Top Tips for Passing the LPI 102-400 Exam on Your First Try

A B

A B C

A C

B C

C B A

They are equivalent options with the same behaviour.

The -f option tests for a regular file. The -e option tests for an empty file.

Both options check the existence of the path. The -f option also confirms that it is a regular file.

The -f option tests for a regular file. The -e option tests for an executable file.

local7

mail

advanced

postmaster

remote

It fetches new emails from a remote server using POP3 or IMAP.

It is a multi-user mailing list manager.

It is a proprietary tool contained only in the qmail MTA.

It queries the mail queue of the local MTA.

It is a command-line based tool for reading and writing emails.

The skew in time between the system clock and the hardware clock.

The skew in time between the system clock and the reference clock.

Changes in the time zone of the current computer's location.

Adjustments needed to support Daylight Saving Time.

With any MTA, the sendmail command must be run periodically by the cron daemon.

All MTAs, including Postfix and Exim, provide a sendmail command.

The sendmail command prints the MTAs queue history of which mails have been sent successfully.

It is only available when the sendmail MTA is installed.

broadcast services

interface statistics

masquerading connections

network connections

routing tables

ps

netstat

nslookup

ifconfig

traceroute