Question 1

What is true regarding the command sendmail?
A) With any MTA, the sendmail command must be run periodically by the cron daemon.
B) All MTAs, including Postfix and Exim, provide a sendmail command.
C) The sendmail command prints the MTAs queue history of which mails have been sent successfully.
D) It is only available when the sendmail MTA is installed.

Accepted Answer

While sendmail is a popular MTA, other MTAs such as Postfix and Exim also provide a sendmail command. This command is designed to be compatible with the traditional sendmail command, allowing scripts and programs written for sendmail to work with other MTAs as well. Option A is incorrect as it is not necessary to run the sendmail command periodically with any MTA. Option C is incorrect as the sendmail command does not provide information on the MTAs queue history. Option D is incorrect as the sendmail command can be available with other MTAs besides sendmail.

Question 2

SIMULATION Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)

Accepted Answer

The answer of SIMULATION Which file specifies the user accounts...

Question 3

What is true regarding the command userdel --force --remove bob?
A) The user bob is removed from the system's user database.
B) The user bob's home directory is removed.
C) The locate database is updated to drop files owned by bob.
D) All files owned by bob are remove from all mounted filesystems.
E) In case bob was the last member of a group, that group is deleted.

Accepted Answer

The command userdel --force --remove bob will remove the user bob from the system's user database (A) and also remove their home directory (B). It does not update the locate database to drop files owned by bob (C), remove all files owned by bob from all mounted filesystems (D), or delete any groups that bob may have belonged to (E).

Question 4

Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?
A) 0 * * * 30 myscript
B) 30 * * * 6 myscript
C) 30 0 * * 0 myscript
D) 30 0-23 * * 0 myscript
E) 0 0-23 * * 30 myscript

Accepted Answer

The answer of Which of the following crontab entries will...

Question 5

SIMULATION Which option in the /etc/ntp.conf file specifies an external NTP source to be queried for time information? (Specify ONLY the option without any values or parameters.)

Accepted Answer

The answer of SIMULATION Which option in the /etc/ntp.conf file...

Question 6

SIMULATION Which environment variable should be set in order to change the time zone for the commands run from within the environment variable's scope? (Specify the variable name only.)

Accepted Answer

The answer of SIMULATION Which environment variable should be set...

Question 7

Where are user specific crontabs stored?
A) In the database file /etc/crontab.db which is shared by all users.
B) As individual per-user files within /var/spool/cron.
C) As individual per-user files in /etc/cron.user.d.
D) In the .crontab file in the user's home directory.
E) In the file /var/cron/ user-crontab which is shared by all users.

Accepted Answer

User specific crontabs are stored as individual per-user files within /var/spool/cron.

Question 8

SIMULATION After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

Accepted Answer

The answer of SIMULATION After configuring printing on a Linux...

Question 9

What is true about the file /etc/localtime?
A) It is a plain text file containing a string such as Europe/Berlin.
B) It is created and maintained by the NTP service based on the geolocation of the system's IP address.
C) It is a symlink to /sys/device/clock/ltime and always contains the current local time.
D) It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.

Accepted Answer

The file /etc/localtime is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin. This file contains information about the system's timezone and is used by various applications to display local time correctly.

Question 10

Which of the following are syslog facilities?
A) local7
B) mail
C) advanced
D) postmaster
E) remote

Accepted Answer

The syslog facility is a field in the syslog message header that refers to the type of program generating the message. "local7" and "mail" are valid syslog facilities, while "advanced", "postmaster", and "remote" are not.

Question 11

SIMULATION The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)

Accepted Answer

The answer of SIMULATION The system's timezone may be set...

Question 12

SIMULATION In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

Accepted Answer

The answer of SIMULATION In which file, if present, must...

Question 13

Which of the following steps prevents a user from obtaining an interactive login session?
A) Run the command chsh -s /bin/false with the user name.
B) Set the UID for the user to 0.
C) Remove the user from the group staff.
D) Add the user to /etc/noaccess.
E) Create a .nologin file in the user's home directory.

Accepted Answer

The answer of Which of the following steps prevents a...

Question 14

Which of the following tasks can be accomplished using the command date?
A) Synchronize the hardware and system clocks.
B) Output date and time in different formats.
C) Set the system clock.
D) Set the hardware clock.
E) Update the time via NTP.

Accepted Answer

The answer of Which of the following tasks can be...

Question 15

Which of the following fields can be found in the /etc/group file?
A) The list of users that belong to the group.
B) The home directory of the group.
C) The name of the group.
D) The description of the group.
E) The password of the group.

Accepted Answer

The answer of Which of the following fields can be...

Question 16

SIMULATION Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)

Accepted Answer

The answer of SIMULATION Which command is used to add...

Question 17

Which commands can be used to change a user's account aging information?
A) usermod
B) passwd
C) chattr
D) chage
E) chsh

Accepted Answer

The answer of Which commands can be used to change...

Question 18

To prevent a specific user from scheduling tasks with at, what should the administrator do?
A) Add the specific user to /etc/at.allow file.
B) Add the specific user to [deny] section in the /etc/atd.conf file.
C) Add the specific user to /etc/at.deny file.
D) Add the specific user to nojobs group.
E) Run the following: atd --deny [user].

Accepted Answer

The /etc/at.deny file contains a list of users who are not allowed to use the at command to schedule tasks. Adding the specific user to this file will prevent them from scheduling tasks using at.

Question 19

Which file inside the CUPS configuration directory contains the definition of the printers?
A) cups-devices.conf
B) snmp.conf
C) printcap.conf
D) printers.conf
E) cupsd.conf

Accepted Answer

The printers.conf file inside the CUPS configuration directory contains the definition of the printers.

Question 20

SIMULATION After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)

Accepted Answer

The answer of SIMULATION After adding a new email alias...

Exam 5: LPI Level 1 Exam 102, Junior Level Linux Certification, Part 2 of 2

What is true regarding the command sendmail?

SIMULATION Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)

What is true regarding the command userdel --force --remove bob?

Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

SIMULATION Which option in the /etc/ntp.conf file specifies an external NTP source to be queried for time information? (Specify ONLY the option without any values or parameters.)

SIMULATION Which environment variable should be set in order to change the time zone for the commands run from within the environment variable's scope? (Specify the variable name only.)

Where are user specific crontabs stored?

SIMULATION After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

What is true about the file /etc/localtime?

Which of the following are syslog facilities?

SIMULATION The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)

SIMULATION In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

Which of the following steps prevents a user from obtaining an interactive login session?

Which of the following tasks can be accomplished using the command date?

Which of the following fields can be found in the /etc/group file?

SIMULATION Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)

Which commands can be used to change a user's account aging information?

To prevent a specific user from scheduling tasks with at, what should the administrator do?

Which file inside the CUPS configuration directory contains the definition of the printers?

SIMULATION After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)