LPIC-1: System Administrator 102-500 Online Free Test

Many IT professionals are finding it hard to pass the Lpi 102-500 exam. It’s a challenging task, but that alone should not make you not showcase your skills. It would be best if you considered getting yourself a solid 102-500 prep questions to enable you to pass the 102-500 exam. Pdfprep offers the best Lpi 102-500 prep questions that have been carefully crafted to resemble the LPI Level 1 exam. If you use the Pdfprep 102-500 prep questions, you get the assurance of success in your first trial of the Lpi exam.

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

find /usr -uid 0 -perm +4000

find -user root +mode +s /usr

find -type suid -username root -d /usr

find /usr -ls *s* -u root

find /usr -suid -perm +4000

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2. Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

ssh --port 2222 example.com

ssh -p 2222 example.com

ssh -o Port=2222 example.com

ssh -o GatewayPort=2222 example.com

ssh example.com:2222

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3. CORRECT TEXT

The presence of what file will temporarily prevent all users except root from logging into the system? (Specify the full name of the file, including path.)

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4. Which configuration file would be edited to change default options for the OpenSSH server?

/etc/ssh/sshd_config

/etc/ssh/ssh

/etc/ssh/server

/etc/ssh/ssh_config

/etc/ssh/ssh_server

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5. 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

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6. 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.

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7. Which of the following commands can be used to limit the amount of memory a user may use?

umask

usermod

ulimit

passwd

chage

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8. CORRECT TEXT

With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)

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9. Which configuration file would be edited to change the default options for outbound SSH sessions?

/etc/ssh/sshd_config

/etc/ssh/ssh

/etc/ssh/client

/etc/ssh/ssh_config

/etc/ssh/ssh_client

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10. 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

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11. CORRECT TEXT

On a Linux system with shadow passwords enabled, which file in the file system contains the password hashes of all local users? (Specify the full name of the file, including path.)

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12. Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?

sshd

ssh-agent

ssh-keygen

ssh-add

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13. 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

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14. CORRECT TEXT

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

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15. Which of the following commands displays all environment and shell variables?

getargs

lsenv

ls

env

lsshell

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16. CORRECT TEXT

What is the top-level directory which contains the configuration files for CUPS? (Specify the full path to the directory.)

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17. Which of the following commands configure network interfaces based on the system’s existing distribution-specific configuration files? (Choose two.)

ifconf

ifdown

ifpause

ifstart

ifup

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18. Which of the following tasks can the date command accomplish? (Choose two.)

Set the system’s date and time.

Set the system’s date but not the time.

Calculate the time span between two dates.

Print a calendar for a month or a year.

Display time in a specific format.

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19. CORRECT TEXT

Which command included in NetworkManager is a curses application which provides easy acces to the NetworkManager on the command line? (Specify only the command without any path or parameters.)

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20. 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.

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21. Given the following excerpt of the sudo configuration:

jane ANY=NOPASSWD: /bin/kill, /bin/id, PASSWD: /sbin/fdisk

Which of the following statements are true? (Choose three.)

Jane can run /bin/id only after specifying her password.

Jane can run /sbin/fdisk after specifying root’s password.

Jane can run /sbin/fdisk after specifying her password.

Jane can run /bin/kill without specifying a password.

Jane can run /bin/id without specifying her password.

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22. Which of the following features are provided by SPICE? (Choose two.)

Connecting local USB devices to remote applications.

Accessing graphical applications on a remote host.

Replacing Xorg as local X11 server.

Downloading and locally installing applications from a remote machine.

Uploading and running a binary program on a remote machine.

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23. Which of the following commands can identify the PID od a process which opened a TCP port?

ptrace

strace

debug

lsof

nessus

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24. Which of the following commands lists all queued print jobs?

lpd

lpr

lp

lsq

lpq

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25. 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.

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26. Which configuration file contains the default options for SSH clients?

/etc/ssh/sshd_config

/etc/ssh/ssh

/etc/ssh/ssh_config

/etc/ssh/client

/etc/ssh/ssh_client

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

nmcli ethernet

nmcli device

nmcli wifi

nmcli address

nmcli connection

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28. CORRECT TEXT

Which command included in systemd supports selecting messages from the systemd journal by criteria such as time or unit name? (Specify only the command without any path or parameters.)

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29. 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.

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30. Which option in the chrony configuration file changes the initial interval of polls to a NTP server in order to speed up the initial synchronization?

iburst

quickstart

fast

fsync

flood

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

6

14

30

62

126

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32. Which of the following comparison operators for test work on elements in the file system? (Choose two.)

Cz

Ceq

Cd

Cf

Clt

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33. 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.

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34. 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.)

Year

Minute

Username

Effective group ID

Command

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35. 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”

export ALL_MESSAGES=“pt”

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36. 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)

The path to the user’s home directory

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37. What output is produced by the following command sequence?

echo ‘1 2 3 4 5 6’ | while read a b c; do

echo result $c $b $a;

done

result: 6 5 4

result: 1 2 3 4 5 6

result: 3 4 5 6 2 1

result: 6 5 4 3 2 1

result: 3 2 1

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38. 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.

Timer units only exist in the system scope and are not available for users.

Each systemd timer unit controls a specific systemd service unit.

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39. Which of the following statements about sytemd-journald are true? (Choose three.)

It is incompatible with syslog and cannot be installed on a system using regular syslog.

It only processes messages of systemd and not messages of any other tools.

It can pass log messages to syslog for further processing.

It maintains metadata such as _UID or _PID for each message.

It supports syslog facilities such as kern, user, and auth.

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

systemctl-timer show

timectl list

systemctl Ct

systemctl list-timers

timeq

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

SMTP

POP3

NTP

IMAP

LDAP

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42. CORRECT TEXT

Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

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43. Which of the following changes may occur as a consequence of using the command ip? (Choose three.)

Network interfaces may become active or inactive.

New name servers may be added to the resolver configuration.

The system’s host name may change.

IP addresses may change.

The routing table may change.

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44. 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/maillogmail,crit@logger.example.org

mail.*/var/log/maillogmail.critsyslog://logger.example.org

mail/var/log/maillogmail.crit@logger.example.org

mail.*/var/log/maillogmail.crit@logger.example.org

mail */var/log/maillogmail crit@logger.example.org

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45. What is true about the Hop Limit field in the IPv6 header?

The field is not changed during the transport of a package.

The field is transmitted within a hop-by-hop extension header.

Each router forwarding the packet increases the field’s value.

Each router forwarding the packet decreases the field’s value.

For multicast packages, the field’s value is always 1.

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46. Which command makes the shell variable named VARIABLE visible to subshells?

export $VARIABLE

export VARIABLE

set $VARIABLE

set VARIABLE

env VARIABLE

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47. Which of the following files, when existing, affect the behavior of the Bash shell? (Choose TWO correct answers.)

~/.bashconf

~/.bashrc

~/.bashdefaults

~/.bash_etc

~/.bash_profile

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48. Which command allows you to make a shell variable visible to subshells?

export $VARIABLE

export VARIABLE

set $VARIABLE

set VARIABLE

env VARIABLE

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49. 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.

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50. 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.

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51. 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

IF

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52. Which of the following configuration files should be modified to set default shell variables for all users?

/etc/bashrc

/etc/profile

~/.bash_profile

/etc/.bashrc

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

env

set

env -a

echo $ENV

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54. When the command echo $$ outputs 12942, what is the meaning of 12942?

It is the process ID of the echo command.

It is the process ID of the current shell.

It is the process ID of the last command executed.

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

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55. How can the existing environment variable FOOBAR be suppressed for the execution of the script./myscript only?

unset -v FOOBAR;./myscript

set -a FOOBAR="";./myscript

env -u FOOBA

/myscript

env -i FOOBA

/myscript

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

CASE

FROM

WHERE

IF

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57. Which of the following commands puts the output of the command date into the shell variable mydate?

mydate="$(date)"

mydate="exec date"

mydate="$((date))"

mydate="date"

mydate="${date}"

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58. You are looking into a new script you received from your senior administrator. In the very first line you notice a #! followed by a file path.

This indicates that:

The file at that location was used to make the script.

This script provides identical functionality as the file at that location.

This script will self-extract into a file at that location.

The program at that location will be used to process the script.

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59. What keyword is missing from this code sample of a shell script?

____ i in *.txt; do

echo $i

done

for

loop

until

while

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60. Which of the following SQL statements will select the fields name and address from the contacts table?

SELECT (name, address) FROM contacts;

SELECT (name address) FROM contacts;

SELECT name, address FROM contacts;

SELECT name address FROM contacts;

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61. CORRECT TEXT - (Topic 1)

What command displays all aliases defined in the current shell? (Specify the command without any path information)

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62. What output will the following command sequence produce?

echo '1 2 3 4 5 6' | while read a b c; do

echo result: $c $b $a;

done

result: 3 4 5 6 2 1

result: 1 2 3 4 5 6

result: 6 5 4

result: 6 5 4 3 2 1

result: 3 2 1

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63. Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?

SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;

SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;

COUNT(SELECT order_type FROM orders);

SELECT COUNT(*) FROM orders ORDER BY order_type;

SELECT AUTO_COUNT FROM orders COUNT order_type;

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64. CORRECT TEXT - (Topic 1)

What word is missing from the following SQL statement?

__________ count(*) from tablename;

(Please specify the missing word using lower-case letters only.)

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65. What benefit does an alias in bash provide?

It provides faster lookups for commands in the system directory.

It creates a local copy of a file from another directory.

It hides what command you are running from others.

It allows a string to be substituted for the first word of a simple command.

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66. CORRECT TEXT - (Topic 1)

Which directory in /etc is used to keep a sample copy of files and directories for when a new user has a home directory created? (Please provide the full path)

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67. When the command echo $ outputs 1, which of the following statements is true?

It is the process ID of the echo command.

It is the process ID of the current shell.

It is the exit value of the command executed immediately before echo.

It is the exit value of the echo command.

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68. What output will the following command produce?

seq 1 5 20

1 6 11 16

1 5 10 15

1 2 3 4

2 3 4 5

5 10 15 20

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69. What output will the command seq 10 produce?

A continuous stream of numbers increasing in increments of 10 until stopped.

The numbers 1 through 10 with one number per line.

The numbers 0 through 9 with one number per line.

The number 10 to standard output.

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70. CORRECT TEXT - (Topic 1)

What word is missing from the following SQL statement?

insert into tablename ________(909, 'text');

(Please specify the missing word using lower-case letters only.)

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71. What is the difference between the commands test -e path and test -f path?

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.

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72. After issuing:

function myfunction { echo $1 $2 ; }

in Bash, which output does:

myfunction A B C

Produce?

A B

A B C

A C

B C

C B A

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73. Which of the following is the best way to list all defined shell variables?

env

set

env -a

echo $ENV

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74. CORRECT TEXT

By default, the contents of which directory will be copied to a new user's home directory when the account is created by passing the -m option to the useradd command? (Specify the full path to the directory.)

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75. How is a display manager started?

It is started by a user using the command startx.

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

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

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

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76. CORRECT TEXT

What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

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77. Which of the following keywords can be used in the file /etc/resolv/conf? (Choose two.)

substitute

lookup

search

nameserver

method

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78. How does the ping command work by default?

Is sends an ICMP Echo Request to a remote host and waits 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 TCP ACK response in return.

Is 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.

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79. Which of the following commands display the number of bytes transmitted and received via the eth0 network interface? (Choose two.)

route -v via eth0

ip stats show dev eth0

netstat -s -i eth0

ifconfig eth0

ip -s link show eth0

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80. 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 passed to the router 192.168.1.1 on eth0.

It would be directly transmitted on the device wlan0.

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81. Which of the following commands will delete the default gateway from the system’s IP routing table? (Choose two.)

ifconfig unset default

route del default

ip route del default

netstat -r default

sysctl ipv4.default_gw=0

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82. FILL BLANK

What command enables a network interface according to distribution-specific configuration, such as /etc/network/interfacesor /etc/sysconfig/network-scripts/ifcfg-eth0? (Specify only the command without any path or parameters.)

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83. What is true about NetworkManager on a Linux system that uses its distribution’s mechanisms to configure network interfaces? (Choose two.)

NetworkManager reconfigures all network interfaces to use DHCP unless they are specifically managed by NetworkManager.

NetworkManager must be explicitly enabled for each interface it should manage.

NetworkManager by default does not change interfaces which are already configured.

NetworkManager disables all interfaces which were not configured by NetworkManager.

NetworkManager can be configured to use the distribution’s network interface configuration.

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84. Which standardized TCP port is used by HTTPS services?

25

80

8080

443

636

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85. Which of the following environment variables can be defined in locale.conf? (Choose two.)

LC_ALL

LC_USERNAME

LC_UTF8

LC_GEOGRAPHY

LC_TIME

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86. Which of the following commands sets the system’s time zone to the Canadian Eastern Time?

localegen -t -f /usr/share/zoneinfo/Canada/Eastern > /etc/locate.tz

tzconf /etc/localtime

sysctl -w clock.tz=’Canada/Eastern’

modprobe tz_ca_est

ln -sf /usr/share/zoneinfo/Canada/Eastern /etc/localtime

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87. FILL BLANK

What option to useradd creates a new user’s home directory and provisions it with a set of standard files? (Specify only the option name without any values or parameters.)

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88. How can a specific user be prevented from scheduling tasks with at?

By adding the specific user to the /etc/at.allowfile.

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

By adding the specific user to the nojobs group.

By adding the specific user to the /etc/at.denyfile.

By executing the atd --deny[user] command.

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89. Which file contains the data of the last change of a user’s password?

/etc/gshadow

/etc/passwd

/etc/pwdlog

/var/log/shadow

/etc/shadow

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90. Which of the following fields can be found in the /etc/groupfile? (Choose two.)

The home directory of the group.

The list of users that belong to the group.

The name of the group.

The default group AC

The description of the group.

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91. Which of the following sections exists in a systemd timer unit?

[Events]

[Timer]

[cron]

[Schedule]

[Trigger]

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92. Which of the following getentinvocations lists all existing users?

getent homes

getent uids

getent passwd

getent users

getent logins

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93. Given the following user’s crontab entry:

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

When will the script /usr/local/bin/example.shbe 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

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94. If neither 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 cron 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.

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95. What is the purpose of the iconv command?

It converts bitmap images from one format to another such as PNG to JPE

It verifies that the root directory tree compiles to all conventions from the Filesystem Hierarchy Standard (FHS).

It converts files from one character set to an other.

It changes the mode of an inode in the ext4 filesystem.

It displays additional meta information from icon files ending in .ico.

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96. Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?

*

­

s

#

x

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97. What does the term Braille Display refer to?

A standardized high contract graphical theme for desktop applications?

A Linux desktop environment similar to KDE and GNOM

A legacy display technology superseded by LC

A physical representation of characters using small dots.

A standard file format for data exchange, similar to XM

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98. FILL BLANK

Which environment variable is used by an X11 client to determine the X Server to connect to? (Specify only the variable name without any preceding commands or values.)

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99. Which of the following tasks are handled by a display manager like XDM or KMD? (Choose two.)

Configure additional devices like new monitors or projectors when they are attached.

Start and prepare the desktop environment for the user.

Create an X11 configuration file for the current graphic devices and monitors.

Lock the screen when the user was inactive for a configurable amount of time.

Handle the login of a user.

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

KDE

X11

Xfce

SPICE

XDMCP

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101. FILL BLANK

Which command is used to set the hostname of the local system? (Specify only the command without any path or parameters.)

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

2001:db8:0g21::1

2001::db8:4581::1

2001:db8:3241::1

2001%db8%9990%%1

2001.db8.819f..1

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103. FILL BLANK

What command, depending on its options, can display the open TCP connections, the routing tables, as well as network interface statistics? (Specify only the command without any path or parameters.)

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104. FILL BLANK

Which command included in NetworkManager is a curses application which provides easy acces to the NetworkManager on the command line? (Specify only the command without any path or parameters.)

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

dnsq

hostname

dig

dnslookup

zoneinfo

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106. Which of the following statements is valid in the file /etc/nsswitch.conf?

multi on

192.168.168.4 dns-server

namespaces: net mount procs

include /etc/nsswitch.d/

hosts: files dns

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107. Which of the following connection types, as seen in nmcli connection show, may exist in NetworkManager? (Choose three.)

tcp

ethernet

wifi

ipv6

bridge

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108. On a Linux workstation, the route command takes a long time before printing out the routing table.

Which of the following errors does that indicate?

The local routing information may be corrupted and must be re-validated using a routing protocol.

One of the routers in the routing table is not available which causes the automatic router failure detection mechanism (ARF-D) to wait for a timeout.

There may accidentally be more than one default router in which case a default router election has to be done on the network in order to choose one router as the default.

The Linux Kernel Routing Daemon (LKRD) is not running and should be started using its init script or systemd unit.

DNS resolution may not be working as route by default tries to resolve names of routers and destinations and may run into a timeout.

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109. What is true about the Hop Limit field in the IPv6 header?

The field is not changed during the transport of a package.

The field is transmitted within a hop-by-hop extension header.

Each router forwarding the packet increases the field’s value.

Each router forwarding the packet decreases the field’s value.

For multicast packages, the field’s value is always 1.

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

nmcli ethernet

nmcli device

nmcli wifi

nmcli address

nmcli connection

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111. Which of the following changes may occur as a consequence of using the command ip? (Choose three.)

Network interfaces may become active or inactive.

New name servers may be added to the resolver configuration.

The system’s host name may change.

IP addresses may change.

The routing table may change.

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

B. 14

C. 30

D. 62

E. 126

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113. Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose three.)

10.0.0.0/8

127.0.0.0/8

169.255.0.0/16

172.16.0.0/12

192.168.0.0/16

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114. Which of the following commands configure network interfaces based on the system’s existing distribution-specific configuration files? (Choose two.)

ifconf

ifdown

ifpause

ifstart

ifup

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115. 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.

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116. Which of the following information is stored in /etc/shadowfor 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)

The path to the user’s home directory

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

systemctl-timer show

timectl list

systemctl Ct

systemctl list-timers

timeq

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118. Which of the following tasks can the date command accomplish? (Choose two.)

Set the system’s date and time.

Set the system’s date but not the time.

Calculate the time span between two dates.

Print a calendar for a month or a year.

Display time in a specific format.

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119. FILL BLANK

Which file, if present, must contain all users that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)

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120. 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.

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121. 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.

After changing this file, newtzconfighas to be run to make the changes effective.

It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.

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122. 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.

Timer units only exist in the system scope and are not available for users.

Each systemd timer unit controls a specific systemd service unit.

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123. 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.)

Year

Minute

Username

Effective group ID

Command

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124. 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”

export ALL_MESSAGES=“pt”

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