A junior admin needs to determine which MTA is currently handling mail on a FreeBSD server. The system was set up by a previous employee who left no documentation. The admin suspects either Sendmail or Postfix is active. Which command sequence will most reliably reveal the active MTA?

Run `ls /etc/mail/` and check if sendmail.cf or main.cf exists.

Run `ps aux | grep -E 'sendmail|postfix'` and check the process list for the master or sendmail daemon.

Run `mailq` and observe the queue format to identify the MTA.

Run `service postfix status` and if it fails, assume Sendmail is active.

A small office runs a FreeBSD server that hosts a web application. The application sends notification emails to users. The server's MTA is configured to deliver mail directly to the internet. Recently, some emails have been rejected by recipient servers due to the sending server's IP being on a blocklist. The admin wants to reduce this risk. What is the most effective configuration change?

Increase the frequency of queue flushing to send mail faster.

Disable the MTA and have the application send mail directly via SMTP to recipient servers.

Change the MTA to use a different port for outgoing mail.

Configure the MTA to relay all outgoing mail through a reputable SMTP relay service.

LPI BSD Specialist

Domain 3Objective 5

713.5 Mail Transfer Agents (MTA) Basics (weight: 1) BSD-SPECIALIST Practice Questions (Page 5)

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 21–25

21foundation · easy
Which parameter in sendmail.cf is used to specify a relay host for outgoing mail?
Select an answer first
22application · medium
A junior admin needs to determine which MTA is currently handling mail on a FreeBSD server. The system was set up by a previous employee who left no documentation. The admin suspects either Sendmail or Postfix is active. Which command sequence will most reliably reveal the active MTA?
Select an answer first
23foundation · easy
Which command is used to flush the mail queue in Sendmail?
Select an answer first
24foundation · easy
Which configuration file is commonly used to determine which MTA is installed on a BSD system?
Select an answer first
25application · medium
A small office runs a FreeBSD server that hosts a web application. The application sends notification emails to users. The server's MTA is configured to deliver mail directly to the internet. Recently, some emails have been rejected by recipient servers due to the sending server's IP being on a blocklist. The admin wants to reduce this risk. What is the most effective configuration change?
Select an answer first

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713.5 Mail Transfer Agents (MTA) Basics (weight: 1) BSD-SPECIALIST Practice Questions (Page 5)

Questions 21–25

Which parameter in sendmail.cf is used to specify a relay host for outgoing mail?

A junior admin needs to determine which MTA is currently handling mail on a FreeBSD server. The system was set up by a previous employee who left no documentation. The admin suspects either Sendmail or Postfix is active. Which command sequence will most reliably reveal the active MTA?

Which command is used to flush the mail queue in Sendmail?

Which configuration file is commonly used to determine which MTA is installed on a BSD system?

Keep studying — Topic 713: Basic BSD System Administration