Writing local0 logs to a dedicated file | LinuC Level 1 102 Exam original practice question

1.09.2Basic

Save every local0 priority to local file /var/log/app.log.

Which rsyslog line is appropriate?

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.

local0.* /var/log/app.log: Correct. It writes all local0 messages to the local file.
*.local0 /var/log/app.log: Incorrect. It reverses facility and priority.
local0.* @/var/log/app.log: Incorrect. @ denotes remote forwarding and is not used before a local path.
/var/log/app.log local0.*: Incorrect. The selector and action order is reversed.

Detailed explanation

Correctlocal0.* /var/log/app.log

Correct. It writes all local0 messages to the local file.

Incorrect*.local0 /var/log/app.log

Incorrect. It reverses facility and priority.

Incorrectlocal0.* @/var/log/app.log

Incorrect. @ denotes remote forwarding and is not used before a local path.

Incorrect/var/log/app.log local0.*

Incorrect. The selector and action order is reversed.

An example you can run in a temporary verification environment.

printf '%s
' 'local0.* /var/log/app.log' | awk '{print $1, $2}'

local0.* /var/log/app.log

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 IDKL-102-1089

EnvironmentPOSIX awk / 模擬設定のみ

Last technical review2026-08-13