Free Access to Lpi.102-500.v2025-04-26.q132 with Valid Practice Test (Page 20)

Question 91

Which if the following tools, used for DNS debugging, reports not only the response from the name sever but also details about the query?

A.dnslookup
B.hostname
C.dig
D.zoneinfo
E.dnsq

Question 92

What is true regarding the file ~/.forward?

A.By default, only ~/.forward files of users in the group mailq are processed while all other user's ~/
.forward files are ignored.
B.As ~/.forward is owned by the MTA and not writable by the user, it must be edited using the editaliases command.
C.When configured correctly ~/.forward can be used to forward each incoming mail to one or more other recipients.
D.Using ~/.forward, root may configure any email address whereas all other users may configure only their own addresses.
E.After editing ~/.forward the user must run newaliases to make the mail server aware of the changes.

Question 93

Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?

A.find -type suid -username root -d /usr
B.find -user root +mode +s /usr
C.find /usr -uid 0 -perm +4000
D.find /usr -ls \*s\* -u root
E.find /usr -suid -perm +4000

Question 94

Which of the following fields are available in the standard format of both the global /etc/crontab file as well as in user-specific crontab files? (Choose two.)

A.Year
B.Minute
C.Username
D.Effective group ID
E.Command

Correct Answer: B,E

The standard format of both the global /etc/crontab file and user-specific crontab files consists of six fields separated by spaces or tabs. The first five fields indicate when to execute the command that is specified in the sixth field. The fields are:
* Minute: The minute of the hour (0-59) when the command should run.
* Hour: The hour of the day (0-23) when the command should run.
* Day of month: The day of the month (1-31) when the command should run.
* Month: The month of the year (1-12 or Jan-Dec) when the command should run.
* Day of week: The day of the week (0-7 or Sun-Sat, with 0 or 7 representing Sunday) when the command should run.
* Command: The command or script to execute.
For example, the following entry in a crontab file will run the command /usr/bin/backup.sh every day at 2:30 AM:
30 2 * * * /usr/bin/backup.sh
The global /etc/crontab file has an additional field between the fifth and sixth fields, which is:
* Username: The name of the user who will execute the command.
For example, the following entry in the /etc/crontab file will run the command /usr/bin/apt update as the root user every hour:
0 * * * * root /usr/bin/apt update
The other fields in the options are not part of the standard format of crontab files:
* Year: This field is not supported by the standard cron daemon, but it may be available in some implementations, such as the Vixie cron. It would specify the year (1970-2099) when the command should run, and it would be placed after the month field.
* Effective group ID: This field is not supported by any cron implementation, and it would not make sense to specify the group ID of the user who will execute the command, since it can be derived from the user ID.
References:
* LPIC-1 Exam 102 Objectives, Topic 107: Administrative Tasks, Subtopic 107.2: Automate system administration tasks by scheduling jobs, Weight: 4, Key Knowledge Areas: Use cron and systemd timers to run jobs at regular intervals and to use anacron to manage system cron jobs. Objective: Use cron to run jobs at regular intervals.
* LPIC-1 Exam 102 Learning Materials, Topic 107: Administrative Tasks, Subtopic 107.2: Automate system administration tasks by scheduling jobs, Section 107.2.1: cron, Page 18-20.

Question 95

What is true about the following command?
nmcli device wifi connect WIFIoI

A.NetworkManager returns an error because WIFIoI is an invalid wifi device.
B.NetworkManager opens a new public hotspot with the SSID WIFIoI.
C.NetworkManager returns an error in case the connection WIFIoI does not exist.
D.NetworkManager creates a new wifi connection WIFIoI and activates it.
E.NetworkManager creates an unconfigured new virtual network interface named WIFIoI.

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