Valid 102-500 Exam Dumps are Your best Choice to Pass

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January 11, 2025

If you are looking to take your career in LPIC-1: System Administrator to the next level, the 102-500 certification is an excellent option. To prepare for the 102-500 exam, you need to have a deep understanding of Lpi products and how to configure them. The best way to prepare for the exam is by using 102-500 exam dumps questions, which give you a better understanding of the format of the exam. This will help you become familiar with the types of questions you can expect on the actual 102-500 exam, and it will give you a chance to practice your test-taking skills. Test free online 102-500 exam dumps questions below.

Page 1 of 7

1. Which of the following are requirements in order to run a shell script like a regular command from anywhere in the filesystem? (Choose THREE correct answers.)

The user issuing the command must be in the group script.

The script file must be found in the $PAT

The script file must have the executable permission bit set.

The script must begin with a shebang-line (#!) that points to the correct interpreter.

The file system on which the script resides must be mounted with the option scripts.

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.

GIDs have precedence over UIDs, therefore the group is available while the user isn’t.

3. Which command can be used to delete a group from a Linux system?

groupdel

groupmod

groups

groupedit

4. If neigher cron, allow nor cron, deny exist in /etc/, which of the following is true?

Without additional configuration, all users may create user specific crontabs.

Without additional configuration, only root may create user specific crontabs.

The aon daemon will refuse to start and report missing files in the system's logfile.

When a user creates a user specific crontab the system administrator must approve it explicitly.

The default settings of /etc/crond.conf define whether or not user specific crontabs are generally allowed or not.

5. What is the main difference between the batch and at commands?

The batch command will run multiple times.The at command will only run once.

The batch command will run when system load is low. The at command runs at a specific time.

The at command reads commands from standard input. The batch command requires a command line argument.

The at command e-mails results to the user. The batch command logs results to syslog.

6. What is NOT contained in the locale setting of the operating system?

currency symbol

language

timezone

thousands separator

7. Which file contains a set of services and hosts that will be allowed to connect to the server by going through a TCP Wrapper program such as tcpd? (Specify the full name of the file, including path.) https://lh3.googleusercontent.com/-5cd-clmKnbk/AAAAAAAAAAI/AAAAAAAAADM/-SXesH19Ido/s46-c-k-no/photo.jpg

8. Which port is the default server port for the HTTPS protocol? (Specify the port number using digits.)

9. How many IP-addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/28? (Specify the number only without any additional information.)

10. Given the following user's cronlab entry:

15 14 * * 1-5 /usr/local/bin/example.sh be executed?

When will the script /usr/local/bin/example.sh be executed?

At 14:15 local time. January till May.

At 15:14 local time, 1st to 5th day of month.

At 14:15 local time, February till June.

At 14:15 local time, 1st to 5th day of month.

At 14:15 local time, Monday to Friday.

Page 2 of 7

11. Which keyword must be listed in the hosts option of the Name Service Switch configuration file in order to make host lookups consult the /etc/hosts file?

12. Which commands can you use to change a user's account aging information? (Choose THREE correct answers.)

usermod

passwd

chattr

chage

chsh

13. Which of the following protocols is designed to access the video card output of a virtual machine?

KDE

X11

Xfce

SPICE

XDMCP

14. How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

The /etc/crontab file can specify a year field.

A normal crontab file must be installed with the crontab command.

A normal crontab file allows for environment variable substitution.

The /etc/crontab file has a user field for commands.

15. Which command is used to set restrictions on the size of a core file that is created for a user when a program crashes?

core

edquota

ulimit

quota

16. What is the purpose of the file /etc/profile?

It contains the welcome message that is displayed after login.

It contains security profiles defining which users are allowed to log in.

It contains environment variables that are set when a user logs in.

It contains default application profiles for users that run an application for the first time.

17. Which parameter is missing in the command

Ip link act ___ dec etho

To activate the previously inactive network interface ethO? (Specrfy the parameter only without any command, path or additional options)

18. Why is the correct configuration of a system's time zone important?

A. Because the conversion of Unix timestamps to local time relies on the time zone configuration.

B. Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created.

C. Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.

D. Because NTP chooses servers nearby based on the configured time zone.

19. A French user has installed the French language pack, but currencies are still being displayed with a leading '$' sign in his spreadsheets.

What must be done to fix this?

Alter the locale.

Set the timezone correctly.

Edit /etc/currency.

Reinstall the French language pack.

20. Which of the following words is used to restrict the records that are returned from a SELECT query based on a supplied criteria for the values in the records?

LIMIT

FROM

WHERE

Page 3 of 7

21. Why is /etc/shadow not world readable if the passwords are stored in an encrypted fashion?

The encrypted passwords are still subject to brute force attacks.

This is just for historical reasons.

There is other information in the file that needs to be kept secret.

The passwords can be decrypted by anyone with root access.

22. What is true about the file .profile in a user's home directory?

It must be executable.

It must call the binary of the login shell.

It must use a valid shell script syntax.

It must start with a shebang.

It must be readable for its owner only.

23. The correct crontab entry to execute the script chklog three times per month between 3 p.m. and 5 p.m.:

A. * 3,4,5 1 * * chklog

B. 3 3,4,5 1 * * chklog

C. 3 15,16,17 * * * chklog

D. 0 15,16,17 1 * * chklog

E. * 15,16,17 1 * * chklog

24. Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)

127.0.0.0/8

10.0.0.0/8

169.255.0.0/16

172.16.0.0/12

192.168.0.0/16

25. What is true about the ntpdate command?

It is the primary management command for the NTP time server.

It updates the local system's date (i.e. day, month and year) but not the time (i.e. hours, minutes, seconds).

It queries one or more NTP time servers and adjusts the system time accordingly.

It sends the local system time to one or many remote NTP time servers for redistribution.

It can be used by any user to set the user clock independently of the system clock.

26. What the echo $$ command?

The process ID of the current shell.

The process ID for the following command.

The process ID of the last command executed.

The process ID of the last command which has been placed in the background.

The process ID of the echo command.

27. How can a specific user be prevented from scheduling tasks with a i.?

By adding the specific user to the /etc/ at,allow file.

By adding the specific user to the [deny] section in the /etc./atd.conf file.

By adding the specific user to the nojoba group.

By adding the specific user to the /etc/at.deny file.

By executing the atd Cdeny [user] command.

28. On a system using shadowed passwords, the most correct permissions for /etc/passwd are ___ and the most correct permissions for /etc/shadow are _________.

-rw-r-----, -r--------

-rw-r--r--, -r--r--r--

-rw-r--r--, -r--------

-rw-r--rw-, -r-----r--

-rw-------, -r--------

29. What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

route del default

ifconfig unset default

netstat -r default

ip route del default

sysctl ipv4.default_gw=0

30. What can be specified with useradd? (Choose two.)

Commands the user can run using sudo.

The absolute path to the user’s home directory.

Which printers are available for the new user.

The SSH keys used to login to the new account.

The numeric user ID (UID) of the user.

Page 4 of 7

31. Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?

tcpd

inetd

fingerd

mountd

xinetd

32. Which of the following programs can be used to determine the routing path to a given destination?

dig

netstat

ping

route

traceroute

33. Which of the following commands lists all defined variables and functions within Bash?

env

set

env -a

echo $ENV

34. Which TWO statements about crontab are true?

A. Every user may have their own crontab.

B. Changing a crontab requires a reload/restart of the cron daemon.

C. The cron daemon reloads crontab files automatically when necessary.

D. hourly is the same as "0 * * * *".

E. A cron daemon must run for each existing crontab.

35. What command will display the group names and GIDs to which a user belongs? (Provide only the command name with or without path information)

36. After issuing:

function myfunction { echo $1 $2 ; }

in Bash, which output does:

myfunction A B C

Produce?

ABC

CBA

37. Which of Ihe following commands sets the system's time zone to the Canadian Eastern Time?

A)

Option A

Option B

Option C

Option D

Option E

38. Which command will set the local machine's timezone to UTC?

cat UTC > /etc/timezone

ln -s /usr/share/zoneinfo/UTC /etc/localtime

date --timezone=UTC

mv /usr/timezone/UTC /etc

39. Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)

substitute

nameserver

lookup

method

40. Which of the following is a valid IPv6 address?

2001:db8:3241::1

2001::db8:4581::1

2001:db8:0g41::1

2001%db8%9990%%1

2001.db8.819f..1

Page 5 of 7

41. Of the ways listed, which is the best way to temporarily suspend a single user's ability to interactively login?

Add the user name to /etc/nologin.

Change the user's password.

Change the user name in /etc/passwd.

Use change to expire the user account.

Place the command logout in the user's profile.

42. What is the conventional purpose of Linux UIDs that are lower than 100?

They are reserved for super user accounts.

They are reserved for the system admin accounts.

They are reserved for system accounts.

They are unused, aside from 0, because they are targets of exploits.

They are used to match with GIDs in grouping users.

43. Which of the following can the chage command NOT change?

The number of days since January 1, 1970 after which the user's account will no longer be accessible.

The number of days since January 1, 1970 after which the password can change.

The number of days since January 1, 1970 since the password was last changed.

The maximum number of days during which a password is valid.

The number of days of inactivity after a password has expired before the account is locked.

44. How does the ping command work by default?

It sends an ICMP Echo RequesI lo a remote host and warts to receive an ICMP Echo Response in return.

It sends an ARP request to a remote host and waits to receive an ARP response in return.

It sends a TCP SYN packet to a remote host and waits to receive an TCPACK response in return.

It sends a broadcast packet to all hosts on the net and waits to receive, among others, a response from the target system.

It sends a UDP packet to port 0 of the remote host and waits to receive a UDP error response in return.

45. Each entry in a crontab must end with what character?

Tab

Space

Backslash

Newline

46. On a machine running serval X servers. how do programs identify the different instances of theX11 server?

By a fixed UUID that is defined in the X11 configuration file.

By a display name like :1.

By the name of the user that turns the X server like x11: bob.

By a device name like /dov/x11/xeorvore/1.

By a unique IPv6 address from the fc80: /64 subnet.

47. Which of the following nmcli subcommands exist? (Choose two.)

nmcli ethernet

nmcli device

nmcli wifi

nmcli address

nmcli connection

48. Which command, available with all MTAs, is used to list the contents of the MTA's mail queue? (Specify ONLY the command without any path or parameters.)

49. Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)

--from=

--since=

--until=

--upto=

--date=

50. When trying to unmount a device it is reported as being busy.

Which of the following commands could be used to determine which process is causing this?

debug

lsof

nessus

strace

traceroute

Page 6 of 7

51. How is a display manager started?

A. It is started by a user using the command startx.

B. It is started like any other system service by the init system.

C. It is started by inetd when a remote hosts connects to the X11 port.

D. It is started automatically when a X11 user logs in to the system console.

52. 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

53. What is pool.ntp.org?

A deprecated feature for maintaining system time in the Linux kernel

A website which provides binary and source packages for the OpenNTPD project

A virtual cluster of various timeservers

A community website used to discuss the localization of Linux

54. What is a purpose of an SSH host key?

It must be sent by any SSH client in addition to a user key in order to identify the client's host.

It provides the server's identity information to connecting SSH clients.

It is the root key by which all user SSH keys must be signed.

It authenticates any user that logs into a remote machine from the key's host.

It is used by system services like cron, syslog or a backup job to automatically connect to remote hosts.

55. Which of the following commands can be used to convert text files in one character encoding to another character encoding?

cat

convert

iconv

utf2utf

56. Which of the following commands shows all active systemd timers?

systemctl-timer show

timectl list

systemctl Ct

systemctl list-timers

timeq

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

126

58. Which of the following may occur as a consequence of using the command ifconfig? (Choose THREE correct answers.)

New name servers may be added to the resolver configuration.

Network interfaces may become active or inactive.

The routing table may change.

IP addresses may change.

The system's host name may change.

59. After editing the TCP wrapper configuration to grant specific hosts access to a service. When do these changes become effective?

The new configuration becomes effective after restarting the respective service.

The new configuration becomes effective at the next system reboot.

The new configuration becomes effective when the last established connection to the service is closed.

The new configuration becomes effective after restarting the tcpd service.

The new configuration becomes effective immediately for all new connections.

60. What information related to a user account is modified using the change command?

Default ownership for new files

Group membership

Set of commands available to the user

Password expiry information

Default permissions for new files

Page 7 of 7

61. Which of the following fields can be found in the /etc/group file? (Choose THREE correct answers.)

The list of users that belong to the group.

The home directory of the group.

The name of the group.

The description of the group.

The password of the group.

62. 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.)

63. What entry can be added to the syslog.conf file to have all syslog messages generated by a system displayed on console 12?

*.* /dev/tty12

/var/log/messages | /dev/tty12

| /dev/tty12

syslog tty12

mail.* /dev/tty12

64. What is true regarding the file ~/.forward?

As it is owned by the MTA and not writable by the user, it must be edited using the editaliases command.

After editing ~/.forward the user must run newaliases to make the mail server aware of the changes.

Using ~/.forward, root may configure any email address whereas all other users may configure only their own addresses.

When configured correctly, ~/.forward can be used to forward each incoming mail to more than one other recipient.

65. An administrator wants to determine the geometry of a particular window in X, so she issues the

__________ -metric command and then clicks on the window.

66. Given the following routing table:

How would an outgoing packet to the destination 192.168.2.150 be handled?

It would be passed to the default router 192.168.178.1 on wlan0.

It would be directly transmitted on the device eth0.

It would be passed to the default router 255.255.255.0 on eth0.

It would be directly transmitted on the device wlan0.

It would be passed to the router 192.168.1.1 on eth0.

67. Which of the following options in the chrony configuration file define remote lime sources? (Choose TWO correct answers.)

Source

Clock

Remote

Pool

server

68. What is the purpose of TCP wrapper?

Manage and adjust bandwidth used by TCP services.

Bind a network service to a TCP port.

Encapsulate TCP messages in IP packets.

Add SSL support to plain text TCP services.

Limit access to a network service.

69. Which of the following is observed and corrected by a NTP client?

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.

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