Forwarding a local alias to a user | LinuC Level 1 102 Exam original practice question

1.09.3Basic

Deliver mail addressed locally to support into user helpdesk's mailbox.

Write the entry in /etc/aliases.

Which line is appropriate?

Hint 1: Focus on mail roles

Separate alias expansion, user forwarding, message submission, queue inspection, and MTA routing roles.

Hint 2: Key terms

Review the short definitions of alias expansion, forwarding, submission, queueing, and delivery involved.

Alias syntax: The notation that maps a local alias name to one or more delivery destinations.
Local alias: A local name that expands to a mailbox or another delivery destination.
Mailbox recipient: A local mailbox that receives a message after alias expansion.
newaliases: A command commonly used to rebuild the lookup database after alias changes.

Detailed explanation

Correctsupport: helpdesk

Correct. Mail to support is delivered to helpdesk.

Incorrectsupport -> helpdesk

Incorrect. aliases does not use arrow syntax.

Incorrecthelpdesk: support

Incorrect. It reverses alias and destination.

Incorrectsupport = helpdesk

Incorrect. aliases uses a colon, not equals.

An example you can run in a temporary verification environment.

printf '%s
' 'support: helpdesk' | awk -F: '{print $1, $2}'

support  helpdesk

Foundation review

A mail transfer agent that accepts, routes, and queues messages.

Rules that map a local address to one or more delivery destinations.

Temporary storage for messages waiting to be delivered or retried.

Question IDKL-102-1107

EnvironmentPOSIX awk / 模擬設定のみ

Last technical review2026-08-13

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