Ignoring DNS supplied by DHCP | LPIC-1 102-500 Exam original practice question

109.2Standard

Use automatic IPv4 configuration but ignore DHCP-provided DNS and use only explicitly configured DNS.

Which property should be set?

Hint 1: Focus on the requirement

Identify what must change and what must remain unchanged. Then choose the command whose scope matches that requirement.

Hint 2: Check each command's role

Separate commands that display information, change state, remove data, or affect a child process.

ipv4.never-default yes: Incorrect. never-default controls default routes.
ipv4.may-fail no: Incorrect. may-fail controls connection failure behavior.
ipv4.ignore-auto-routes yes: Incorrect. ignore-auto-routes affects routes, not DNS.
ipv4.ignore-auto-dns yes: Correct. ignore-auto-dns suppresses DHCP DNS.

Detailed explanation

Incorrectipv4.never-default yes

Incorrect. never-default controls default routes.

Incorrectipv4.may-fail no

Incorrect. may-fail controls connection failure behavior.

Incorrectipv4.ignore-auto-routes yes

Incorrect. ignore-auto-routes affects routes, not DNS.

Correctipv4.ignore-auto-dns yes

Correct. ignore-auto-dns suppresses DHCP DNS.

An example you can run in a temporary verification environment.

printf '%s
' 'ipv4.ignore-auto-dns=yes'

ipv4.ignore-auto-dns=yes

Foundation review

Check whether the command acts on the current shell, a new process, an existing process, or a file.

Use the supplied command and compare the output with the expected result.

Question IDKP-109-800

Environmentproperty名の表示のみ

Last technical review2026-08-13