Locked In: Prep for Linux+

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About this app

Prepare for the CompTIA Linux+ XK0-006 exam with lessons and original questions on administration, services, security, scripting and troubleshooting. Work through 5 study domains: System Management, Services and User Management, Security, Automation, Orchestration & Scripting, and Troubleshooting.

WHAT'S INSIDE
• 60 lessons with clear explanations and progress tracking
• 459 original practice questions with answer feedback
• 131 flashcards and a 159-term glossary
• 16 interactive scenario practice activities
• Timed practice, bookmarks, notes and review tools

START FREE
Explore 9 lessons, 10 practice questions, 30 flashcards, 159 glossary terms and 2 scenario activities. Try a short quiz and keep your progress on your device.

ONE-TIME FULL UNLOCK
A single in-app purchase opens the remaining study catalog and timed practice. There is no subscription. Google Play shows your local price before purchase and lets you restore access with the purchasing account.

OFFLINE USE AND PRIVACY
Bundled course content works offline. Google Play purchase and restore, optional usage analytics, and external support links need a connection. Usage analytics is off unless you choose to enable it; you can turn it off in Settings.

Locked In is an independent study aid. It is not affiliated with, endorsed by, or sponsored by CompTIA. Practice scores measure in-app study and do not predict an official exam result. Scenario activities are extra learning exercises, not a claim about the official exam's question formats.
Linux+ study: lessons, quizzes, flashcards and scenario practice.
Updated on
Nov 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, Financial info and 3 others
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

Initial production release.