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XK0-005 Domain 4: Troubleshooting

Server boot drops to emergency mode. Likely?

Multiple choice — select one answer

Answer choices

  1. a. Non-root cannot bind privileged ports or port in use
  2. b. traceroute or tracepath
  3. c. Crontab syntax, service crond active, and paths
  4. d. /etc/fstab UUID typo prevents mount

Architectural breakdown & explanation

Bad fstab entries trigger emergency mode.

Correct answer(s): d. /etc/fstab UUID typo prevents mount

Exam domain: Domain 4: Troubleshooting (18% weight on the official guide).

Official documentation & study links

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