Linux+ Practice Test 2026: Can You Pass XK0-006?

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Quizzes Created: 7097 | Total Attempts: 80,150
| Questions: 20 | Updated: Jul 1, 2026
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1. Which runlevel is used for graphical multi-user mode in systemd systems?

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Linux+ Practice Test 2026: Can You Pass Xk0-006? - Quiz

Test your readiness for the CompTIA Linux+ (XK0-006) certification exam with this medium-difficulty practice quiz. Covering essential Linux system administration, file management, user permissions, networking, and security concepts, this assessment helps you identify knowledge gaps before exam day. Ideal for college-level learners preparing for professional Linux+ certification.

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2. What is the purpose of the /etc/sudoers file?

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3. Which command changes file ownership?

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4. What is the primary function of the systemctl command?

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5. Which command displays system memory usage?

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6. What does the ps command display?

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7. Which command is used to schedule recurring tasks in Linux?

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8. What is the purpose of the umask command?

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9. Which file contains DNS resolver configuration?

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10. What does the iptables command manage?

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11. Which command displays the current working directory path in Linux?

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12. What does the tar command do?

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13. Which command displays network interface configuration?

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14. What is the default SSH port number?

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15. Which of the following is a valid IPv4 address?

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16. What does the grep command do?

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17. Which command is used to search for files by name in Linux?

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18. What is the primary purpose of the sudo command?

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19. Which file contains user account information in Linux?

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20. What does the chmod 755 permission setting allow?

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Which runlevel is used for graphical multi-user mode in systemd...
What is the purpose of the /etc/sudoers file?
Which command changes file ownership?
What is the primary function of the systemctl command?
Which command displays system memory usage?
What does the ps command display?
Which command is used to schedule recurring tasks in Linux?
What is the purpose of the umask command?
Which file contains DNS resolver configuration?
What does the iptables command manage?
Which command displays the current working directory path in Linux?
What does the tar command do?
Which command displays network interface configuration?
What is the default SSH port number?
Which of the following is a valid IPv4 address?
What does the grep command do?
Which command is used to search for files by name in Linux?
What is the primary purpose of the sudo command?
Which file contains user account information in Linux?
What does the chmod 755 permission setting allow?
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