automatic templates

Solutions: