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XK0-005 Domain 4: Troubleshooting

Network interface down after reboot. Check?

Multiple choice — select one answer

Answer choices

  1. a. /etc/fstab UUID typo prevents mount
  2. b. Non-root cannot bind privileged ports or port in use
  3. c. chmod +x script or invoke with bash
  4. d. ONBOOT=yes in ifcfg or netplan config

Architectural breakdown & explanation

Persistent config must enable interface at boot.

Correct answer(s): d. ONBOOT=yes in ifcfg or netplan config

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

Official documentation & study links

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