A Postfix server is configured with `relayhost = smtp.example.com`. The admin adds an alias `info: bob` to the aliases file and runs `postalias /etc/aliases`. The admin sends a test email to `info@example.com` and it appears in the queue. The admin checks the queue with `postqueue -p` and sees the message is deferred. The admin verifies that the alias file is correct and `postalias` ran without errors. What is the most likely reason the alias is not being applied?

The message is deferred because the relay host is unreachable, and the alias will be applied once the relay is reachable.

The admin should have used `newaliases` instead of `postalias`.

The admin did not run `postfix reload` after adding the alias.

The domain `example.com` is not listed in `mydestination`, so the message is being relayed to the relay host instead of being delivered locally.

A Postfix server must send all outgoing mail through a smart host at `smtp.example.net`. The admin edits `/usr/local/etc/postfix/main.cf`. Which parameter and value should be set?

`smart_host = smtp.example.net`

`inet_interfaces = smtp.example.net`

`mydestination = smtp.example.net`

LPI BSD Specialist

Domain 3Objective 5

713.5 Mail Transfer Agents (MTA) Basics (weight: 1) BSD-SPECIALIST Practice Questions (Page 2)

Part of the Topic 713: Basic BSD System Administration domain, which makes up ~22% of our current practice bank. Linux Professional Institute does not publish an official question count, but from its 90-minute exam (~35–60 total, ~8–13 in this domain), expect 1–2 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

9concepts

Questions 6–10

6foundation · easy
Which command is used to rebuild the alias database in Postfix after editing the aliases file?
Select an answer first
7foundation · easy
In Postfix, which file is typically used to define email aliases?
Select an answer first
8expert · hard
A Postfix server is configured with `relayhost = smtp.example.com`. The admin adds an alias `info: bob` to the aliases file and runs `postalias /etc/aliases`. The admin sends a test email to `info@example.com` and it appears in the queue. The admin checks the queue with `postqueue -p` and sees the message is deferred. The admin verifies that the alias file is correct and `postalias` ran without errors. What is the most likely reason the alias is not being applied?
Select an answer first
9application · medium
A Postfix server must send all outgoing mail through a smart host at `smtp.example.net`. The admin edits `/usr/local/etc/postfix/main.cf`. Which parameter and value should be set?
Select an answer first
10foundation · easy
Which protocol is most commonly associated with the operation of a Mail Transfer Agent?
Select an answer first

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713.5 Mail Transfer Agents (MTA) Basics (weight: 1) BSD-SPECIALIST Practice Questions (Page 2)

Questions 6–10

Which command is used to rebuild the alias database in Postfix after editing the aliases file?

In Postfix, which file is typically used to define email aliases?

A Postfix server must send all outgoing mail through a smart host at `smtp.example.net`. The admin edits `/usr/local/etc/postfix/main.cf`. Which parameter and value should be set?

Which protocol is most commonly associated with the operation of a Mail Transfer Agent?

Keep studying — Topic 713: Basic BSD System Administration