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XK0-005 Domain 4: Troubleshooting

DNS resolution fails on host. Check?

Multiple choice — select one answer

Answer choices

  1. a. /etc/fstab UUID typo prevents mount
  2. b. Verify out-of-band before accepting new key
  3. c. /etc/resolv.conf nameservers and dig test
  4. d. ausearch / audit2why and booleans

Architectural breakdown & explanation

Resolver config and queries diagnose DNS.

Correct answer(s): c. /etc/resolv.conf nameservers and dig test

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

Official documentation & study links

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