Expanding an alias to multiple recipients | LinuC Level 1 102 Exam original practice question

1.09.3Basic

Deliver mail to local alias ops to both alice and bob.

Which /etc/aliases 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.

Comma separator: The delimiter used to list multiple destinations in an alias expansion.
Colon separator: The delimiter between an alias name and its destination list.
Distribution alias: An alias that expands one address into multiple recipients.
Alias loop: A circular alias reference that causes delivery expansion to repeat.

Detailed explanation

Incorrectops: alice bob

Incorrect. A space alone is not the normal multiple-destination separator.

Correctops: alice, bob

Correct. ops expands to both alice and bob.

Incorrectalice,bob: ops

Incorrect. It reverses the expansion direction.

Incorrectops = alice,bob

Incorrect. aliases uses colon syntax.

An example you can run in a temporary verification environment.

printf '%s
' 'ops: alice, bob' | cut -d: -f2

 alice, bob

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-102-1108

EnvironmentPOSIX cut / 模擬設定のみ

Last technical review2026-08-13

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