A Linux administrator is configuring a server to log security events for the ping command while allowing the request to occur. The Linux server is using AppArmor to manage its security services.
Which of the following commands is the BEST option?

A systems administrator is using a Linux laptop to troubleshoot network devices. The administrator runs the following command:
# screen /dev/USB0
Which of the following does this command MOST likely accomplish?

An administrator receives a USB drive and wants to make an exact copy of the disk before starting to work on it. One of the partitions on the USB drive was mounted as /dev/sdc1.
Which of the following commands should the administrator use?

An administrator is writing a Bash script to audit SSH logins. Which of the following logs would the administrator parse to find the needed information?

An administrator is troubleshooting an issue where end users are waiting a very long times for processes to respond. The top command reveals that multiple processes seem to be m a non-responsive state or have become zombies. Which of the administrator use to clean up the system?