CompTIA Updated XK0-005 Exam Questions and Answers by zakaria

The setfacl -m u:Oliver:rwx /cloud_users command modifies the ACL (Access Control List) for the directory cloud_users, granting the user Oliver read, write, and execute permissions. This is the correct syntax for assigning specific permissions to a user.

Step-by-Step Comprehensive Detailed Explanation:

Command Explanation:

systemctl restart networkd restarts the network service to apply changes. The networkd service is responsible for managing network configurations in systems using systemd-networkd.

Why Other Options are Incorrect:

B: Enables the service to start on boot but does not apply immediate changes.

C: Displays the status but does not apply changes.

D: isolate changes the target (runlevel) and does not directly affect network configurations.

References:

CompTIA Linux+ Study Guide, Chapter on Networking Services

man systemctl

After installing a new version of a package that includes a new version of the corresponding service file, the systemct1 daemon-reload command must be issued first in order to use the new version of the service file. This command will reload the systemd manager configuration and read all unit files that have changed on disk. This will ensure that systemd recognizes the new service file and applies its settings correctly. The systemct1 status command will display information about a service unit, but it will not reload the configuration. The systemct1 stop command will stop a service unit, but it will not reload the configuration. The systemct1 reinstall command does not exist. References: CompTIA Linux+ (XK0-005) Certification Study Guide, Chapter 17: System Maintenance and Operation, page 518.

To enable root login over SSH, the administrator must edit the /etc/ssh/sshd_config file, which configures the SSH daemon. The PermitRootLogin directive should be set to yes to allow root login. After making this change, the SSH daemon must be restarted for the changes to take effect.