XK0-005 RELIABLE STUDY MATERIALS | EXAM XK0-005 QUIZZES

XK0-005 Reliable Study Materials | Exam XK0-005 Quizzes

XK0-005 Reliable Study Materials | Exam XK0-005 Quizzes

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CompTIA Linux+ certification exam has been updated to include modern technologies such as cloud computing, containerization, and virtualization. This ensures that candidates are up-to-date with current industry trends and have the skills necessary to work with the latest Linux-based technologies. The updated exam also covers security and compliance requirements, which are crucial in today's cybersecurity landscape.

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CompTIA Linux+ Certification Exam Sample Questions (Q112-Q117):

NEW QUESTION # 112
Joe, a user, is unable to log in to the Linux system Given the following output:

Which of the following command would resolve the issue?

  • A. chage -E 90 joe
  • B. passwd -u joe
  • C. usermod -s /bin/bash joe
  • D. pam_tally2 -u joe -r

Answer: D

Explanation:
Explanation
Based on the output of the image sent by the user, Joe is unable to log in to the Linux system because his account has been locked due to too many failed login attempts. The pam_tally2 -u joe -r command will resolve this issue by resetting Joe's failed login counter to zero and unlocking his account. This command uses the pam_tally2 module to manage user account locking based on login failures. The usermod -s /bin/bash joe command will change Joe's login shell to /bin/bash, but this will not unlock his account. The passwd -u joe command will unlock Joe's password if it has been locked by passwd -l joe, but this will not reset his failed login counter or unlock his account if it has been locked by pam_tally2. The chage -E 90 joe command will set Joe's account expiration date to 90 days from today, but this will not unlock his account or reset his failed login counter. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 18: Securing Linux Systems, page 537.


NEW QUESTION # 113
A Linux administrator is troubleshooting an issue in which an application service failed to start on a Linux server. The administrator runs a few commands and gets the following outputs:

Based on the above outputs, which of the following is the MOST likely action the administrator should take to resolve this issue?

  • A. Enable the logsearch.service and restart the service.
  • B. Update the OnCalendar configuration to schedule the start of the logsearch.service.
  • C. Update the KillSignal configuration for the logsearch.service to use TERM.
  • D. Increase the TimeoutStartUSec configuration for the logsearch.sevice.

Answer: D

Explanation:
Explanation
The administrator should increase the TimeoutStartUSec configuration for the logsearch.service to resolve the issue. The output of systemct1 status logsearch.service shows that the service failed to start due to a timeout.
The output of cat /etc/systemd/system/logsearch.service shows that the service has a TimeoutStartUSec configuration of 10 seconds, which might be too short for the service to start. The administrator should increase this value to a higher number, such as 30 seconds or 1 minute, and then restart the service. The other options are incorrect because they are not related to the issue. The service is already enabled, as shown by the output of systemct1 is-enabled logsearch.service. The service does not use an OnCalendar configuration, as it is not a timer unit. The service does not use a KillSignal configuration, as it is not being killed by a signal. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 14: Managing Processes and Scheduling Tasks, pages 434-435.


NEW QUESTION # 114
An operations engineer is planning to start a container running a PostgreSQL database. The engineer wants the container to start automatically at system startup, mount the /home/db directory as /var/lib/postgresql inside the container, and expose port 5432 to the OS. Which of the following commands should the engineer run to achieve this task?

  • A. docker run -d --init --restart --publish 5432:5432 --workdir /home/db:/var/lib/postgresql postgresql:12
  • B. docker run -d --restart -p 5432:5432 --volume /var/lib/postgresql:/home/db postgresql:12
  • C. docker run -d --attach --platform 5432:5432 --volume /home/db:/var/lib/postgresql postgresql:12
  • D. docker run -d --restart always -p 5432:5432 -v /home/db:/var/lib/postgresql postgresql:12

Answer: D

Explanation:
The command docker run -d --restart always -p 5432:5432 -v /home/db:/var/lib/postgresql postgresql:12 ensures that the PostgreSQL container is started in detached mode (-d), it restarts automatically on system startup (--restart always), mounts the host directory /home/db to
/var/lib/postgresql, and exposes port 5432. This is a typical setup for running a database in a Docker container.


NEW QUESTION # 115
An administrator deployed a Linux server that is running a web application on port 6379/tcp.
SELinux is in enforcing mode based on organization policies.
The port is open on the firewall.
Users who are trying to connect to a local instance of the web application receive Error 13, Permission denied.
The administrator ran some commands that resulted in the following output:

Which of the following commands should be used to resolve the issue?

  • A. semanage port -l -t http_port_tcp 6379
  • B. semanage port -a http_port_t -p top 6379
  • C. semanage port -a -t http_port_t -p tcp 6379
  • D. semanage port -d -t http_port_t -p tcp 6379

Answer: C

Explanation:
The command semanage port -a -t http_port_t -p tcp 6379 adds a new port definition to the SELinux policy and assigns the type http_port_t to the port 6379/tcp. This allows the web application to run on this port and accept connections from users. This is the correct way to resolve the issue. The other options are incorrect because they either delete a port definition (-d), use the wrong protocol (top instead of tcp), or list the existing port definitions (-l).


NEW QUESTION # 116
What is the main objective when using Application Control?

  • A. To filter out specific content.
  • B. To assist the firewall blade with handling traffic.
  • C. Ensure security and privacy of information.
  • D. To see what users are doing.

Answer: C

Explanation:
Explanation
The main objective when using Application Control is to ensure the security and privacy of information.
Application Control is a security practice that blocks or restricts unauthorized applications from executing in ways that put data at risk. The control functions vary based on the business purpose of the specific application, but the main objective is to help ensure the privacy and security of data used by and transmitted between applications1. Application Control can also prevent malware, untrusted, or unwanted applications from running on the network, reducing the risks and costs associated with data breaches1. Application Control can also improve the overall network stability and performance by eliminating unnecessary or harmful applications1.
Application Control is not mainly used to filter out specific content, although it can be combined with other technologies such as URL filtering or content filtering to achieve that goal. Application Control is not mainly used to assist the firewall blade with handling traffic, although it can be integrated with firewall policies to enforce granular access rules based on applications. Application Control is not mainly used to see what users are doing, although it can provide visibility and reporting on application usage and activity.


NEW QUESTION # 117
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