LPI (Linux Professional Institute)-Level 1 Set 1

1.

How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?

6 14 30 62

2.

Which of the following statements is true if the UID of a regular user is identical to the GID of a group?

UID have precedence over GIDs, therefore the user is available while the group doesn't. The user as well as the group are not available to avoid ambiguity due to the ID conflict. UIDs and GIDs are independent of each other, therefore the user as well as the group are still available. The user is the only member of the group, even if the group configuration contains other members.

3.

Which of the following information is stored in /etc/shadow for each user?

The timestamp of the user's last login The user's private SSH keys The hashed password of the user The numerical user ID (UID)

4.

Which of the following commands shows all active systemd timers?

systemctl-timer show timectl list systemctl systemctl list-timers

5.

What is true about the file /etc/localtime?

It is a plain text file containing a string such as Europe/Berlin It is created and maintained by the NTP service based on the location of the system's IP address. It is a symlink to /sys/device/clock/ltime and always contains the current local time. It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.

6.

Which of the following statements is true regarding systemd timer units?

Timer units can only be defined within a service unit's file. The command executed by the timer is specified in the timer unit's [Cmd] section. A dedicated system service, systemd-cron, handles the execution of timer units. Each systemd timer unit controls a specific systemd service unit.

7.

Which of the following commands should be executed when starting a login shell in order to change the language of messages for an internationalized program to Portuguese (pt)?

export LANGUAGE="pt" export LC_MESSAGES="pt" export UI_MESSAGES="pt" export MESSAGE="pt"

8.

Which of the following files assigns a user to its primary group?

/etc/pgroup /etc/shadow /etc/passwd /etc/group

9.

Which of the following entries in /etc/syslog.conf writes all mail related events to the file /var/log/maillog and sends all critical events to the remote server logger.example.com?

mail.* /var/log/maillog
mail,crit @logger.example.org mail.* /var/log/maillogmail.crit syslog://logger.example.org mail /var/log/maillogmail.crit @logger.example.org mail.* /var/log/maillogmail.crit @logger.example.org

10.

Which of the following protocols is related to the term open relay?

SMTP POP3 NTP IMAP

LPI (Linux Professional Institute)-Level 1 Set 1

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