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CompTIA · XK0-006 · 2025-07 objectives

CompTIA Linux+

274
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11
practice tests
1
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720 / 900
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Real questions from the Linux+ bank, one per domain. No account, no card needed! Just choose an answer and see the why.

1 / 5OBJ 1.1

According to the Filesystem Hierarchy Standard, which directory contains host-specific system configuration files?

Practice tests

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Exam objectives

What XK0-006 covers, and how much of the exam each domain accounts for. Percentages are the share of scored questions in the 2025-07 objectives.

1.0System Management

23%
  • 1.1Explain basic Linux concepts (Basic boot process, Filesystem Hierarchy Standard (FHS), Server architectures, Distributions, Graphical User Interface (GUI), Software licensing).
  • 1.2Summarize Linux device management concepts and tools (Kernel modules, Device management, initrd management, Custom hardware).
  • 1.3Given a scenario, manage storage in a Linux system (Logical Volume Manager (LVM), Volume group, Physical volume, Partitions, Filesystems, Utilities).
  • 1.4Given a scenario, manage network services and configurations on a Linux server (Network configuration, NetworkManager, Netplan, Common network tools).
  • 1.5Given a scenario, manage a Linux system using common shell operations (Common environmental variables, Paths, Relative, Shell environment configurations, Channel redirection, Basic shell utilities).
  • 1.6Given a scenario, perform backup and restore operations for a Linux server (Archiving, Compression tools, Other tools).
  • 1.7Summarize virtualization on Linux systems (Linux hypervisors, Virtual machines (VMs), VM operations, Bare metal vs. virtual machines, Network types, Virtual machine tools).

2.0Services and User Management

20%
  • 2.1Given a scenario, manage files and directories on a Linux system (Utilities, Links, Device types in /dev).
  • 2.2Given a scenario, perform local account management in a Linux environment (Add, Delete, Modify, Lock, Expiration, List).
  • 2.3Given a scenario, manage processes and jobs in a Linux environment (Process verification, Process ID, Process states, Priority, Process limits, Job and process management).
  • 2.4Given a scenario, configure and manage software in a Linux environment (Installation, update, and removal, Repository management, Package and repository exclusions, Update alternatives, Software configuration, Sandboxed applications).
  • 2.5Given a scenario, manage Linux using systemd (Systemd units, Utilities, Managing unit states).
  • 2.6Given a scenario, manage applications in a container on a Linux server (Runtimes, Image operations, Container operations, Volume operations, Container networks, Privileged vs. unprivileged).

3.0Security

18%
  • 3.1Summarize authorization, authentication, and accounting methods (Polkit, Pluggable Authentication Modules (PAM), Lightweight Directory Access Protocol (LDAP), Kerberos, Samba, Logging).
  • 3.2Given a scenario, configure and implement firewalls on a Linux system (firewalld, Uncomplicated Firewall (ufw), Netfilter module, Address translation, Stateful vs. stateless, Internet rotocol (IP) forwarding).
  • 3.3Given a scenario, apply operating system (OS) hardening techniques on a Linux system (Privilege escalation, File attributes, Permissions, Access control, Secure remote access, Avoid the use of unsecure access services).
  • 3.4Explain account hardening techniques and best practices (Passwords, Multifactor authentication (MFA), Checking existing breach lists, Restricted shells, pam_tally2, Avoid running as root).
  • 3.5Explain cryptographic concepts and technologies in a Linux environment (Data at rest, Data in transit, Hashing, Removal of weak algorithms, Certificate management, Avoiding self-signed certificates).
  • 3.6Explain the importance of compliance and audit procedures (Detection and response, Vulnerability scanning, Standards and audit, File integrity, Secure data destruction, Software supply chain).

4.0Automation, Orchestration, and Scripting

17%
  • 4.1Summarize the use cases and techniques of automation and orchestration in a Linux environment (Infrastructure as code, Unattended deployment, Deployment orchestration).
  • 4.2Given a scenario, perform automated tasks using shell scripting (Expansion, Functions, Conditional statements, Looping statements, Interpreter directive, Comparisons).
  • 4.3Summarize Python basics used for Linux system administration (Setting up a virtual environment, Built-in modules, Installing dependencies, Python fundamentals).
  • 4.4Given a scenario, implement version control using Git (.gitignore, add, branch, checkout, clone, commit).
  • 4.5Summarize best practices and responsible uses of artificial intelligence (AI) (Common use cases, Best practices, Prompt engineering).

5.0Troubleshooting

22%
  • 5.1Summarize monitoring concepts and configurations in a Linux system (Service monitoring, Data acquisition methods, Configurations).
  • 5.2Given a scenario, analyze and troubleshoot hardware, storage, and Linux OS issues (Kernel panic, Data corruption issues, Kernel corruption issues, Package dependency issues, Filesystem will not mount, Server not turning on).
  • 5.3Given a scenario, analyze and troubleshoot networking issues on a Linux system (Misconfigured firewalls, DHCP issues, DNS issues, Interface misconfiguration, Routing issues, Server unreachable).
  • 5.4Given a scenario, analyze and troubleshoot security issues on a Linux system (SELinux issues, File and directory permission issues, Account access, Unpatched vulnerable systems, Exposed or misconfigured services, Remote access issues).
  • 5.5Given a scenario, analyze and troubleshoot performance issues (Swapping, Out of memory, Slow application response, System unresponsiveness, High CPU usage, High load average).

Summarized from CompTIA Linux+’s published exam objectives. Always check the vendor’s current objectives before your exam.