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[General] Free PDF 2026 Marvelous CompTIA XK0-005: CompTIA Linux+ Certification Exam Valid

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【General】 Free PDF 2026 Marvelous CompTIA XK0-005: CompTIA Linux+ Certification Exam Valid

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CompTIA Linux+ certification exam has been updated to include modern technologies such as cloud computing, containerization, and virtualization. This ensures that candidates are up-to-date with current industry trends and have the skills necessary to work with the latest Linux-based technologies. The updated exam also covers security and compliance requirements, which are crucial in today's cybersecurity landscape.
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CompTIA XK0-005 exam is an industry-recognized certification that validates the skills and knowledge of individuals seeking a career in Linux administration. CompTIA Linux+ Certification Exam certification is offered by CompTIA, a leading technology association that provides vendor-neutral IT certifications for professionals in various fields. The CompTIA Linux+ certification is designed to test the technical skills and knowledge required to configure, manage, and troubleshoot Linux systems.
The CompTIA XK0-005 exam covers a wide range of topics related to Linux operating systems, including installation and package management, GNU and Unix commands, Linux file systems, scripting and data management, Linux security, and much more. XK0-005 Exam consists of multiple-choice and performance-based questions, which test candidates' ability to apply their knowledge in real-world scenarios. Passing the CompTIA Linux+ Certification Exam is a great way to demonstrate your skills and knowledge to potential employers and advance your career in the IT field.
CompTIA Linux+ Certification Exam Sample Questions (Q506-Q511):NEW QUESTION # 506
A Linux engineer set up two local DNS servers (10.10.10.10 and 10.10.10.20) and was testing email connectivity to the local mail server using the mail command on a local machine when the following error appeared:

The local machine DNS settings are:

Which of the following commands could the engineer use to query the DNS server to get mail server information?
  • A. dig @example.com 10.10.10.20 ptr
  • B. dig @10.10.10.20 example.com ns
  • C. dig @example.com 10.10.10.20 a
  • D. dig @10.10.10.20 example.com mx
Answer: D
Explanation:
Explanation
The command dig @10.10.10.20 example.com mx will query the DNS server to get mail server information.
The dig command is a tool for querying DNS servers and displaying the results. The @ option specifies the DNS server to query, in this case 10.10.10.20. The mx option specifies the type of record to query, in this case mail exchange (MX) records, which identify the mail servers for a domain. The domain name to query is example.com. This command will show the MX records for example.com from the DNS server 10.10.10.20.
This is the correct command to use to accomplish the task. The other options are incorrect because they either use the wrong syntax (@example.com 10.10.10.20 instead of @10.10.10.20 example.com), the wrong type of record (a or ptr instead of mx), or the wrong domain name (example.com ns instead of example.com mx). References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 13: Managing Network Services, page 415.

NEW QUESTION # 507
The systemd logs are disappearing after a restart, even though the free disk space is adequate. Which of the following is the cause of this behavior?
  • A. The service systemd-journald is disabled and masked
  • B. The journald size limit has been exceeded
  • C. The directory /tmp does not have enough tree space
  • D. The option Storage=volatile is set in the journald configuration
Answer: D
Explanation:
* A is correct: When Storage=volatile is set in /etc/systemd/journald.conf, logs are kept in RAM and lost on reboot.
Incorrect Options:
* B: Would cause rotation or truncation, not full loss after reboot.
* C: Would stop logging entirely, not just reset after boot.
* D: Journals are not stored in /tmp.
Reference:
CompTIA Linux+ XK0-005 Study Guide, Chapter 10
man journald.conf

NEW QUESTION # 508
A systems administrator is creating new user accounts on several Linux machines and wants to automate the process from a Linux system used for operations. In this operations system, the list of servers is located in the /home/user/serverslist file and the list of user accounts is located in the
/home/user/userslist file. Which of the following scripts will help accomplish this task?
  • A.
  • B.
  • C.
  • D.
Answer: D
Explanation:
The script in option B performs the task by SSH-ing into each server listed in serverslist and then adding each user listed in userslist. This is an effective way to remotely create user accounts without manually logging into each server. The ssh command allows the execution of the useradd commands on the remote machines.

NEW QUESTION # 509
A Linux administrator needs to rebuild a container with the httpd service in order to change some default parameters. Which of the following should be the first command line in the Dockerfile?
  • A. FROM httpd
  • B. BASE httpd
  • C. INHERIT httpd
  • D. USE httpd
Answer: A
Explanation:
In Docker, a Dockerfile is a script that contains instructions to build a container image. The first line in a Dockerfile is typically the FROM directive, which specifies the base image from which the container will be built.
The correct syntax for specifying a base image is:
ruby
CopyEdit
FROM <image>:<tag>
If no tag is provided, Docker will pull the latest version of the specified image by default.
httpd is the official Apache HTTP Server image available in Docker Hub.
The incorrect options:
BASE httpd → Incorrect, as there is no such directive in Dockerfile syntax.
USE httpd → Incorrect, this is not a valid Docker command.
INHERIT httpd → Incorrect, as Docker does not use INHERIT to specify base images.
Thus, the correct answer is A. FROM httpd.
Reference:
CompTIA Linux+ Official Documentation
Dockerfile Reference - Docker Docs
Official httpd Docker Image

NEW QUESTION # 510
A Linux administrator is updating the file that contains the addresses of the software and update repositories on an Ubuntu system. Which of the following files needs to be edited to accomplish this task?
  • A. /etc/apt/listchanges.conf
  • B. /etc/yum/yum.conf
  • C. /etc/dnf/dnf.conf
  • D. /etc/apt/sources.list
Answer: D
Explanation:
* Ubuntu uses APT as its package manager.
* Repository addresses are defined in /etc/apt/sources.list.
Incorrect Options:
* B: Controls display of changelogs during upgrades.
* C and D: Belong to Red Hat-based systems (YUM/DNF).
Reference:
CompTIA Linux+ XK0-005 Study Guide, Chapter 7
man sources.list

NEW QUESTION # 511
......
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