Which of the following filesystems contains non-persistent or volatile data?
A Linux administrator wants to make the ENABLE_AUTHvariable set to 1 and available to the environment of subsequently executed commands. Which of the following should the administrator use for this task?
An administrator needs to remove the directory /home/user1/dataand all of its contents.
Which of the following commands should the administrator use?
A Linux user frequently tests shell scripts located in the /home/user/scriptsdirectory. Which of the following commands allows the user to run the program by invoking only the script name?
An administrator receives reports that a web service is not responding. The administrator reviews the following outputs:

Which of the following is the reason the web service is not responding?
A Linux administrator is concerned about corruption of the partition table and wants to make a backup. Which of the following should the administrator use?
A Linux user needs to authenticate to a Windows Active Directory domain. Which of the following configuration files contains the domain configuration details?
Application owners are reporting that their application stops responding after several days of running, and they need to restart it. A Linux administrator obtains the following details from the dmesgcommand:

The application owners mentioned that resources to the system have boon increased, and the error takes longer to appear. Which of the following best describes the reason the process is being terminated by OOM?
Which of the following is the first step when starting a new Python project on a Linux system?
A systems administrator receives reports from users who are having issues while trying to modify newly created files in a shared directory. The administrator sees the following outputs:

Which of the following provides the best resolution to this issue?
A Linux administrator is creating a symbolic link /home/docsleading to the
/usr/share/documents/directory. Which of the following commands allows the administrator to achieve this goal?
A Linux administrator notices that an application is having trouble connecting to an external database. Which of the following commands should the administrator use to validate the connection to the remote port exposed by a database server?
SIMULATION 3
You are a systems administrator and have created an uncompressed backup of the application directory. Several hours later, you must restore the application from backup.
INSTRUCTIONS
Within each tab, click on an object to form the appropriate command used to create the backup and restore the application.
Command objects may only be used once, but the spacebar object may be used multiple times.
Not all objects will be used. Click the arrow to remove any unwanted objects from your command.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.




-cvf creates (-c) a verbose (-v) archive file (-f) named /backups/application.tar.
-C /opt/ application changes to /opt/ so only the relative application directory is saved, avoiding absolute paths.
-xvf extracts (-x) the same archive, and -C /opt/ restores the contents back into the original location.
A user on a Linux VM is running /work/test.shBash script and receives the following error:
bash: /work/test.sh: Permission denied
After further investigation, the user receives the following outputs:

Which of the following commands should a systems administrator run to fix the issue?
A systems administrator troubleshoots a connectivity issue and needs to determine whether port
449 is open. Which of the following commands should the administrator use?