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Security

Perform tasks connected to security administration – You should have some knowledge of how to review system configuration to make sure that host security is in line with the right local security policies;
Secure data with encryption – The test takers should know how to secure communication and data by using public key techniques.
Setup host security – The individuals should be able to set up a basic level of host security;

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The LPIC-1 Exam 102, Part 2 of 2, version 5.0 (102-500) certification exam is a valuable credential that is designed to validate the candidates' skills and knowledge level. The 102-500 certification exam is one of the high in demand industrial recognized credentials to prove your skills and knowledge level. With the Lpi 102-500 Certification Exam everyone can upgrade their skills and become competitive and updated in the market.

Lpi 102-500 Exam is an essential certification for IT professionals looking to build a career in Linux-based systems administration. With its comprehensive coverage of advanced Linux administration skills, the certification program provides candidates with the knowledge and skills needed to succeed in today's technology-driven workplace.

Lpi LPIC-1 Exam 102, Part 2 of 2, version 5.0 Sample Questions (Q24-Q29):

NEW QUESTION # 24
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.)

Answer:

Explanation:
server
Explanation:
The server option is used to configure a persistent association with a remote server or peer. It takes an argument that is either a host name or a numeric IP address of the NTP server. The ntpd daemon will periodically send NTP packets to the specified server and adjust the local clock according to the received responses. Multiple server options can be used to specify more than one NTP source. For example, the following lines in the /etc/ntp.conf file configure four external NTP sources:
server 0.asia.pool.ntp.org
server 0.oceania.pool.ntp.org
server 0.europe.pool.ntp.org
server 0.north-america.pool.ntp.org
Reference:
https://docs.ntpsec.org/latest/ntp_conf.html
https://vceguide.com/which-option-in-the-etc-ntp-conf-file-specifies-an-external-ntp-source-to-be-queried-for-time-information-2/
https://vceguide.com/which-option-in-the-etcntp-conf-file-specifies-an-external-ntp-source-to-be-queried-for-time-information/

NEW QUESTION # 25
FILL BLANK
Which parameter of the ssh command specifies the location of the private key used for login attempts?
(Specify only the option name without any values or parameters.)

Answer:

Explanation:
ssh-keygen

NEW QUESTION # 26
What the echo $$ command?

A. The process ID of the last command executed.
B. The process ID for the following command.
C. The process ID of the echo command.
D. The process ID of the current shell.
E. The process ID of the last command which has been placed in the background.

Answer: D

Explanation:
The echo command is a built-in Linux feature that prints out arguments as the standard output1. The echo command can take various options and arguments to display different types of information. One of the arguments that can be used with the echo command is $$, which represents the process ID (PID) of the current shell2. A process ID is a unique number that identifies a running process in the system. The current shell is the shell that is executing the echo command. For example, if you are using the Bash shell and run the following command:
echo $$
The output will show the PID of the Bash shell, such as:
1234
The echo
commandcanbeusefultocheckwhichshellyouareusing,ortofindoutthePIDofthecurrentshellfordebuggingormonitoringpurposes.Theecho command is different from the following commands:
echo $!: This command displays the PID of the last command executed in the background2. A background command is a command that runs without blocking the shell, allowing you to continue using the shell while the command executes. For example, if you run the following command:
sleep 10 &
This command will put the sleep command, which pauses the execution for 10 seconds, in the background. The output will show the PID of the sleep command, such as:
1 2345
If you then run the following command:
echo $!
The output will show the same PID of the sleep command, such as:
2345
echo $?: This command displays the exit status of the last command executed2. The exit status is a number that indicates whether the command was successful or not. A zero exit status means the command was successful, while a non-zero exit status means the command failed or encountered an error. For example, if you run the following command:
ls /home
This command will list the contents of the /home directory. If the command succeeds, the output will show the files and directories in the /home directory, such as:
alice bob charlie
If you then run the following command:
echo $?
The output will show the exit status of the ls command, which is zero, meaning the command was successful:
0
echo $0: This command displays the name of the current shell or script2. The name of the current shell is the name of the executable file that runs the shell, such as bash, zsh, ksh, etc. The name of the current script is the name of the file that contains the script, such as script.sh, script.py, etc. For example, if you are using the Bash shell and run the following command:
echo $0
The output will show the name of the current shell, such as:
bash
Reference:
2

NEW QUESTION # 27
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.)

Answer:

Explanation:
crontab

NEW QUESTION # 28
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

A. result: 6 5 4 3 2 1
B. result: 1 2 3 4 5 6
C. result: 3 4 5 6 2 1
D. result: 3 2 1
E. result: 6 5 4

Answer: C

NEW QUESTION # 29
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