CompTIA Authoritative New XK0-006 Test Topics–Pass XK0-006 First Attempt

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CompTIA XK0-006 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Security: Focuses on securing Linux systems through authentication, firewalls, OS hardening, account policies, cryptography, and compliance checks.
Topic 2
  • Troubleshooting: Addresses diagnosing and resolving issues across system health, hardware, storage, networking, security configurations, and performance optimization.
Topic 3
  • Services and User Management: Covers day-to-day Linux administration including file management, user accounts, processes, software, services, and container operations.
Topic 4
  • Automation, Orchestration, and Scripting: Covers task automation with tools like Ansible, shell and Python scripting, Git version control, and responsible AI-assisted development.

>> New XK0-006 Test Topics <<

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CompTIA Linux+ Certification Exam Sample Questions (Q160-Q165):

NEW QUESTION # 160
Users connecting to a MySQL database on a Linux system report frequent errors. An administrator reviews the following partial output of the /proc/meminfo and freecommands:

Which of the following should the administrator do to ensure that the MySQL service will continue to run even if the system runs out of swap space? (Choose two.)

Answer: C,E

Explanation:
Creating a swap file with dd if=/dev/zero of=/swapfile bs=1024 count=65536 allocates additional swap space that MySQL can use when RAM is exhausted.
Formatting and enabling a swap partition with mkswap /dev/sda2; swapon -v /dev/sda2 brings another swap device online, further increasing the system's swap capacity.


NEW QUESTION # 161
An administrator attempts to install updates on a Linux system but receives error messages regarding a specific repository. Which of the following commands should the administrator use to verify that the repository is installed and enabled?

Answer: B

Explanation:
Package management troubleshooting is an important skill in Linux+ V8, especially on RPM-based distributions that use yum or dnf. When update errors reference a repository, the administrator must verify whether the repository exists and whether it is enabled.
The command yum repolist all displays all configured repositories, including those that are enabled, disabled, or temporarily unavailable. This makes it the most effective command for diagnosing repository-related issues. It allows administrators to quickly confirm the repository's status and take corrective action, such as enabling it or fixing configuration errors.
The other options are incorrect. yum repo-pkgs manages packages within a repository but does not list repository status. yum list installed repos is not a valid yum command. yum reposync is used to mirror repositories locally and is not intended for verification.
Linux+ V8 documentation highlights yum repolist all as the standard command for repository inspection and troubleshooting.
Therefore, the correct answer is D. yum repolist all.


NEW QUESTION # 162
A Linux administrator wants to use AI to deploy infrastructure as code. Which of the following is a best practice regarding the use of AI for this task?

Answer: A

Explanation:
The use of AI-assisted tools for Infrastructure as Code (IaC) is increasingly common in modern DevOps practices, which are covered in the Automation and Orchestration domain of CompTIA Linux+ V8. While AI can accelerate code generation, Linux+ emphasizes that generated code must still follow best practices for quality, security, and maintainability.
Option C, linting generated code, is the correct answer. Linting involves analyzing code for syntax errors, style violations, logical issues, and potential security risks before deployment. When AI tools generate IaC artifacts such as Terraform files, Ansible playbooks, or shell scripts, linting ensures that the output adheres to organizational standards and does not introduce misconfigurations or vulnerabilities.
Linux+ V8 documentation stresses that automation does not eliminate the need for validation. Administrators remain responsible for verifying correctness and compliance. Linting tools such as ansible-lint, terraform fmt, and shell linters help detect issues early in the pipeline and prevent faulty infrastructure deployments.
The other options are poor practices. Copying and pasting code increases the risk of errors and inconsistency.
Generating monolithic code contradicts modular IaC principles. Merging CI/CD pipelines is unrelated to validating AI-generated infrastructure code.
Therefore, the correct answer is C. Linting generated code.


NEW QUESTION # 163
A user reports issues when trying to connect to one of the Linux servers. The server administrator reviews the following outputs:

Which of the following statements describes the cause and resolution for this issue?

Answer: C

Explanation:
The logs show machine check exceptions and a fatal machine check kernel panic, which indicate hardware-level errors detected by the CPU. These errors are typically related to faulty hardware components and must be investigated and resolved by the server or hardware support team rather than through software remediation.


NEW QUESTION # 164
A systems administrator is investigating bandwidth issues on a Linux file server that should be able to easily exceed 12.5MBps. The administrator inspects the following information:

Which of the following is causing the bandwidth issue?

Answer: D

Explanation:
The interface has negotiated a speed of 100Mbps, which caps throughput to around 12.5MBps under ideal conditions. If the server should exceed that, the link is negotiating at a lower-than- expected speed (for example, it should be at 1Gbps or higher).


NEW QUESTION # 165
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