NO.72 One leg of an LVM-mirrored volume failed due to the underlying physical volume, and a systems administrator is troubleshooting the issue. The following output has been provided:

Given this scenario, which of the following should the administrator do to recover this volume?

NO.73 A Linux system fails to start and delivers the following error message:

Which of the following commands can be used to address this issue?

NO.74 Which of the following commands is used to configure the default permissions for new files?

NO.75 A DevOps engineer needs to download a Git repository from https://git.company.com/admin/project.git. Which of the following commands will achieve this goal?

NO.76 A systems administrator is receiving tickets from users who cannot reach the application app that should be listening on port 9443/tcp on a Linux server.
To troubleshoot the issue, the systems administrator runs netstat and receives the following output:

Based on the information above, which of the following is causing the issue?

NO.77 A server is experiencing intermittent connection issues. Some connections to the Internet work as intended, but some fail as if there is no connectivity. The systems administrator inspects the server configuration:

Which of the following is MOST likely the cause of the issue?

NO.78 An administrator recently updated the BIND software package and would like to review the default configuration that shipped with this version. Which of the following files should the administrator review?

NO.79 A systems administrator created a new Docker image called test. After building the image, the administrator forgot to version the release. Which of the following will allow the administrator to assign the v1 version to the image?

NO.80 A systems administrator is tasked with preventing logins from accounts other than root, while the file /etc/nologin exists. Which of the following PAM modules will accomplish this task?

NO.81 An administrator installed an application from source into /opt/operations1/ and has received numerous reports that users are not able to access the application without having to use the full path /opt/operations1/bin/*. Which of the following commands should be used to resolve this issue?

NO.82 A systems administrator wants to back up the directory /data and all its contents to /backup/data on a remote server named remote. Which of the following commands will achieve the desired effect?

NO.83 Which of the following technologies can be used as a central repository of Linux users and groups?

NO.84 A systems administrator is notified that the mysqld process stopped unexpectedly. The systems administrator issues the following command:
sudo grep -i -r ‘out of memory’ /var/log
The output of the command shows the following:
kernel: Out of memory: Kill process 9112 (mysqld) score 511 or sacrifice child.
Which of the following commands should the systems administrator execute NEXT to troubleshoot this issue? (Select two).

NO.85 A Linux administrator is troubleshooting the root cause of a high CPU load and average.

Which of the following commands will permanently resolve the issue?

NO.86 Which of the following commands will display the operating system?